Luận văn Thạc sĩ Kỹ thuật: Nghiên cứu tối ưu điều khiển công suất khi tăng cường các trạm lặp MIMO trong Cell

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Đề tài "Nghiên cứu tối ưu điều khiển công suất khi tăng cường các trạm lặp MIMO trong Cell" đã tìm hiểu và đề xuất mô hình tăng cường MIMO Relays trên cơ sở tối ưu điều khiển công suất nhằm tối ưu dung lượng của Cell. Mời các bạn cùng tham khảo nội dung chi tiết.

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Nội dung Text: Luận văn Thạc sĩ Kỹ thuật: Nghiên cứu tối ưu điều khiển công suất khi tăng cường các trạm lặp MIMO trong Cell

B O I HI ----------------------------- NGUY U TU KHIT M LP MIMO TRONG CELL LU THUT I - 2015
B O I H NI ------------------------------- NGUY U TU KHIT M LP MIMO TRONG CELL  THUT TRUY LU THUT NG DN KHOA HC : TS. NGUYN NG I - 2015
MỤC LỤC L .......................................................................................................4 : GII THIU CHUNG ........................................................................14 1.1. H thng.............................................................................14 1.1.1. Lch s n ca h thng ......................................14  ...................................................................................17 1.1.3. Nhng v n t h ng .....................20 1.2. Nu ......................................................................................22 1.3. Kt lu .............................................................................................23 : M LP MIMO TRONG CELL .............24 2.1. Gii thiu chung .............................................................................................24  thng MIMO ............................................................................... 26 -MIMO............................................................................30 -SISO......................................................................31 -SIMO .................................................................... 31 -MISO .................................................................... 32 -MIMO ..................................................................33 -MIMO ..........................................................................35 p MAC-MIMO .............................................................35 -MIMO ...................................................................... 36 p MAC- MIMO ................................36 - MIMO ........................................ 37 m c MIMO .......................................................37 m ca MIMO ................................................................................37 2.m ca MIMO...........................................................................37 m lp ............................................................................................38 1
i trm lp........................................................................................39 2.3.1.1. Trm lp khuyn tip ......................................................40 2.3.1.2. Trm lp gin tip..............................................................40 m lp MIMO trong Cell ..............40 2.3.2.1. Trin khai trm lp c nh ......................................................................40 2.3.2.2. Trin khai trm lng .....................................................................41 2.3.2.3. Trin khai trm lp tm thi .................................................................... 42 2.3.2.3. Trin khai trm lp cho khu vc ngo ..........................................43 2.3.2.4. Trin khai trm lp cho khu v .............................................44 2.3.2.5. Trin khai trm lp cho khu v ............................................ 44 m c trm lp .....................................................45 m c trm lp .............................................................45 m c trm lp ....................................................... 46 ng trm lp MIMO trong Cell .......................46 t UE-RN ..........................................................................................48 2.4.2. t RN-eNB ........................................................................................49 t eNB-RN ........................................................................................49 2.5. Kt lu .............................................................................................49 : TU KHIT M LP MIMO TRONG CELL ........................... 50 3.1. Gii thiu chung .............................................................................................50 3.2. Thuu khi t ............................................ 52 3.2.1. Thuu khi u ....................................52 3.2.1.2. Thuu khin  .....................................53 3.2.1.3. Thung (Up-down) ............................................................55  thi ca thuu khi......................55 3.2.2. Thup ..............................................................................................59 2
3.2.3. Thui gin ......................................................................................62 3.3. Tu khim lp MIMO trong Cell ......65 3.3.1. Tu khing trm lp AF MIMO ..............66  thm lp AF MIMO ......................67 3.3.1.2. Tu khi ....................................70 3.3.1.3. Tu khi i RN ...................................70 3.3.1.4. Tu khi i eNB..................................71 3.3.1.5. Kt qu t  .....75 3.3.2. T t ching .....77 3.3.3. T  u khi    t trong h thng MIMO Relay mt chiu hai chng, s dn tip song song .......................................78 3.3.4. T  u khi    t trong h thng MIMO Relay mt chiu hai chn dit trc tip ngu .............................79 3.3.5. Tu khit cho h thng MIMO hai chiu, hai chng .....80 t qu ng thc nghim ...............................................82 3.4.1. Tu khim lp AF MIMO tuy .... 82 t qu ng thc nghim ...................................................85 3.5. Kt lu .............................................................................................89 : KT LUN NGH  XUT..........................................90 U THAM KHO .........................................................................................93 3
L c s k thu thc hin  c i s ng dn khoa hc ca TS. Nguyn Ngt qu do  u o t  cu khoa h. N v sai phm bn quy ng.    4
DANH M VIT TT ADC Analog Digital Converter ADSL Asymmetric Digital Subscriber Line AF Amplify and Forward AMPS Advance Mobile Phone Service AWGN Additive White Gaussian Noise BER Bit Error Rate BLAST Bell-Laboratories Layered Space-Time Code BPF Band Pass Filter BPSK Binary Phase Shift Keying BS Base Station CDM Code Division Multiplexing CDMA Code Division Multiple Access CMPT Coordinated Multi-Point Transmission CSI Channel State Information DAC Digital Analog Converter DAB Digital Analog Broadcasting D-BLAST Diagonal- Bell-Laboratories Layered Space-Time Code DF Decode and Forward DFT Discrete Fourier Transform DPSK Differential Phase Shift Keying DVB -H Digital Video Broadcasting - Handheld DVB -T Digital Video Broadcasting  Terrestrial EDGE Enhanced Data rates for GSM Evolution NB FDM N d B Division Multiplexing Frequency FDMA Frequency Division Multiple Access FEC Forward Error Correction FFT Fast Fourier Transform FIR Finite Impluse Response GPRS General Packet Radio Services 5
GSM Global System For Mobile Communication HDSL Hight-bir-rate Digital Subscriber Line HSPA High Speed Packet Access I.I.D Independent and Identically Distributed ICI Inter Carrier Interference IDFT Inverse Discrete Fourier Transform IEEE Institute of Electrical and Electronics Engineers IFFT Inverse Fast Fourier Transform IS-136 Interim Standard 136 IS-95 Interim Standard 95 ISI InterSymbol Interference ITU International Telecom Union LAN Local Area Network LMMSE Linear Minimum Mean Sqare Error LOS Light Of Sight LPF Low Pass Filter LTE Long Term Evolution MI Mutual Information MIMO Multiple Input Muliple Output MU-MIMO Multi-User MIMO MISO Multiple Input single Output ML Maximum Likelihood MMSE Minimum Mean Sqare Error MMSE-IC MMSE-Interference Cancellation MRC Maximum Ratio Combiner MS Mobile Station MSE Mean Sqare Error NLOS Non Light Of Sight NMT450 Nordic Mobile Telephone 450 NTT Nipon Telegraph and Telephone OFDM Orthogonal Frequency Division Multiplexing 6
OFDMA Orthogonal Frequency Division Multiple Access P/S Parallel to Serial PAPR Peak to Average Power Ratio PDC Personal Digital Cell Pdf Probability Density Function QAM Quadrature Amplitute Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency S/P Serial to Parallel SC Single Carrier Communication SD Source-to-Destination SDM Spatial Division Multiplexing SU- MIMO Single User MIMO SIMO Single Input Multiple Output SINR Signal to Interference plus Noise Ratio SR Source-to-Relay SISO Single Input Single Output STBC Space-Time Block Code STMLD Space-Time Maximum Likelihood Decoder SVD Singular Value Decomposition TACS Total Access Communication System TDMA Time Division Multiple Access TGn Task Group N V-BLAST Vertical-Bell-Laboratories Layered Space-Time WCDMA Wideband CDMA WIFI Wireless Fidelity WIMAX World Interoperability Microwave Access ZF Zero-Forcing ZF-OIC Zero-Forcing  Ordered Interference Cancellation 7
      x, n, m, i  Vec- x, s    H P  P, N, M anten thu N,  M (.) -1  H-1    E{.}  E{nnH}  tr (.) tr (H)   H (.) Hermitian HH  A = diag {a n}    {    IK  IN 0N  0N hi,j  H h1,1 M, C MxN N    MAC C  CMAC  C BC  CBC 8
DANH MNG B  bn c h mng .... 17 Bng 2. 1.ng trm lp ...................................................... 47 Bng 3. 1.Th tc ca thup ...................................................................... 63 Bng 3. 2. Th tc ca thui gin ............................................................. 64 9
DANH MC   1. Lch s n h thng ........................................ 14 1.  th...26 2. n MIMO .................................................................. 28 h 2.3. -MIMO ...................................................................... 30 4. K-SIMO ...................................................................................... 32 5. K-MISO ...................................................................................... 32 6. K-MIMO .................................................................................... 33 .7. Kp MAC- MIMO .......................................................... 35 8. K- MIMO ................................................................... 36 ng trm ln ..................................................... 38 ng two-hop Relay .................................................... 39 11.  .................................................................. 41 12.  .................................................................. 41 13.  ................................................................. 42 14.  ............................................. 43 15.  ............................................. 44 16.  .................................................. 45 m truyn thng MIMO Relay ............. 46 1 thng SU-MIMO Relay ...................................................... 60  thng AF MIMO Relay ...................................................... 68 t SD ............................ 69 4. Pdf c suy bin trong ma trn 4x4 Gaussian ........ 73 5. Pdf c suy bin trong ma trn 8x4 Gaussian ........ 74 n ti t ............... 74 n ti t  ng g ................................................................................................ 75  h thng MIMO mt ching ........................................... 77  h thng MIMO mt chiu hai chn tip .......... 79 10
 khi ca h thng MIMO Relay tuyu hai chng.... 81  thng AF MIMO Relay mt chiu hai chng, tuy . 82  BER theo SNR 21=20dB S= MR= MD = M = 4 ........................... 86  BER theo SNR 21=20dB - S= MR = MD = M = 4. ....................... 87   BER theo SNR1    2=20dB     S= MR = MD = M = 4. ......................... 87   BER theo SNR1    2=20dB      S= MR = MD = M = 4. .......................... 88 11
LI M U  ng ph,       . N      g  thu chia theo tn s trc giao (Orthogonal Frequency Division Multiple Access, OFDMA) m lp (Relay)  c nhic u  trin khai ng dng,  a h th rng. c bit, tn LTE-Advanced (Long Term Advanced) [31] ng nh, vi s ng m lng s dng MIMO vi Relays trong tng Cell   m r    ng ca h thng, khc phng s dng trm lp MIMO trong t trong nhng gi i t n tin mng th h th 4 (4G). Tuy nhii nht ca s kt h        m trm lp MIMO (MIMO n ti rt nhiu v ci quy u khi                 ts    Ni dung ca lu  i thiu chung ng m lp MIMO trong Cell  u khim lp MIMO trong Cell t lun ngh  xut 12
Ni dung  a lu   tp trung     ng dng thut  u khit ti gin trong u khit.  c c tu khit t ngun (eNode B), t n tit trm l da a h thng MIMO Relay  hiu qu ca tu khing MIMO i vi vi ng Cell di quan h  ca tham s   t s u (SNR), t l li bis (BER), t l sai s   nht MMSE.      u ki         ng n loi trm lp khuyn tip AF (Amplify     u s kt h   Relays v   thut MIMO. Trm lp AF s c s d        ng MIMO Relays trong Cell. Kt qu u ca lu n gii quyt v tu kin t nhm tng Cell khi trin khai ng dng kt h MIMO, Relays trong LTE-Advanced. Mu c gi gian  u trang b kin thc cho ni dung lu  hn ch bt bn rn, lu c  i nht mong nhc s n c luc ng cn Ngng d  sut thi gian thc hin lu     13
 GII THIU CHUNG 1.1. H thng 1.1.1. Lch s n ca h thng t ng 1985 1995 2000 2005 2010 2015 Thi gian Cao 4G HSxPA 3GPP LTE WCDMA LTE-Advanced TD-SCDMA  GSM CDMA200 3GPP2 LTE 1G CDMA2000 1xEV.Dx IS-95 Wimax Relesae II Wimax Thp 802.16e 802.11n CDMA2000 Wifi WLAN 5.8G WLAN T s liu < 10kbps < 200kbps < 300kbps-10Mbps < 100Mbps 1. Lch s n h th H th ng th h th nht (1G) ng i th d n s FDMA (Frequency Division Multiple access) [10] th c th h di ng th nht g thn thon AMPS (Advanced Mobile m AT&T Bell tri1982, h th tin truy nhp tng th  thn thong B tn 450 Hhz) hay h thn 900 Mhz. H thng th h th hai (2G) s dng k thut s v ngh i gian TDMA (Time Division Multiple Access)  truy nhp  (Code Division Multiple access) quan tr thng 2G  i 14
s dng. Mt s h thng th h th  c tri gii  thu GSM, h thng IS- 95 (Interim Standard 95) ca M do Qualcomm  xut, h th    ng TDMA ci tin IS-136 (Interim Standard 136) ca M  xut  thng t PDC (Personal Digital Cell) ca Nht Bn. Trong thp k 90,  ng th h th ba vi IMT-2000 nh truy nhp, m rng nhiu lo dch vng th thng hi m bo s c cng. n cho IMT- xut, tro    th      CDMA  ng WCDMA (Wide band Code Division Multiple access)  -  c hip hi vin c t ITU (International Telecommunication Union)  xut ng thu s dng  CDMA [6]u  c hi gii cho giao din ca h thng th h th ba (3G). c khi trin khai h thng 3G, cn h thng mng  gi  h 2,5G.    2,5G    GPRS (General Packet Radio Services), h thng ch v d liu t cao EDGE (Enhanced Data rates for GSM Evolution)  IS-95B. GPRS       theo  cung        cao cho   GSM -136. ch v mng mi i thich v n truyn s li lii s dng, s liu chuyn m cao, dch v chung truyn s liu vi  H thng th h th ba (3G) l h ng cho ch v truyn [7]. Chuu ca ITU      ng d  ch v  o   lo     ch v d ). Mc thit lp ti Nht b0 c c sn 15
khai   3G h tr i t di chuyn ln t khu vc) i vng h Np hp Vi M ch mt  ngh    ng (W-    qua cho h thng chung UMTS. -   xua 3G.      G (3G+                 3G, c    3,5G  HSDPA (High Speed Packet Access)     mang                 3G (W-CDMA). Theo                      .   LTE-Advanced [7]  -Advanced, vi      C-FDMA, MIMO, AMC, Hybrid ARQ...   - -Advanced  -MC CDMALTE-  -       .        T  16
                                                                                    Bng 1.1.  n c h m      .              v.    17
     c -TISPAN, ITU-   LTE.                -                    (Relays)     Mt s   gi u s dng trong mng th h m   CoMP   phi hp truyn d  m CoMP (Coordinated Multi-Point Transmission), phi hp truy mn ti mt s n tip (trm lp) trm lp chuyn tip c x  t h dc t trm lp  n  nh u thu. L a h thng CoMP trong vi  t ng dch v:   u qu s dng mng bng vic cung cp kt ni ti nhiu trm  mt   tn dng ti     s dng nhiu t   mt   m  vic mt kt ni.  H th  i thi   v t l        nhiu  thit b u cui, gi nhiu t 18