A Study On The Error Performance Of Orthogonal/biorthogonal Signals Over MIMO Fading Channels

M-ary orthogonal/biorthogonal signals are widely applied to transmitter power-limited wireless communication systems(e.g.,ultra-wideband ratio or deep space communications).One of the measures to improve the performance of orthogonal/biorthogonal signals over fading channels is arbitrary order transmit antenna selection(TAS)/receive maximum-ratio combining(MRC)diversity,which is more flexible,and the prerequisite for its realization is that the channel-state information(CSI)is known at the transmitter.Therefore,the performance of coherent orthogonal/biorthogonal signals with perfect CSI and arbitrary order TAS/MRC diversity is investigated in this paper.However,in applications,it is difficult to obtain the perfect CSI.The joint application of Wiener channel prediction filter and pilot-symbol-assisted modulation(PSAM)is an effective measure to obtain channel estimates and reduce the performance deterioration caused by feedback delay.Therefore,the performance of coherent orthogonal/biorthogonal signals,in conjunction with outdated CSI and transmit antenna selection with prediction(TASP)/MRC or arbitrary order TASP/MRC diversity over fading channels are investigated in this paper,respectively.Chapter 1 presents a brief review of error performance of orthogonal/biorthogonal signal,joint transmit and receive antenna diversity,and PSAM and its applications in channel prediction.Chapter 2 derives the exact and/or approximate expressions for the average symbol error rate(ASER)of M-ary coherent orthogonal/biorthogonal signals with perfect CSI and arbitrary order TAS/MRC diversity over Nakagami fading channels.Numerical and simulation results are presented to analyze the effects of different distributing of the antennas over transmit and receive side,different order of TAS and fading parameters of Nakagami channels on the ASER performance of M-ary coherent orthogonal/biorthogonal signals,in conjunction with arbitrary order TAS/MRC.Chapter 3 obtains the exact and/or approximate expressions for the ASER of M-ary coherent orthogonal/biorthogonal signals with the minimum mean square error(MMSE)prediction and TASP/MRC diversity over Rayleigh block fading channels.Numerical and simulation results are presented to analyze the effects of different distributing of the antennas over transmit and receive side,feedback delay and M on the ASER performance of M-ary orthogonal/biorthogonal signals.Chapter 4 investigates the performance of coherent orthogonal/biorthogonal signals with MMSE channel prediction and arbitrary order TASP/ MRC diversity over Rayleigh block fading channels,derives exact and/or approximate expression for the ASER of coherent M-ary orthogonal and biorthogonal signals.Numerical and simulation results are presented to illustrate the effect of the different distributing of antennas over transmit and receive side,the order of TAS,and feedback delay on the ASER performance of M-ary orthogonal/biorthogonal signals with TASP/MRC diversity.Chapter 5 finishes the dissertation with concluding remarks.