| 摘要: |
| 在莱斯衰落信道下，研究了使用联合发射/接收天线选择(JTRAS)和正交空时分组码(OSTBC)的多输入多输出(MIMO)系统的平均符号误码率(ASEP)性能。基于标量加性高斯白噪声(AWGN)信道的方法，推导出了分别使用频移键控调制(FSK)和脉冲幅度调制(PAM)的ASEP性能的精确闭合表达式。数值仿真结果与理论分析结果相吻合，验证了分析结果的正确性。仿真结果表明：随着发射天线或接收天线数的增加，JTRAS/OSTBC系统的ASEP性能得到了很好的改善，当使用2FSK调制，信噪比为8 dB时，(4,4;2)系统的误码率是1×10-2,(6,6;6)系统的误码率是2×10-4；莱斯因子对JTRAS/OSTBC系统的ASEP性能有显著影响，当使用2FSK调制，信噪比为10 dB时,在莱斯因子为0时，(4,4;4)系统的误码率是7×10-4；在莱斯因子为4时，(4,4;4)系统的误码率是1.5×10-4；在莱斯因子为100时，(4,4;4)系统的误码率是8×10-5。 |
| 关键词: 多输入多输出 联合发射/接收天线选择 正交空时分组码 莱斯衰落信道 平均符号误码率 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目(60902005，61304222);山东省自然科学基金资助项目(ZR2012FQ021);青岛市国际科技合作项目（12-1-4-137-hz） |
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| Performance analysis of JTRAS /OSTBC systems in Rice fading channels |
| XU Ling-wei,ZHANG Hao,LIU Xing,WANG Jing-jing,Gulliver T A |
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| Abstract: |
| The average symbol error probability(ASEP) of multiple-input multiple-output(MIMO) systems in Rice fading channels is analyzed by applying joint transmit/receive antenna selection(JTRAS) and orthogonal space-time block code(OSTBC).Based on the scalar additive white Gaussian noise(AWGN) channel approach,the accurate closed form expressions of ASEP are derived for frequency shift keying modulation(FSK) and pulse amplitude modulation(PAM).The numerical simulations result coincides with theoretical results well and the accuracy of analytical result is verified．Simulation results show that the ASEP performance can be improved with the increase of the number of transmitting antennas or receiving antennas,when SNR=8 dB,the ASEP of(4,4;2) with 2FSK is 1×10-2,(6,6;6) is 2×10-4; Rice factor has a significant impact on the ASEP performance,when SNR=10 dB,Rice factor is 0,the ASEP of (4,4;4) with 2FSK is 7×10-4,Rice factor is 4,(4,4;4) is 1.5×10-4,Rice factor is 100,(4,4;4) is 8×10-5. |
| Key words: MIMO joint transmit /receive antenna selection orthogonal space-time block code Rice fading channels average symbol error probability |
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