CAJ | 학술논문

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(OST-BC)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。
재래사쇠락신도하,연구료사용연합발사/접수천선선택(JTRAS)화정교공시분조마(OST-BC)적다수입다수출( MIMO)계통적평균부호오마솔( ASEP)성능。기우표량가성고사백조성(AWGN)신도적방법,추도출료분별사용빈이건공조제(FSK)화맥충폭도조제(PAM)적 ASEP 성능적정학폐합표체식。수치방진결과여이론분석결과상문합,험증료분석결과적정학성。방진결과표명：수착발사천선혹접수천선수적증가,JTRAS / OSTBC 계통적 ASEP 성능득도료흔호적개선,당사용2FSK 조제,신조비위8 dB시,(4,4；2)계통적오마솔시1×10-2,(6,6；6)계통적오마솔시2×10-4；래사인자대 JTRAS / OSTBC 계통적 ASEP 성능유현저영향,당사용2FSK 조제,신조비위10 dB시,재래사인자위0시,(4,4；4)계통적오마솔시7×10-4；재래사인자위4시,(4,4；4)계통적오마솔시1.5×10-4；재래사인자위100시,(4,4；4)계통적오마솔시8×10-5。
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 orthog-onal 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 perform-ance 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 im-pact 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 .