机构地区:[1]Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China [2]Department of Electrical and Computer Engineering, University of Delaware, Delaware 19716, USA [3]Department of Electronic Engineering, City University of Hong Kong, Hong Kong, China [4]State Key Laboratory of Millimeter Waves, City University of Hong Kong, Hong Kong, China
出 处:《Science China(Information Sciences)》2016年第8期160-175,共16页中国科学(信息科学)(英文版)
基 金:supported in part by National Natural Science Foundation of China (Grant Nos. 61172077, 61571225);Qing Lan Project of Jiangsu, City University of Hong Kong (Grant No. 7002763);Shenzhen Strategic Emerging Industry Development Funds (Grant No. JSGG20150331160845693)
摘 要:In this paper, the performance analysis of MIMO systems with arbitrary number transmit antenna selection (TAS) and orthogonal space-time block coding (STBC) in Rayleigh fading channels for imperfect channel state information (CSI) is presented. For the performance analysis, the moment generating function of the system effective SNR as well as its upper and lower bounds are derived. Then, accurate and approximate expressions of bit error rate (BER) of MIMO-TAS-STBC with MPSK and MQAM are further derived. Using the approximate BER formula and imperfect CSI, an adaptive antenna selection scheme is developed for minimizing the BER. The diversity gain and coding gain are analyzed at high SNR. The results indicate that the MIMO- TAS-STBC for imperfect CSI can only achieve partial diversity order KN and the coding gain is affected by K, N, code rate, modulation pattern, and channel correlation coefficients, when K transmit antennas are selected and N receive antennas are used. Simulation results show that the theoretical analysis matches the simulation result well, and the approximate expressions are close to the accurate ones but have a lower complexity.In this paper, the performance analysis of MIMO systems with arbitrary number transmit antenna selection (TAS) and orthogonal space-time block coding (STBC) in Rayleigh fading channels for imperfect channel state information (CSI) is presented. For the performance analysis, the moment generating function of the system effective SNR as well as its upper and lower bounds are derived. Then, accurate and approximate expressions of bit error rate (BER) of MIMO-TAS-STBC with MPSK and MQAM are further derived. Using the approximate BER formula and imperfect CSI, an adaptive antenna selection scheme is developed for minimizing the BER. The diversity gain and coding gain are analyzed at high SNR. The results indicate that the MIMO- TAS-STBC for imperfect CSI can only achieve partial diversity order KN and the coding gain is affected by K, N, code rate, modulation pattern, and channel correlation coefficients, when K transmit antennas are selected and N receive antennas are used. Simulation results show that the theoretical analysis matches the simulation result well, and the approximate expressions are close to the accurate ones but have a lower complexity.
关 键 词:MIMO arbitrary number antenna selection imperfect CSI space-time block coding diversitygain bit error rate.
分 类 号:TN919.3[电子电信—通信与信息系统] TN827.1[电子电信—信息与通信工程]
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