On the bounds of frequency-selective channel capacity with doubly correlated geometrical MIMO channel model  

作　　者：LI Yong-hua , Lü Tie-jun, WU Xiao-fei, ZHANG Lin Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China 

出　　处：《The Journal of China Universities of Posts and Telecommunications》2010年第2期8-13,共6页中国邮电高校学报（英文版）

基　　金：supported by the Fundamental Research Funds for Central Universities (2009RC0116);the National Natural Science Foundation of China (60972075);the Program for New Century Excellent Talents in University (NCET-06-0091)

摘　　要：The multi-input multi-output （MIMO） technology plays an important role in link transmissions. This article considers the general case for the ergodic capacity in doubly correlated frequency-selective MIMO channel. In the study, the geometrical MIMO channel model is presented. Based on the formula of MIMO ergodic capacity, the capacity limits are studied with arbitrary finite number of antennas in the frequency-selective MIMO channel. It first derives the exact expressions for the upper bound and lower bound in doubly correlated MIMO channel. The results for the single-ended correlation and independent identically distributed （i.i.d.） MIMO channel are also obtained as special cases. Then the simple expressions of the capacity bounds are attained at high SNR. Finally, results are provided by Monte Carlo simulations to verify the tightness of the derived bounds.The multi-input multi-output （MIMO） technology plays an important role in link transmissions. This article considers the general case for the ergodic capacity in doubly correlated frequency-selective MIMO channel. In the study, the geometrical MIMO channel model is presented. Based on the formula of MIMO ergodic capacity, the capacity limits are studied with arbitrary finite number of antennas in the frequency-selective MIMO channel. It first derives the exact expressions for the upper bound and lower bound in doubly correlated MIMO channel. The results for the single-ended correlation and independent identically distributed （i.i.d.） MIMO channel are also obtained as special cases. Then the simple expressions of the capacity bounds are attained at high SNR. Finally, results are provided by Monte Carlo simulations to verify the tightness of the derived bounds.

关 键 词：MIMO CORRELATION capacity BOUNDS 

分 类 号：TN919.3[电子电信—通信与信息系统]