衰落信道下MIMO-OFDM系统信道容量分析
doi: 10.3724/SP.J.1146.2006.01770
Analysis of the Channel Capacity of MIMO-OFDM Systems under Fading Environments
-
摘要: 针对以往文献的不足，该文重新推导了衰落信道下MIMO-OFDM系统信道容量公式，分析了子载波数目、时延扩展、角度扩展以及天线间距等因素对信道容量的影响。理论分析和仿真结果符合MIMO-OFDM信道容量特征。Abstract: Considering the defect existing in the previous document, the channel capacity formula of MIMO-OFDM systems is derived again, and the effects of the number of sub-carriers, delay spread, angle spread and antenna spacing on the capacity are investigated. The theory analysis and simulation results descript the characters of the channel capacity of MIMO-OFDM systems.
-
[1] Tarokh V, Seshadri N, and Calderbank A R. Space-time codes for high data rate wireless communication: performance criteria and code construction[J].IEEE Trans. on Inform Theory.1998, 44(2):744-765 [2] Foshini G J and Gans M J. On limits of wireless communications in a fading environment when using multiple antennas[J].Wireless Personal Communications.1998, 6(3):311-335 [3] Gesbert D, Shafi M, and Shiu D, et al.. From theory to practice: an overview of MIMO space-time coded wireless systems[J].IEEE Journal on selected Areas in Communications.2003, 21(3):281-300 [4] Saltzberg B R. Performance of an efficient parallel data transmission system[J].IEEE Trans. on Communication Theory.1967, 15(6):805-811 [5] Weinstein S B and Ebert P M. Data transmission by frequency-division multiplexing using the discrete fourier transform[J].IEEE Trans. on Communication Theory.1971, 19(5):628-634 [6] Paulraj A J, Gore D A, and Nabar R U, et al.. An overview of MIMO communicationsA key to gigabit wireless[J].Proceedings of the IEEE.2004, 92(2):198-218 [7] Blcskei H, Gesbert D, and Paulraj A J. On the capacity of OFDM-based spatial multiplexing systems[J].IEEE Trans. on Communications.2002, 50(2):225-234 [8] Proakis J G. Digital Communication(4th Edition). Beijing: Publishing House of Electronics Industry, 2002: 800-895. [9] Chuah C, Tse D N C, and Kahn J M, et al.. Capacity scaling in MIMO wireless systems under correlated fading[J].IEEE Trans. on Information Theory.2002, 48 (3):637-650 [10] Lee W C Y. Effects on correlation between two mobile radio base-station antennas[J].IEEE Trans. on Communications.1973, 21(11):1214-1224 -
计量
- 文章访问数: 4014
- HTML全文浏览量: 166
- PDF下载量: 1693
- 被引次数: 0
下载:
