| ERGODIC CAPACITY FORMULA OF MIMO-OFDM SYSTEMS UNDER CORRELATED FREQUENCY SELECTIVE RAYLEIGH FADING CHANNELS |
| |
| 作者姓名： | Pang Jiyong Li Jiandong Zhao Linjing |
| |
| 作者单位： | Broadband Wireless Communications Lab，Information Science Institute，State Key Lab of Integrated Service Networks，Xidian University，Xi'an 710071，China |
| |
| 基金项目： | 国家自然科学基金，国家自然科学基金，国家高技术研究发展计划(863计划)，教育部高等学校博士学科点专项科研基金，教育部高等学校骨干教师资助计划，教育部科学技术研究重点项目 |
| |
| 摘 要： | An explicit formula for the ergodic capacity of Orthogonal Frequency Division Multiplexing (OFDM)-based Multiple-Input Multiple-Output (MIMO) systems under correlated frequency selective Rayleigh channels is derived,by simplifying the channel response matrix in frequency domain into the so-called Kronecker model composed of three kinds of correlations,i.e.multipath tap gain correlation and spatial fading correlations at both transmitter and receiver.The derived formula is very simple and convenient for one to estimate the effects of all three kinds of correlations on MIMO-OFDM capacity.If taps are independent,there is a very simple expression for the ergodic capacity.In case of tap correlation,the capacity formula could be further given in an integral expression.The validity of the new formula is verified and the effects of correlations,delay spread as well as the number of subcarriers on the ergodic capacity are evaluated via Monte Carlo simulations.
|
| 关 键 词： | 各态历经 容量公式 输出 输入 频率 |
| 收稿时间： | 5 December 2005 |
| 修稿时间： | 2005-12-05 |
Ergodic capacity formula of MIMO-OFDM systems under correlated frequency selective Rayleigh fading channels |
| |
| Pang Jiyong Li Jiandong Zhao Linjing.ERGODIC CAPACITY FORMULA OF MIMO-OFDM SYSTEMS UNDER CORRELATED FREQUENCY SELECTIVE RAYLEIGH FADING CHANNELS[J].Journal of Electronics,2007,24(5):588-592. |
| |
| Authors: | Pang Jiyong Li Jiandong Zhao Linjing |
| |
| Affiliation: | Broadband Wireless Communications Lab, Information Science Institute,State Key Lab of Integrated Service Networks, Xidian University, Xi'an 710071, China |
| |
| Abstract: | An explicit formula for the ergodic capacity of Orthogonal Frequency Division Multiplexing (OFDM)-based Multiple-Input Multiple-Output (MIMO) systems under correlated frequency selective Rayleigh channels is derived,by simplifying the channel response matrix in frequency domain into the so-called Kronecker model composed of three kinds of correlations,i.e.multipath tap gain correlation and spatial fading correlations at both transmitter and receiver.The derived formula is very simple and convenient for one to estimate the effects of all three kinds of correlations on MIMO-OFDM capacity.If taps are independent,there is a very simple expression for the ergodic capacity.In case of tap correlation,the capacity formula could be further given in an integral expression.The validity of the new formula is verified and the effects of correlations,delay spread as well as the number of subcarriers on the ergodic capacity are evaluated via Monte Carlo simulations. |
| |
| Keywords: | Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) Kronecker product Channel correlation Ergodic capacity |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《电子科学学刊(英文版)》浏览原始摘要信息 |
|
点击此处可从《电子科学学刊(英文版)》下载全文 |
