Capacity Analysis of Downlink MIMO-OFDMA Resource Allocation with Limited Feedback

被引：4

作者：

Leinonen, Jouko ^{[1
]}

Hamalainen, Jyri ^{[2
]}

Juntti, Markku ^{[3
]}

机构：

[1] Ericsson R&D Ctr, Oulu, Finland

[2] Aalto Univ, FI-02015 Helsinki, Finland

[3] Univ Oulu, Ctr Wireless Commun, FI-90014 Oulu, Finland

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2013年 / 61卷 / 01期

关键词：

Capacity analysis; limited feedback; orthogonal frequency division multiple access (OFDMA); resource assignment; RAYLEIGH FADING CHANNELS; ADAPTIVE TRANSMISSION; PERFORMANCE ANALYSIS; CQI FEEDBACK; STRATEGIES; SUBCARRIER;

D O I：

10.1109/TCOMM.2012.101812.100374

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Opportunistic resource allocation for multiple users utilizing multiple-input multiple-output (MIMO) channel in orthogonal frequency division multiple access (OFDMA) is used to attain the spectral efficiency required in future wireless communications networks. In this paper, we express analytical outage capacity results and average capacity results with optimal rate adaptation for MIMO-OFDMA systems with limited feedback. A resource block (RB)-wise SNR quantization feedback scheme and a best-M feedback method are studied for RB allocation. Feedback based transmit antenna selection (AS) is considered in the analysis. An imperfect feedback channel has a significant impact on the performance of practical feedback based communication. The proposed analysis also considers imperfect feedback in the RB allocation and AS.

引用

页码：120 / 130

页数：11

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