Adaptive Modulation for MIMO systems with Decision-Feedback Equalizer

被引：0

作者：

Ammari, Mohamed L. ^{[1
]}

Fortier, Paul ^{[1
]}

机构：

[1] Univ Laval, Dept Elect & Comp Engn, Quebec City, PQ, Canada

来源：

2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | 2013年

关键词：

GEOMETRIC MEAN DECOMPOSITION; FADING CHANNELS; TRANSMIT; DESIGN;

D O I：

暂无

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：

This paper analyzes an adaptive modulation scheme for precoded multiple-input multiple-output MIMO systems with minimum-mean-squared-error decision feedback equalizer. The MIMO channel is assumed to be spatially correlated with multipath Rayleigh fading. The zero-padding technique is used to eliminate the inter-block interference. To adjust the constellation size, the signal-to-interference-plus-noise (SINR) ratio at the equalizer output is sent back to the transmitter. In this paper, we derive the probability density function of the SINR for flat fading and frequency selective channels. Then, we present accurate closed-form expressions of the spectral efficiency and the average BER. The derived expressions are compared to simulation results.

引用

页数：5

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