Feedback Subsampling in Temporally-Correlated Slowly-Fading Channels using Quantized CSI

被引：19

作者：

Makki, Behrooz ^{[1
]}

Eriksson, Thomas ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Signals & Syst, S-41296 Gothenburg, Sweden

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2013年 / 61卷 / 06期

关键词：

Feedback subsampling; temporally-correlated channels; quantized CSI; HARQ feedback; fast-fading channels; adaptive power allocation; EXPLOITING MULTIUSER DIVERSITY; LIMITED FEEDBACK; HYBRID-ARQ; THROUGHPUT; PERFORMANCE; COMPRESSION; PROTOCOLS;

D O I：

10.1109/TCOMM.2013.042313.120167

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 studies the problem of feedback subsampling in temporally-correlated wireless networks utilizing quantized channel state information (CSI). Under both peak and average power constraints, the system data transmission efficiency is studied in two scenarios. First, we focus on the case where the codewords span one fading block. In the second scenario, the throughput is determined for piecewise slowly-fading channels where the codewords are so long that a finite number of correlated gain realizations are experienced during each codeword transmission. Considering different temporal correlation conditions in both scenarios, substantial throughput increment is observed with feedback rates well below 1 bit per slot.

引用

页码：2282 / 2294

页数：13

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