Hybrid ARQ protocols using space-time codes

被引：0

作者：

Nguyen, AV ^{[1
]}

Ingram, MA ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

IEEE 54TH VEHICULAR TECHNOLOGY CONFERENCE, VTC FALL 2001, VOLS 1-4, PROCEEDINGS | 2001年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Automatic repeat-request (ARQ) protocols using transmit diversity are investigated in this paper. The performance of space-time codes (STC) in a pure ARQ protocol (ST-ARQ) is first examined. Two hybrid ARQ schemes using STC are then proposed: space-time hybrid ARQ (ST-HARQ) and turbo space-time hybrid ARQ (TST-HARQ). For the ST-HARQ scheme, the previous transmitted packets are combined with the current received packet. In this scheme, the diversity gain is increased with every retransmission resulting in a higher probability of an accepted packet. For TST-HARQ, the transmitted packets are code combined and iteratively decoded. Performance analysis of ST-ARQ and ST-HARQ will be approximated and shown to agree sell with simulated results. TST-HARQ will be shown to have the highest throughput efficiency compared to ST-HARQ and ST-ARQ in quasi-static and fast flat Rayleigh fading channels.

引用

页码：2364 / +

页数：3

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