Using Channel Output Feedback to Increase Throughput in Hybrid-ARQ

Autor:	Agrawal, Mayur, Chance, Zachary, Love, David J., Balakrishnan, Venkataramanan
Rok vydání:	2011
Předmět:	Computer Science - Information Theory
Druh dokumentu:	Working Paper
DOI:	10.1109/TSP.2012.2213079
Popis:	Hybrid-ARQ protocols have become common in many packet transmission systems due to their incorporation in various standards. Hybrid-ARQ combines the normal automatic repeat request (ARQ) method with error correction codes to increase reliability and throughput. In this paper, we look at improving upon this performance using feedback information from the receiver, in particular, using a powerful forward error correction (FEC) code in conjunction with a proposed linear feedback code for the Rayleigh block fading channels. The new hybrid-ARQ scheme is initially developed for full received packet feedback in a point-to-point link. It is then extended to various different multiple-antenna scenarios (MISO/MIMO) with varying amounts of packet feedback information. Simulations illustrate gains in throughput. Comment: 30 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1104.2861 Zobrazit plný text záznamu View this record from Arxiv