Diversity Combining ARQ over the m(\geq 2)-ary Unidirectional Channel

TitleDiversity Combining ARQ over the m(\geq 2)-ary Unidirectional Channel
Publication TypeJournal Article
Year of Publication2009
AuthorsElarief, N., and B. Bose
JournalIEEE Transactions on Computers
Volume58
Issue8
Pagination1026 - 1034
Date Published08/2009
ISSN0018-9340
KeywordsARQ, diversity combining, error control, error detection, unidirectional error
Abstract

In diversity combining automatic repeat request (ARQ), erroneous packets are combined together forming a single, more reliable, packet. In this paper, we give a diversity combining scheme for the m-ary unidirectional channel. A system using the given scheme with a t-unidirectional error detecting code is able to correct up to Emax = [t/2] unidirectional errors. Simulation results show that the underlined diversity combining protocol significantly increases the channel throughput over plain ARQ. To use the given scheme, the decoder should be able to decide the error type (increasing or decreasing). Hence, we give simple techniques to make this decision for various unidirectional error detecting codes.

DOI10.1109/TC.2009.59
Short TitleIEEE Trans. Comput.