Paper Info
Title
Analysis of Network Coded HARQ for Multiple Unicast Flows
Abstract
In this paper, we consider network coded (NCed) Hybrid-ARQ (HARQ) for multiple unicast flows. The main contribution of the paper is the derivation of throughput expressions for NCed HARQ with arbitrary number of users in identical i.i.d. channels amid packets for all users. We apply the result to Rayleigh fading channels and two packet combining schemes: incremental redundancy (IR) and chase combining (CC). We verify the analytical results with simulations and observe substantial SNR improvements over NCed ARQ and HARQ. The SNR gains in the moderate/high and low throughput regimes are mainly due to network coding and packet combining, respectively. For low/moderate SNRs, NCed HARQ with IR surpasses the CC performance. In addition, we introduce a novel re-transmission strategy that makes the network coding more efficient at low SNR.
Year
DOI
Venue
2010
10.1109/TCOMM.2012.121112.110202
IEEE Transactions on Communications
Keywords
Field
DocType
rayleigh channels,diversity reception,cc performance,channels amid packets,automatic repeat request (arq),network coding,multiple unicast flows,retransmission strategy,telecommunication network reliability,ir,hybrid arq,rayleigh fading channels,nced,hybrid-arq,moderate-high regimes,incremental redundancy,packet combining,throughput expression,redundancy,automatic repeat request,network coded harq,low throughput regimes,chase combining,snr improvements,identical iid channels,cooperative systems,throughput,unicast,fading,communication systems,encoding,decoding,signal to noise ratio
Hybrid automatic repeat request,Linear network coding,Rayleigh fading,Computer science,Network packet,Algorithm,Computer network,Electronic engineering,Automatic repeat request,Redundancy (engineering),Throughput,Unicast
Conference
Volume
Issue
ISSN
61
2
0090-6778
ISBN
Citations 
PageRank 
978-1-4244-6402-9
15
0.68
References 
Authors
11
4
Name
Order
Citations
PageRank
Peter Larsson1464.30
Besma Smida27719.63
Toshiaki Koike-Akino361067.09
Tarokh, Vahid41435207.79