Research Article
Outage Probability for ARQ Decode-and-Forward Relaying under Packet-Rate Fading
@INPROCEEDINGS{10.1007/978-3-642-11723-7_58, author={Sangkook Lee and Weifeng Su and Stella Batalama and John Matyjas}, title={Outage Probability for ARQ Decode-and-Forward Relaying under Packet-Rate Fading}, proceedings={1st International ICST Workshop on Cross-layer Design in Wireless Mobile Ad hoc Networks}, proceedings_a={CROSS-LAYER}, year={2012}, month={7}, keywords={Automatic-repeat-request (ARQ) protocol cooperative decode-and-forward relaying outage probability}, doi={10.1007/978-3-642-11723-7_58} }- Sangkook Lee
Weifeng Su
Stella Batalama
John Matyjas
Year: 2012
Outage Probability for ARQ Decode-and-Forward Relaying under Packet-Rate Fading
CROSS-LAYER
Springer
DOI: 10.1007/978-3-642-11723-7_58
Abstract
In this paper, a new analytical approach is developed for the evaluation of the outage probability of decode-and-forward (DF) automatic-repeat-request (ARQ) relaying under packet-rate fading (fast fading) channels. Based on this approach, a closed-form asymptotically tight (as SNR → ∞) approximation of the outage probability is derived, and the diversity order of the DF cooperative ARQ relay scheme is shown to be equal to 2 − 1, where is the maximum number of ARQ retransmissions. The closed-form expression clearly shows that the achieved diversity is partially due to the DF cooperative relaying and partially due to the fast fading nature of the channels (temporal diversity). Numerical and simulation studies illustrate the theoretical developments.
