TY - JOUR
T1 - Cooperative diversity in the presence of impulsive noise
AU - Al-Dharrab, Suhail
AU - Uysal, Murat
N1 - Funding Information:
This paper was presented in part at IEEE WCNC’09, Budapest, Hungary, April 2009. The work of M. Uysal is supported, in part, by an NSERC (Natural Sciences and Engineering Research Council of Canada) Collaborative Research and Development Grant (CRDPJ348999-06).
PY - 2009/9
Y1 - 2009/9
N2 - Although there already exists a rich literature on cooperative diversity, current results are mainly restricted to the conventional assumption of additive white Gaussian noise (AWGN). AWGN model realistically represents the thermal noise at the receiver, but ignores the impulsive nature of atmospheric noise, electromagnetic interference, or man-made noise which might be dominant in many practical applications. In this paper, we investigate the performance of cooperative communication over Rayleigh fading channels in the presence of impulsive noise modeled by Middleton Class A noise. Specifically, we consider a multi-relay network with amplify-and-forward relaying. Through the derivations of pairwise error probability, we quantify the diversity advantages. Based on the minimization of a union bound on the error rate performance, we formulate optimal power allocation schemes and demonstrate significant performance gains over their counterparts with equal power allocation. An extensive Monte Carlo simulation is also presented to illustrate the performance of cooperative schemes in various impulsive environments.
AB - Although there already exists a rich literature on cooperative diversity, current results are mainly restricted to the conventional assumption of additive white Gaussian noise (AWGN). AWGN model realistically represents the thermal noise at the receiver, but ignores the impulsive nature of atmospheric noise, electromagnetic interference, or man-made noise which might be dominant in many practical applications. In this paper, we investigate the performance of cooperative communication over Rayleigh fading channels in the presence of impulsive noise modeled by Middleton Class A noise. Specifically, we consider a multi-relay network with amplify-and-forward relaying. Through the derivations of pairwise error probability, we quantify the diversity advantages. Based on the minimization of a union bound on the error rate performance, we formulate optimal power allocation schemes and demonstrate significant performance gains over their counterparts with equal power allocation. An extensive Monte Carlo simulation is also presented to illustrate the performance of cooperative schemes in various impulsive environments.
KW - Cooperative diversity
KW - Impulsive noise
KW - Pairwise error probability
KW - Power allocation
KW - Spacetime block codes
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U2 - 10.1109/TWC.2009.081290
DO - 10.1109/TWC.2009.081290
M3 - Article
AN - SCOPUS:70350325452
SN - 1536-1276
VL - 8
SP - 4730
EP - 4739
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 9
M1 - 5285195
ER -