Smart relaying for selection combining based decode-and-forward cooperative networks

Zhao, Dawei, Zhao, Honglin, Jia, Min, and Xiang, Wei (2014) Smart relaying for selection combining based decode-and-forward cooperative networks. IEEE Communications Letters, 18 (1). pp. 74-77.

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This letter proposes three smart relaying strategies, including power allocation, continuous power control, and discrete power control strategies, to mitigate the error propagation problem for single-relay decode-and-forward cooperative networks using selection combining at the destination. By fully exploiting the channel state information at the relay, these relaying strategies can optimize transmit power so as to minimize the bit error rate of the system, as well as allowing the source and relay nodes to use different modulation levels to improve spectral efficiency. Simulation results demonstrate that the proposed smart relaying strategies can effectively mitigate erroneous relaying and achieve diversity orders close to two.

Item ID: 43302
Item Type: Article (Research - C1)
ISSN: 1558-2558
Keywords: cooperative diversity, decode-and-forward, error propagation, power allocation, power control, selection combining
Funders: National Natural Science Foundation of China (NNSFC)
Projects and Grants: NNSFC grant no. 61201143
Date Deposited: 24 Feb 2016 07:47
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%
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