Optimal and suboptimal relay selection and power allocation in multi-relay cooperative network

We study a cooperative communication scenario where multiple amplify-and-forward relays cooperate to transmit data from a source to destination. We discuss an optimal power allocation method to assign transmit powers to the source and relays in order to maximize achievable data rate of the system.We...

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Bibliographic Details
Published in2011 Second Asian Himalayas International Conference on Internet (AH-ICI) pp. 1 - 6
Main Authors Phuyal, U., Jha, S. C., Bhargava, V. K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2011
Subjects
Complexity theory
Cooperative communication
Distribution functions
Mobile communication
multi-relay system
optimal power allocation
relay selection
relay-based communication
Relays
Resource management
Signal to noise ratio
Throughput
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Summary:We study a cooperative communication scenario where multiple amplify-and-forward relays cooperate to transmit data from a source to destination. We discuss an optimal power allocation method to assign transmit powers to the source and relays in order to maximize achievable data rate of the system.We also propose less-complex suboptimal power allocation methods using various relay selection strategies. We provide simulation results to demonstrate performance of the optimal power allocation and suboptimal relay selection and power allocation schemes. We show that these suboptimal schemes perform close to optimal scheme and are more reasonable for practical implementation.
ISBN:9781457710872
1457710870
ISSN:1089-7801
1941-0131
DOI:10.1109/AHICI.2011.6113937