DocumentCode :
28696
Title :
Energy-Aware Cooperation Strategy With Uncoordinated Group Relays for Delay-Sensitive Services
Author :
A-Long Jin ; Wei Song ; Peijian Ju ; Dizhi Zhou
Author_Institution :
Fac. of Comput. Sci., Univ. of New Brunswick, Fredericton, NB, Canada
Volume :
63
Issue :
5
fYear :
2014
fDate :
Jun-14
Firstpage :
2104
Lastpage :
2114
Abstract :
Due to channel fading and user mobility in wireless networks, quality-of-service (QoS) provisioning for multimedia services requires great effort. It is even more challenging to support the fast-growing multimedia services in a green manner. As a promising technique, cooperative communications make use of the broadcasting nature of the wireless medium to facilitate data transmission, and it can achieve energy saving. To support the delay-sensitive multimedia services in an energy-efficient manner, we consider a new framework in this paper where multiple source-destination pairs share a group of relays with an energy constraint. We also propose an effective uncoordinated cooperation strategy, which is based on the backoff timer. The theoretical performance bounds of the proposed strategy are derived with respect to the collision probability and the transmission success probability. As shown in the numerical and simulation results, the proposed strategy outperforms a probability-based uncoordinated strategy in terms of average packet delay, delay outage probability, and energy consumption. Further, we investigate the scalability of our proposed strategy and find that it can be deployed in a large-scale network.
Keywords :
broadcast communication; cooperative communication; data communication; delays; energy conservation; energy consumption; fading channels; multimedia communication; probability; quality of service; radio networks; telecommunication power management; QoS provisioning; broadcasting; channel fading; collision probability; cooperative communications; data transmission; delay outage probability; delay-sensitive multimedia services; delay-sensitive services; energy constraint; energy consumption; energy saving; energy-aware cooperation strategy; multimedia services; probability-based uncoordinated strategy; quality-of-service; scalability; source-destination pairs; theoretical performance bounds; transmission success probability; uncoordinated cooperation strategy; uncoordinated group relays; user mobility; wireless medium; wireless networks; Delays; Energy consumption; Green products; Multimedia communication; Quality of service; Relays; Wireless networks; Cooperative wireless networks; delay-sensitive services; energy efficiency; performance analysis; quality of service (QoS); scalability; uncoordinated cooperation strategy;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2014.2310708
Filename :
6763106
Link To Document :
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