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Multicast Power Control for VoIP in Mobile WiMAX

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Authors
Yeom, Jae-Heung; Lee, Yong-Hwan
Issue Date
2009-04
Citation
VTC Spring 2009. IEEE 69th Vehicular Technology Conference, 2009
Keywords
IEEE 802.16emulticastOFDMApower controlVoIPWiMAX
Abstract
In this paper, we consider the service of voice over i nternet protocol (VoIP) traffic with the service of non-real time traffic in the mobile WiMAX system. VoIP traffic is delay-sensitive and requires transmission at an almost constant rate. As a consequence, it may require a large amount of resource when users are in poor channel condition, leading to resource outage problem. To alleviate this problem, we consider the allocation of power according to the VoIP traffic load as well as the channel condition. When the VoIP traffic is fully loaded, the power is allocated to maximize the VoIP capacity. Otherwise, it is allocated to maximize the data throughput. Finally, the performance of the proposed scheme is verified by computer simulation.
Language
English
URI
http://www.ieeevtc.org/vtc2009spring

http://hdl.handle.net/10371/7532
DOI
https://doi.org/10.1109/VETECS.2009.5073694
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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