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Performance Analysis of Resource Allocation Scheme for WiBro Portable Internet System  

Yeou Hye-jin (이화여자대학교 정보통신학과 무선멀티미디어통신 연구실)
Yang Joo-young (이화여자대학교 정보통신학과 무선멀티미디어통신 연구실)
Kim Jeong-ho (이화여자대학교 정보통신학과 무선멀티미디어통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.6A, 2005 , pp. 455-464 More about this Journal
Abstract
In this paper, we implement resource allocation algorithm based on the WiBro system which including OFDMA, TDD, and we propose the algorithm in order to increase bandwidth efficiency. In this algorithm, data is allocated from the subchannel which has large channel gain to the subchannel which has small channel gain with maximum modulation order. The moment total power is more than available power, the modulation order of the latest subchannel is adjusted. The problem of decreasing of throughput in large channel attenuation environment is solved by allocating additional power. Still, this algorithm has large bandwidth efficiency.
Keywords
WiBro; subchannel allocation; power allocation; throughput; bandwidth efficiency;
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