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    题名: Design and Implementation of Subchannelization Scheduler in IEEE 802.16 Broadband Wireless Access Systems
    作者: Tseng, Hsien-wei;Chou, Yen-hsih;Chuang, Ming-hsueh;李揚漢;Lee, Yang-han;Sheu, Shiann-tsong;詹益光;Jan, Yih-guang
    贡献者: 淡江大學電機工程學系
    关键词: IEEE 802.16;subchannelization;scheduling;Genetic Algorithm (GA)
    日期: 2008-09
    上传时间: 2013-07-11 11:56:57 (UTC+8)
    出版者: Taipei : Chinese Institute of Chemical Engineers
    摘要: In this paper we propose a method of using a heuristic Genetic Algorithm (GA) to solve the Fast Fourier Transform subchannelization scheduling (FFTSS) problem in IEEE 802.16 broadband wireless access systems. In such a multi-user transmission system with quality of service (QoS) requirements, data from different users should be quickly scheduled and transmitted within the shortest transmission time period. In this paper, we propose a GA-based scheduler that will search the best configurations of the uplink and/or downlink sub-frames in order to obtain the optimal system throughput as well as quality of services. Due to the slow convergence of conventional GAs, we design a novel hardware architecture to accelerate the processing speed of GA which is used for scheduling the Down Link (DL) sub-frames. We then describe the procedure of using Field-Programmable Gate-Array (FPGA) to implement the designed hardware to verify the convergence of the algorithm. With this hardware implementation, the proposed method indeed helps us to construct a fast optimization tool to be applied in broadband wireless communication systems.
    關聯: Journal of the Chinese Institute of Engineers=中國工程學刊 31(6), pp.967-976
    DOI: 10.1080/02533839.2008.9671451
    显示于类别:[電機工程學系暨研究所] 期刊論文

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