Design and Implementation of Subchannelization Scheduler in IEEE 802.16 Broadband Wireless Access Systems
學年 97
學期 1
出版(發表)日期 2008-09-01
作品名稱 Design and Implementation of Subchannelization Scheduler in IEEE 802.16 Broadband Wireless Access Systems
作品名稱(其他語言)
著者 Tseng, Hsien-wei; Chou, Yen-hsih; Chuang, Ming-hsueh; 李揚漢; Lee, Yang-han; Sheu, Shiann-tsong; 詹益光; Jan, Yih-guang
單位 淡江大學電機工程學系
出版者 Taipei : Chinese Institute of Chemical Engineers
著錄名稱、卷期、頁數 Journal of the Chinese Institute of Engineers=中國工程學刊 31(6), pp.967-976
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.
關鍵字 IEEE 802.16;subchannelization;scheduling;Genetic Algorithm (GA)
語言 en
ISSN 0253-3839
期刊性質 國內
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產學合作
通訊作者
審稿制度
國別 TWN
公開徵稿
出版型式 紙本
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