https://scholars.lib.ntu.edu.tw/handle/123456789/115978
標題: | Multi-rate throughput optimization for wireless local area network anomaly problem | 作者: | Kuo, Yu-Liang Lai, Kun-Wei YEONG-SUNG LIN Wen, Yean-Fu Wu, E.H.K. GEN-HUEY CHEN |
公開日期: | 十月-2005 | 起(迄)頁: | - | 來源出版物: | 2nd International Conference on Broadband Networks | 摘要: | Due to varying wireless channel conditions, the IEEE 802.11 wireless local area network (WLAN) standard supports multiple modulation types to accommodate the tradeoff between data rate and bit error rate. In [9], Heusse, Rousseau, Berger-Sabbatel and Duda theoretically analyzed a performance anomaly when multi-rate stations with different modulation types exist in IEEE 802.11 WLANs. The performance anomaly is: the aggregate throughput of those stations transmitting at a higher data rate will dramatically degrade below the same level as that of those stations transmitting at a lower data rate. In this paper, we address the anomaly problem and formulate a nonlinear mixed integer programming problem to maximize the total aggregate throughput of all stations subject to that the channel occupancy times among the stations transmitting at different data rates are kept at a fairness ratio. With its aid, a single-hop WLAN can dynamically accommodate the resource access usage to maximize the system throughput in varying fading environments. We prove that the optimization problem is intractable and propose a heuristic solution based on a penalty function with gradient-based approach to solve it. We show the effectiveness of the approach via computational experiments and provide some useful guidelines to regulate the parameters needed for the approach. © 2005 IEEE. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200704191001197 https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847081252&doi=10.1109%2fICBN.2005.1589664&partnerID=40&md5=86329c19554a03a2241d0f7142a9eee3 |
其他識別: | N/A | DOI: | 10.1109/ICBN.2005.1589664 | SDG/關鍵字: | Computational experiments; Heuristic solution; Wireless local area network (WLAN); Bit error rate; Communication channels (information theory); Integer programming; Optimization; Problem solving; Standards; Telecommunication networks |
顯示於: | 資訊工程學系 |
檔案 | 描述 | 大小 | 格式 | |
---|---|---|---|---|
01589664.pdf | 442.82 kB | Adobe PDF | 檢視/開啟 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。