教師資料查詢 | 類別: 會議論文 | 教師: 張志勇 Chih-yung Chang (瀏覽個人網頁)

標題:MCDA:An Efficient Multi-Channel MAC Protocol for 802.11 Wireless LAN with Directional Antenna
學年93
學期2
發表日期2005/03/28
作品名稱MCDA:An Efficient Multi-Channel MAC Protocol for 802.11 Wireless LAN with Directional Antenna
作品名稱(其他語言)
著者Chang, Chih-Yung; Sun, Hao-Chun; Hsieh, Chen-Chi
作品所屬單位淡江大學資訊工程學系
出版者Los Alamitos, CaliforniaInstitute of Electrical and Electronics Engineers (IEEE)
會議名稱Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on
會議地點臺北縣, 臺灣
摘要IEEE 802.11 provides a contention based MAC protocol for single channel wireless environment. Extending IEEE 802.11 to a multi-channel environment will not only exploit the bandwidth utilization but also reduce the degree of contentions. Involving directional antenna in designing multichannel MAC protocol additionally increases the spatial reuse, allowing more communications proceeding in parallel. This paper proposes an efficient 802.11 Multi-Channel MAC protocol with Directional Antenna (MCDA). Since each station is only equipped with a single antenna, communicating pairs that progress their communications on data channels will unable to maintain the channel usage information which is only obtained from the control channel, raising the channel collision problem. The proposed protocol adopts mechanism of channel switch sequence (CSS) to resolve the channel collision problem and reduce the overhead in message exchange for switching channel.
According to the state management, MCDA then controls directional antenna transmitting data on a selected channel to exploit the opportunities of spatial reuse and maintain the fairness among communicating pairs. Simulation results show that the proposed MCDA protocol can largely improve the bandwidth utilization and throughput while the fairness could be maintained.
關鍵字Ad Hoc Network;IEEE802.11;MAC protocol;Multi-channel;directional antenna
語言英文
收錄於
會議性質國際
校內研討會地點淡水校園
研討會時間20050328~20050330
通訊作者
國別中華民國
公開徵稿Y
出版型式紙本
出處Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on, vol.2, pp.64-67
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