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題名 Effective Bandwidth Allocation for WiMAX Mesh Network
作者 張宏慶
Jang,Hung-Chin;Lin,Wei-Ching
貢獻者 國立政治大學資訊科學系
關鍵詞 WiMAX Mesh Network
日期 2009-07
上傳時間 27-May-2010 16:51:29 (UTC+8)
摘要 The aim of this paper is to reduce the media access delay in a WiMAX mesh network. We observe that as the number of subscriber stations (SS) in a neighborhood increases, the processes of transmission opportunity (TO) competition and 3- way handshake are easy to fail. This may degrade transmission efficiency and increase packet transmission delay. Besides, the minislot allocation defined in the WiMAX mesh mode may cause many lower priority services reserve earlier minislots than that of higher priority services like rtPS. This may cause great negative impact on delay-sensitive traffic. In this paper, we design a QoS classifier to enqueue packets according to different QoS service classes, present a dynamic holdoff exponent mechanism to reduce control subframe delay, and propose a Neighborhood-Based Minislot Allocation (NBMA) mechanism to reduce data subframe delay. Simulations show that the proposed methodology outperforms that of IEEE 802.16 and Baye’s DynExp in delay, jitter and throughput.
關聯 Journal of Systemics, Cybernetics & Informatics,8(2),36-40
資料類型 article
dc.contributor 國立政治大學資訊科學系en_US
dc.creator (作者) 張宏慶zh_TW
dc.creator (作者) Jang,Hung-Chin;Lin,Wei-Ching-
dc.date (日期) 2009-07en_US
dc.date.accessioned 27-May-2010 16:51:29 (UTC+8)-
dc.date.available 27-May-2010 16:51:29 (UTC+8)-
dc.date.issued (上傳時間) 27-May-2010 16:51:29 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/39837-
dc.description.abstract (摘要) The aim of this paper is to reduce the media access delay in a WiMAX mesh network. We observe that as the number of subscriber stations (SS) in a neighborhood increases, the processes of transmission opportunity (TO) competition and 3- way handshake are easy to fail. This may degrade transmission efficiency and increase packet transmission delay. Besides, the minislot allocation defined in the WiMAX mesh mode may cause many lower priority services reserve earlier minislots than that of higher priority services like rtPS. This may cause great negative impact on delay-sensitive traffic. In this paper, we design a QoS classifier to enqueue packets according to different QoS service classes, present a dynamic holdoff exponent mechanism to reduce control subframe delay, and propose a Neighborhood-Based Minislot Allocation (NBMA) mechanism to reduce data subframe delay. Simulations show that the proposed methodology outperforms that of IEEE 802.16 and Baye’s DynExp in delay, jitter and throughput.-
dc.language en-USen_US
dc.language.iso en_US-
dc.relation (關聯) Journal of Systemics, Cybernetics & Informatics,8(2),36-40en_US
dc.subject (關鍵詞) WiMAX Mesh Networken_US
dc.title (題名) Effective Bandwidth Allocation for WiMAX Mesh Networken_US
dc.type (資料類型) articleen