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    政大機構典藏 > 商學院 > 資訊管理學系 > 會議論文 >  Item 140.119/75637
    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/75637


    Title: Network status detection-based dynamic adaptation of contention window in IEEE 802.11p
    Authors: Jang, Hung-Chin;Feng, W.-C.
    張宏慶
    Contributors: 資科系
    Keywords: Contention window;Contention window size;Delay Time;Dynamic adaptations;IEEE 802.11s;Large-scale network;MAC layer;Media access control;Message exchange;Network congestions;Network status;Packet collisions;Rapid changes;RTS/CTS;Traffic safety;Vehicular ad hoc networks;Access control;Electric network topology;Global positioning system;Security systems;Standards;Ad hoc networks
    Date: 2010
    Issue Date: 2015-06-10 12:41:48 (UTC+8)
    Abstract: In recent years the research on Vehicular Ad Hoc Network (VANET) has been paid much attention due to the development of wireless network becoming mature, people think highly of traffic safety issue, the popularity of Global Positioning System (GPS), promising applications of VANET being exploited. However, VANET has the essential property of rapid change of large scale network topology. Besides, the vehicles distributed over the road usually causes serious signal collisions and interferences. Thus, it calls for special concern to deal with the performances of throughput, collision and delay. In this paper we propose a Detection-Based MAC mechanism by modifying RTS/CTS to detect network congestion through message exchange and predict number of competing nodes. Both these information is used to dynamically adjust contention window size. Simulations focus on the MAC layer of IEEE 802.11p and the results show that the proposed method is able to effectively increase overall throughput, reduce packet collision rate and delay time. © 2010 IEEE.
    Relation: IEEE Vehicular Technology Conference,2010, 論文編號 5494183
    Data Type: conference
    DOI 連結: http;//dx.doi.org/10.1109/VETECS.2010.5494183
    DOI: 10.1109/VETECS.2010.5494183
    Appears in Collections:[資訊管理學系] 會議論文

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