Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2
碩士 === 逢甲大學 === 資訊工程所 === 92 === IEEE 802.11 Wireless Local Area Network (WLAN) Medium Access Control (MAC) layer provides a fair access protocol to the shared wireless medium based on Collision Sense Multiple Access with Collision Avoidance (CSMA/CA). It is a contention-based mechanism to access th...
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ndltd-TW-092FCU053921092015-10-13T13:01:03Z http://ndltd.ncl.edu.tw/handle/91652872061794423773 Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 使用網路模擬軟體NS-2在IEEE802.11碰撞解決機制之效能比較 Shuo-Yu Chang 張碩佑 碩士 逢甲大學 資訊工程所 92 IEEE 802.11 Wireless Local Area Network (WLAN) Medium Access Control (MAC) layer provides a fair access protocol to the shared wireless medium based on Collision Sense Multiple Access with Collision Avoidance (CSMA/CA). It is a contention-based mechanism to access the medium. IEEE 802.11 physical layers (PHYs) support multiple transmission rates. The transmission rate should be chosen in an adaptive manner since the wireless channel condition. If the stations refer to access point (AP) with a low data rate, data packets may be delivered slower than high data rate stations. This will reduce the usage of bandwidth and system performance in the wireless environment. A mechanism was proposed to assign the backoff time slot dynamically. In this thesis, we evaluated the mechanism by using network simulator version 2 (NS-2). The performance of the new mechanism was compared with the conventional mechanism. It was observed that the proposed mechanism performs better throughput than the original mechanism. Wei-Tsong Lee Jim-Min Lin 李維聰 林志敏 2004 學位論文 ; thesis 63 en_US |
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碩士 === 逢甲大學 === 資訊工程所 === 92 === IEEE 802.11 Wireless Local Area Network (WLAN) Medium Access Control (MAC) layer provides a fair access protocol to the shared wireless medium based on Collision Sense Multiple Access with Collision Avoidance (CSMA/CA). It is a contention-based mechanism to access the medium. IEEE 802.11 physical layers (PHYs) support multiple transmission rates. The transmission rate should be chosen in an adaptive manner since the wireless channel condition. If the stations refer to access point (AP) with a low data rate, data packets may be delivered slower than high data rate stations. This will reduce the usage of bandwidth and system performance in the wireless environment. A mechanism was proposed to assign the backoff time slot dynamically. In this thesis, we evaluated the mechanism by using network simulator version 2 (NS-2). The performance of the new mechanism was compared with the conventional mechanism. It was observed that the proposed mechanism performs better throughput than the original mechanism.
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Wei-Tsong Lee |
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Wei-Tsong Lee Shuo-Yu Chang 張碩佑 |
author |
Shuo-Yu Chang 張碩佑 |
spellingShingle |
Shuo-Yu Chang 張碩佑 Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
author_sort |
Shuo-Yu Chang |
title |
Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
title_short |
Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
title_full |
Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
title_fullStr |
Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
title_full_unstemmed |
Performance Comparisons of Collision Resolution Mechanism in IEEE 802.11 Using Network Simulator NS-2 |
title_sort |
performance comparisons of collision resolution mechanism in ieee 802.11 using network simulator ns-2 |
publishDate |
2004 |
url |
http://ndltd.ncl.edu.tw/handle/91652872061794423773 |
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