The Performances Study of EDCF with Block_Ack in WLANs

Abstract : IEEE 802.11e Enhanced Distributed Coordination Function (EDCF) is a new wireless technology in wireless local area networks (WLANs). It defines a new supplement to the existing IEEE 802.11 MAC protocol. In IEEE 802.11e EDCF, the aim is providing a QoS support in WLANs. While the system services different Access categories (ACs), IEEE 802.11e EDCF does not perform well under high load conditions. In order to improve the efficiency, we pay attention to the EDCF of IEEE 802.11e with Block_Ack mechanism. We first proposed a markov chain model and studied the behavior. We extend the model to support IEEE 802.11e EDCF, and presented a more accurate analysis under non-ideal channel environment. We also compared it with that without Block_Ack mechanism under channel error environment.
Keywords : EDCF Acs QoS Block_Ack
Type de document :
Communication dans un congrès
James J. Park; Albert Zomaya; Sang-Soo Yeo; Sartaj Sahni. 9th International Conference on Network and Parallel Computing (NPC), Sep 2012, Gwangju, South Korea. Springer, Lecture Notes in Computer Science, LNCS-7513, pp.328-335, 2012, Network and Parallel Computing. 〈10.1007/978-3-642-35606-3_39〉
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Chien-Erh Weng, Chien-Hung Chen, Chiung-Hsing Chen, Jyh-Horng Wen. The Performances Study of EDCF with Block_Ack in WLANs. James J. Park; Albert Zomaya; Sang-Soo Yeo; Sartaj Sahni. 9th International Conference on Network and Parallel Computing (NPC), Sep 2012, Gwangju, South Korea. Springer, Lecture Notes in Computer Science, LNCS-7513, pp.328-335, 2012, Network and Parallel Computing. 〈10.1007/978-3-642-35606-3_39〉. 〈hal-01551375〉

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