A Fixed Backoff-Time Switching Method for CSMA/CA Protocol in Wireless Mesh Networks
| Autor: | Toru Nakanishi, Shigeto Tajima, Sritrusta Sukaridhoto, Kan Watanabe, Nobuo Funabiki |
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| Rok vydání: | 2013 |
| Předmět: |
business.product_category
Wireless mesh network Computer Networks and Communications Computer science business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Mesh networking QualNet Network topology Scalability Internet access Wireless Electrical and Electronic Engineering business Software Carrier sense multiple access with collision avoidance Computer network |
| Zdroj: | IEICE Transactions on Communications. :1019-1029 |
| ISSN: | 1745-1345 0916-8516 |
| Popis: | SUMMARY As a flexible and cost-efficient scalable Internet access network, we studied architectures, protocols, and design optimizations of the Wireless Internet-access Mesh NETwork (WIMNET) .W IMNET is composed of multiple access points (APs) connected through multihop wireless communications on IEEE 802.11 standards. The increasing popularity of real-time applications such as IP-phones and IP-TV means that they should be supported in WIMNET. However, the contention resolution mechanism using a random backoff-time in the CSMA/CA protocol of 802.11 standards is not sufficient for handling real-time traffic in multihop wireless communications. In this paper, we propose a Fixed Backoff-time Switching (FBS) method for the CSMA/CA protocol to improve the real-time traffi cp erformance in WIMNET by giving the necessary activation chances to each link. We implement our proposal on the QualNet simulator, and verify its effectiveness through simulations on three network topologies with four scenarios. |
| Databáze: | OpenAIRE |
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