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Fuzzy-based cross-layer transmission scheme with QoS considerations for wireless mesh networks

Published: 21 June 2009 Publication History

Abstract

IEEE 802.11 wireless networks utilize a hard handoff scheme when a mobile station is travelling from one area of coverage to another within a transmission duration. When the station is running a real-time multimedia application receiving data from the wireless network, in each pair of neighboring MAPs, contention scheme is used to transmit data. The latency for successfully transmitting data is seriously lengthened so that the deadlines of data frames are missed with high probabilities. In this paper, we propose a fuzzy-based cross-layer transmission (FCLT) scheme with QoS considerations for IEEE 802.11 mesh wireless networks, which utilizes the grey model and the fuzzy theorem. In the handoff procedure, some ratio of real-time data frames will be relayed to the next MAP based on received signal strength indication of PHY layer and contention window of MAC layer, which can meet the minimal QoS requirements. By utilizing FCLT, the ratios of data frames missing deadlines will be significantly improved to meet timing requirements for real-time multimedia applications. We develop a simulation model to investigate the performance of FCLT. The capability of the proposed scheme is evaluated by a series of experiments, for which we have encouraging results.

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  • (2012)Channel switching control policy for wireless mesh networksJournal of Parallel and Distributed Computing10.1016/j.jpdc.2012.06.00872:10(1295-1305)Online publication date: 1-Oct-2012

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      cover image ACM Conferences
      IWCMC '09: Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
      June 2009
      1561 pages
      ISBN:9781605585697
      DOI:10.1145/1582379
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 21 June 2009

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      Author Tags

      1. QoS
      2. cross-layer
      3. fuzzy

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      • (2012)Channel switching control policy for wireless mesh networksJournal of Parallel and Distributed Computing10.1016/j.jpdc.2012.06.00872:10(1295-1305)Online publication date: 1-Oct-2012

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