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Design and analysis of an acknowledgment-aware asynchronous MPR MAC protocol for distributed WLANs
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Mukhopadhyay, Arpan, Mehta, Neelesh B. and Srinivasan, Vikram (2013) Design and analysis of an acknowledgment-aware asynchronous MPR MAC protocol for distributed WLANs. IEEE Transactions on Wireless Communications, 12 (5). pp. 2068-2079. doi:10.1109/TWC.2013.032513.120429
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Official URL: https://doi.org/10.1109/TWC.2013.032513.120429
Abstract
Multi-packet reception (MPR) promises significant throughput gains in wireless local area networks (WLANs) by allowing nodes to transmit even in the presence of ongoing transmissions in the medium. However, the medium access control (MAC) layer must now be redesigned to facilitate – rather than discourage – these overlapping transmissions.We investigate asynchronous MPR MAC protocols, which successfully accomplish this by controlling the node behavior based on the number of ongoing transmissions in the channel. The protocols use the backoff timer mechanism of the distributed coordination function (DCF), which makes them distributed and practically appealing. We first highlight a unique problem of acknowledgment (ACK) delays, which arises in asynchronous MPR, and investigate a solution that modifies the medium access rules to reduce these delays and increase system throughput in the single receiver scenario. We develop a general renewal-theoretic fixed-point analysis of the solution and derive expressions for its saturation throughput, packet dropping probability, and average head-ofline packet delay. We also model and analyze the practical scenario in which nodes may incorrectly estimate the number of ongoing transmissions.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||||||
Library of Congress Subject Headings (LCSH): | Wireless Internet , Wireless LANs , IEEE 802.11 (Standard) | ||||||||
Journal or Publication Title: | IEEE Transactions on Wireless Communications | ||||||||
Publisher: | IEEE | ||||||||
Official Date: | May 2013 | ||||||||
Dates: |
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Volume: | 12 | ||||||||
Number: | 5 | ||||||||
Page Range: | pp. 2068-2079 | ||||||||
DOI: | 10.1109/TWC.2013.032513.120429 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Reuse Statement (publisher, data, author rights): | © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 16 August 2019 | ||||||||
Date of first compliant Open Access: | 19 August 2019 |
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