A Modified Medium Access Control Algorithm for Systems with Iterative Decoding

Inkyu Lee; Wonjun Lee

doi:10.1109/TWC.2006.1611047

A Modified Medium Access Control Algorithm for Systems with Iterative Decoding

Research output: Contribution to journal › Article › peer-review

Abstract

Efficient transmission methods for fading radio channels often require an iterative decoder. This is for example the case for systems using turbo codes. Receiver decoder iterations could potentially lead to a latency problem which impacts the performance of the medium access control protocol. In this paper, we present modifications based on the carrier sense multiple access with collision avoidance (CSMA/CA) medium access control (MAC) protocol to accommodate the increased latency in the iterative processing. One area of applications is wireless local area networks (WLANs) with high data rate. The simulation results performed in the IEEE 802.11a WLAN environment by replacing the 802.11a's convolutional coding with turbo coding demonstrate that the proposed algorithm provides a throughput gain over the conventional method.

Original language	English
Pages (from-to)	270-273
Number of pages	4
Journal	IEEE Transactions on Wireless Communications
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/TWC.2006.1611047
Publication status	Published - 2006 Feb

Keywords

CSMA/CA
Medium access control
WLAN
iterative decoding

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TWC.2006.1611047

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title = "A Modified Medium Access Control Algorithm for Systems with Iterative Decoding",

abstract = "Efficient transmission methods for fading radio channels often require an iterative decoder. This is for example the case for systems using turbo codes. Receiver decoder iterations could potentially lead to a latency problem which impacts the performance of the medium access control protocol. In this paper, we present modifications based on the carrier sense multiple access with collision avoidance (CSMA/CA) medium access control (MAC) protocol to accommodate the increased latency in the iterative processing. One area of applications is wireless local area networks (WLANs) with high data rate. The simulation results performed in the IEEE 802.11a WLAN environment by replacing the 802.11a's convolutional coding with turbo coding demonstrate that the proposed algorithm provides a throughput gain over the conventional method.",

keywords = "CSMA/CA, Medium access control, WLAN, iterative decoding",

author = "Inkyu Lee and Wonjun Lee",

note = "Funding Information: Manuscript received May 11, 2003; revised April 12, 2004; accepted May 7, 2005. The associate editor coordinating the review of this letter and approving it for publication was T. Boucouvalas. This research was supported by the Ministry of Information and Communication (MIC), Korea, under the Information Technology Research Center (ITRC) support program, supervised by the Institute of Information Technology Assessment (IITA). I. Lee and W. Lee are with Korea University, Seoul, Korea (e-mail: {inkyu, wlee}@korea.ac.kr). C.-E. Sundberg is with SundComm, USA (e-mail: cews@ieee.org). S. Choi is with Seoul National University, Seoul, Korea (e-mail: schoi@snu.ac.kr). Digital Object Identifier 10.1109/TWC.2006.02003.",

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N2 - Efficient transmission methods for fading radio channels often require an iterative decoder. This is for example the case for systems using turbo codes. Receiver decoder iterations could potentially lead to a latency problem which impacts the performance of the medium access control protocol. In this paper, we present modifications based on the carrier sense multiple access with collision avoidance (CSMA/CA) medium access control (MAC) protocol to accommodate the increased latency in the iterative processing. One area of applications is wireless local area networks (WLANs) with high data rate. The simulation results performed in the IEEE 802.11a WLAN environment by replacing the 802.11a's convolutional coding with turbo coding demonstrate that the proposed algorithm provides a throughput gain over the conventional method.

AB - Efficient transmission methods for fading radio channels often require an iterative decoder. This is for example the case for systems using turbo codes. Receiver decoder iterations could potentially lead to a latency problem which impacts the performance of the medium access control protocol. In this paper, we present modifications based on the carrier sense multiple access with collision avoidance (CSMA/CA) medium access control (MAC) protocol to accommodate the increased latency in the iterative processing. One area of applications is wireless local area networks (WLANs) with high data rate. The simulation results performed in the IEEE 802.11a WLAN environment by replacing the 802.11a's convolutional coding with turbo coding demonstrate that the proposed algorithm provides a throughput gain over the conventional method.

KW - CSMA/CA

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A Modified Medium Access Control Algorithm for Systems with Iterative Decoding

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Keywords

ASJC Scopus subject areas

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