Dynamic Offset Contention Window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks

Tae Hyung Kim; Ludger Marwitz; Dong Ku Kim

Dynamic Offset Contention Window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks

Tae Hyung Kim, Ludger Marwitz, Dong Ku Kim

Department of Electrical and Electronic Engineering

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

1 Citation (Scopus)

Abstract

To differentiate services for various traffic categories (TCs) in 802.11eD.2.0 [1], TCs possess different minimum contention window (CW_min) values, which are static over duration. Performances of low priority traffics (FTP) with higher CW_min values are suppressed even during absence of high priority traffics (video and voice). In this paper, we propose a modified backoff scheme called Dynamic Offset Contention Window (DOCW) algorithm, which dynamically adjusts CW values of traffics to network conditions. It is shown by simulations that the proposed algorithm enhances throughputs of low priority traffics where QoS is provided as well.

Original language	English
Pages (from-to)	162-172
Number of pages	11
Journal	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	2524
Publication status	Published - 2003

All Science Journal Classification (ASJC) codes

Theoretical Computer Science
Computer Science(all)

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title = "Dynamic Offset Contention Window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks",

abstract = "To differentiate services for various traffic categories (TCs) in 802.11eD.2.0 [1], TCs possess different minimum contention window (CWmin) values, which are static over duration. Performances of low priority traffics (FTP) with higher CWmin values are suppressed even during absence of high priority traffics (video and voice). In this paper, we propose a modified backoff scheme called Dynamic Offset Contention Window (DOCW) algorithm, which dynamically adjusts CW values of traffics to network conditions. It is shown by simulations that the proposed algorithm enhances throughputs of low priority traffics where QoS is provided as well.",

author = "Kim, {Tae Hyung} and Ludger Marwitz and Kim, {Dong Ku}",

year = "2003",

language = "English",

volume = "2524",

pages = "162--172",

journal = "Lecture Notes in Computer Science",

issn = "0302-9743",

publisher = "Springer Verlag",

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Dynamic Offset Contention Window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks. / Kim, Tae Hyung; Marwitz, Ludger; Kim, Dong Ku.

In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 2524, 2003, p. 162-172.

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

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T1 - Dynamic Offset Contention Window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks

AU - Kim, Tae Hyung

AU - Marwitz, Ludger

AU - Kim, Dong Ku

PY - 2003

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AB - To differentiate services for various traffic categories (TCs) in 802.11eD.2.0 [1], TCs possess different minimum contention window (CWmin) values, which are static over duration. Performances of low priority traffics (FTP) with higher CWmin values are suppressed even during absence of high priority traffics (video and voice). In this paper, we propose a modified backoff scheme called Dynamic Offset Contention Window (DOCW) algorithm, which dynamically adjusts CW values of traffics to network conditions. It is shown by simulations that the proposed algorithm enhances throughputs of low priority traffics where QoS is provided as well.

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