Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs

Zhenzhen Cao; Zvi Rosberg; Xun Yang; Yang Xiao

doi:10.1109/ICC.2010.5502425

Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs

Zhenzhen Cao
, Zvi Rosberg
, Xun Yang
, Yang Xiao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Distributed Coordinate Functions (DCF) is the mandatory medium access method for IEEE 802.11 Wireless Local Area Networks (WLANs), which is designed for infrastructure WLANs where all end users connect with Access Point (AP) with single-hop links. DCF doubles its Contention Window (CW) before each retransmission. However, in multi-hops WLANs, a node may encounter different kinds of transmission failures from different transmission directions. In this paper, we will point out that, in some situations doubling CW before retransmitting makes DCF exploit the medium inefficiently. We also propose a method to resolve this problem by employing different backoff mechanisms for different transmission directions. NS-2 simulations demonstrate a significant throughput improvement of our enhanced MAC over the native MAC.

Original language	English
Title of host publication	2010 IEEE International Conference on Communications, ICC 2010
DOIs	https://doi.org/10.1109/ICC.2010.5502425
State	Published - 13 Aug 2010
Externally published	Yes
Event	2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa Duration: 23 May 2010 → 27 May 2010

Publication series

Name	IEEE International Conference on Communications
ISSN (Print)	0536-1486

Conference

Conference	2010 IEEE International Conference on Communications, ICC 2010
Country/Territory	South Africa
City	Cape Town
Period	23/05/10 → 27/05/10

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICC.2010.5502425

Cite this

@inproceedings{82add3cb04ff43ba919edb50e41529a2,

title = "Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs",

abstract = "Distributed Coordinate Functions (DCF) is the mandatory medium access method for IEEE 802.11 Wireless Local Area Networks (WLANs), which is designed for infrastructure WLANs where all end users connect with Access Point (AP) with single-hop links. DCF doubles its Contention Window (CW) before each retransmission. However, in multi-hops WLANs, a node may encounter different kinds of transmission failures from different transmission directions. In this paper, we will point out that, in some situations doubling CW before retransmitting makes DCF exploit the medium inefficiently. We also propose a method to resolve this problem by employing different backoff mechanisms for different transmission directions. NS-2 simulations demonstrate a significant throughput improvement of our enhanced MAC over the native MAC.",

author = "Zhenzhen Cao and Zvi Rosberg and Xun Yang and Yang Xiao",

year = "2010",

month = aug,

day = "13",

doi = "10.1109/ICC.2010.5502425",

language = "English",

isbn = "9781424464043",

series = "IEEE International Conference on Communications",

booktitle = "2010 IEEE International Conference on Communications, ICC 2010",

note = "2010 IEEE International Conference on Communications, ICC 2010 ; Conference date: 23-05-2010 Through 27-05-2010",

}

Cao, Z, Rosberg, Z, Yang, X & Xiao, Y 2010, Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs. in 2010 IEEE International Conference on Communications, ICC 2010., 5502425, IEEE International Conference on Communications, 2010 IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 23/05/10. https://doi.org/10.1109/ICC.2010.5502425

Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs. / Cao, Zhenzhen; Rosberg, Zvi; Yang, Xun et al.
2010 IEEE International Conference on Communications, ICC 2010. 2010. 5502425 (IEEE International Conference on Communications).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs

AU - Cao, Zhenzhen

AU - Rosberg, Zvi

AU - Yang, Xun

AU - Xiao, Yang

PY - 2010/8/13

Y1 - 2010/8/13

N2 - Distributed Coordinate Functions (DCF) is the mandatory medium access method for IEEE 802.11 Wireless Local Area Networks (WLANs), which is designed for infrastructure WLANs where all end users connect with Access Point (AP) with single-hop links. DCF doubles its Contention Window (CW) before each retransmission. However, in multi-hops WLANs, a node may encounter different kinds of transmission failures from different transmission directions. In this paper, we will point out that, in some situations doubling CW before retransmitting makes DCF exploit the medium inefficiently. We also propose a method to resolve this problem by employing different backoff mechanisms for different transmission directions. NS-2 simulations demonstrate a significant throughput improvement of our enhanced MAC over the native MAC.

AB - Distributed Coordinate Functions (DCF) is the mandatory medium access method for IEEE 802.11 Wireless Local Area Networks (WLANs), which is designed for infrastructure WLANs where all end users connect with Access Point (AP) with single-hop links. DCF doubles its Contention Window (CW) before each retransmission. However, in multi-hops WLANs, a node may encounter different kinds of transmission failures from different transmission directions. In this paper, we will point out that, in some situations doubling CW before retransmitting makes DCF exploit the medium inefficiently. We also propose a method to resolve this problem by employing different backoff mechanisms for different transmission directions. NS-2 simulations demonstrate a significant throughput improvement of our enhanced MAC over the native MAC.

UR - https://www.scopus.com/pages/publications/77955359887

U2 - 10.1109/ICC.2010.5502425

DO - 10.1109/ICC.2010.5502425

M3 - Conference contribution

AN - SCOPUS:77955359887

SN - 9781424464043

T3 - IEEE International Conference on Communications

BT - 2010 IEEE International Conference on Communications, ICC 2010

T2 - 2010 IEEE International Conference on Communications, ICC 2010

Y2 - 23 May 2010 through 27 May 2010

ER -

Differentiate backoff mechanisms for transmission directions in IEEE 802.11 multihop WLANs

Abstract

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ASJC Scopus subject areas

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