A New Collision Resolution Mechanism to Enhance the Performance of IEEE 802.11 DCF

Wang, Chonggang; Li, Bo; Li, Lemin

doi:10.1109/tvt.2004.830951

Cited by 220 publications

(108 citation statements)

References 7 publications

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“…In [15], a collision-resolution mechanism called GDCF is proposed to enhance the throughput performance of IEEE 802.11 DCF. DCF resets CW to the initial value upon a successful transmission.…”

Section: B Fairnessmentioning

confidence: 99%

“…To evaluate the priority and fairness performance of our proposed scheme supporting integrated voice/data traffic, we compare with IEEE 802.11e EDCA and GDCF introduced in [15] by simulations. Different from DCF where CW is reset to the initial value upon a successful transmission, GDCF halves the CW when the target (source) node has c consecutive successful transmissions.…”

Section: Performance Evaluationmentioning

confidence: 99%

See 1 more Smart Citation

A Distributed Channel Access Scheme with Guaranteed Priority and Enhanced Fairness

Jiang

Wang

Zhuang

2007

IEEE Trans. Wireless Commun.

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Abstract-Although the IEEE 802.11e enhanced distributed channel access (EDCA) can differentiate high priority traffic such as real-time voice from low priority traffic such as delaytolerant data, it can only provide statistical priority, and is characterized by inherent short-term unfairness. In this paper, we propose a new distributed channel access scheme through minor modifications to EDCA. Guaranteed priority is provided to realtime voice traffic over data traffic, while a certain service time and short-term fairness enhancement are provided to data traffic. We also present analytical models to calculate the percentage of time to serve voice traffic and the achieved data throughput. Both analysis and simulation demonstrate the effectiveness of our proposed scheme.Index Terms-IEEE 802.11e EDCA, distributed channel access, quality of service, priority, short-term fairness.

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Section: B Fairnessmentioning

confidence: 99%

Section: Performance Evaluationmentioning

confidence: 99%

A Distributed Channel Access Scheme with Guaranteed Priority and Enhanced Fairness

Jiang

Wang

Zhuang

2007

IEEE Trans. Wireless Commun.

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“…Wang et al [68] designed a new collision resolution mechanism, referred as gentle DCF or GDCF. The difference between GDCF and DCF is that GDCF takes a more conservative measure by halving the CW (Contention Window) value only if there are c consecutive successful transmissions.…”

Section: Network Protocols and Algorithmsmentioning

confidence: 99%

Survey of Real-Time Communication in CSMA-Based Networks

Moraes

Vasques

Portugal

2010

NPA

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The purpose of this paper is to survey the state-of-the-art on real-time (RT) communication in CSMA-based networks and to identify the most suitable approaches to deal with the requirements imposed by next generation communication environments. The paper focuses in the two of the most relevant solutions that operate in shared broadcast environments, according to the CSMA medium access protocol (IEEE 802.3/802.11). RT communication solutions are classified according to two classification axes. The first axis is related to how collisions are dealt with. A second classification axis is related to the compatibility degree achieved by each of the proposed approaches. Finally, a RT communication framework that is adequate to support RT communication in shared environments is briefly discussed.

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“…[8]- [10]), typically based on heuristics and sometimes requiring changes to the MAC layer. To the best of our knowledge, apart from our preliminary work in [11] only Bruno et al [12] have considered the relation between throughput and energy and have discussed whether these could be both jointly maximized or not.…”

Section: Introductionmentioning

confidence: 99%

On the energy efficiency of IEEE 802.11 WLANs

Serrano

García‐Saavedra

Hollick

et al. 2010

2010 European Wireless Conference (EW)

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Abstract-Understanding the energy consumption of wireless interfaces is critical to provide guidelines for the design and implementation of new protocols or interfaces. In this work we analyze the energy performance of an IEEE 802.11 WLAN. Our contributions are as follows: i) we present an accurate analytical model that is able to predict the energy consumption, ii) we present an approximate model that sacrifices accuracy for the sake of analytical tractability, iii) based on this simplified analysis, we derive the optimal configuration to maximize energy efficiency of a WLAN, and iv) finally, we also analyze the tradeoff between throughput and energy efficiency that IEEE 802.11 imposes. While most of these results consider a homogeneous WLAN scenario where all stations share the same energy features, we also discuss the case of heterogeneous environments, where different devices show different power consumption characteristics.

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A New Collision Resolution Mechanism to Enhance the Performance of IEEE 802.11 DCF

Cited by 220 publications

References 7 publications

A Distributed Channel Access Scheme with Guaranteed Priority and Enhanced Fairness

A Distributed Channel Access Scheme with Guaranteed Priority and Enhanced Fairness

Survey of Real-Time Communication in CSMA-Based Networks

On the energy efficiency of IEEE 802.11 WLANs

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