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Throughput and delay limits of IEEE 802.11
Published on Aug 1, 2002in IEEE Communications Letters 2.72
· DOI :10.1109/LCOMM.2002.802035
Yang Xiao56
Estimated H-index: 56
(Charles Stark Draper Laboratory),
Jon Rosdahl2
Estimated H-index: 2
(Charles Stark Draper Laboratory)
Abstract
The IEEE 802.11 protocol family provides up to 54-Mbps data rate, whereas the industry is seeking higher data rates. This paper shows that a theoretical throughput upper limit and a theoretical delay lower limit exist for the IEEE 802.11 protocols. The existence of such limits indicates that by simply increasing the data rate without reducing overhead, the enhanced performance, in terms of throughput and delay, is bounded even when the data rate goes into infinitely high. Reducing overhead is vital for good performance.
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Estimated H-index: 1
(Hyundai Motor Company),
Taehyu Shin1
Estimated H-index: 1
(Kwangwoon University)
+ 4 AuthorsHo Young Hwang13
Estimated H-index: 13
(Kwangwoon University)
Mobile devices are powered by batteries with limited capacity. In order to use them for a long time, energy efficient operation of them is necessary. In this paper, we propose an energy saving method for Wi-Fi stations which support IEEE 802.11. It modifies existed partial virtual bitmaps in IEEE 802.11 to bitmaps based on IEEE 802.11a physical layer transmission time.
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B. Azimi-Sadjadi1
Estimated H-index: 1
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Aggelos Kiayias29
Estimated H-index: 29
(University of Connecticut)
+ 1 AuthorsBülent Yener30
Estimated H-index: 30
(Rensselaer Polytechnic Institute)
The broadcast nature of any wireless communication network provides a natural eavesdropping and intervention capability to an adversary. Anyone with a tuned receiver within a radius that permits adequate signal to interference and noise ratio (SINR) may eavesdrop. Thus, effecting efficient key generation and renewal algorithms to ensure confidentiality, integrity, and authentication for every wireless link is essential for impenetrability.
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Qixiang Pang10
Estimated H-index: 10
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Soung Chang Liew39
Estimated H-index: 39
+ 1 AuthorsS.-H. Gary Chan2
Estimated H-index: 2
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Dionysios Skordoulis6
Estimated H-index: 6
(Brunel University London),
Qiang Ni28
Estimated H-index: 28
(Brunel University London)
+ 1 AuthorsMarios G. Hadjinicolaou8
Estimated H-index: 8
(Brunel University London)
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Hyung Joo Ki4
Estimated H-index: 4
(Sungkyunkwan University),
Seung-Hyuk Choi31
Estimated H-index: 31
(Sungkyunkwan University)
+ 1 AuthorsTae-Jin Lee17
Estimated H-index: 17
(Sungkyunkwan University)
IEEE 802.11 has employed distributed coordination function (DCF) adopting carrier sense multiple access with collision avoidance (CSMA/CA). To effectively resolve collisions, DCF uses binary exponential backoff (BEB) algorithm with three parameters, i.e., backoff stage, backoff counter and contention window. If a collision occurs, stations involving in the collision increase their backoff stages by one and double their contention window sizes. However, DCF with BEB wastes wireless resource when ...
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Pangun Park1
Estimated H-index: 1
Given the potential benefits offered by wireless sensor networks(WSNs), they are becoming an appealing technology for process,manufacturing, and industrial control applications. In thisthesis, we p ...
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Chia-Chuan Liang (National Central University), Shih-Wei Pan (National Central University), Jung-Shyr Wu (National Central University)
The most significant issue in 802.11 contention based networks is to prevent collisions and to ensure connection quality. Researchers have shown an increased interest in collision aware back-off algorithms. However, collision aware back-off algorithms are still failed to ensure strict priority for the high priority traffic. Especially in the heavy loading network, a large number of unsuccessful collisions of low priority traffic are the leading cause of the performance degradation of high priori...
Published on Jan 1, 2009
Hao-Ming Liang4
Estimated H-index: 4
(National Cheng Kung University),
Sherali Zeadally39
Estimated H-index: 39
(University of the District of Columbia)
+ 1 AuthorsCe-Kuen Shieh16
Estimated H-index: 16
(National Cheng Kung University)
Over the past few years, several backoff algorithms such as Exponential Increase Exponential Decrease (EIED) and Adaptive Enhanced Distributed Coordination Function (AEDCF)) have been proposed for wireless local area networks to improve channel access. We propose a new backoff technique that monitors the number of backoff counter pauses experienced and modifies the contention window accordingly. We evaluate and compare the performance of our proposed approach with EIED and AEDCF channel access t...
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Boris Bellalta1
Estimated H-index: 1
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View next paperPerformance analysis of the IEEE 802.11 distributed coordination function