A Study on the Binary Exponential Backoff in Noisy and Heterogeneous Environment

Shamy, Khoder; Assi, Chadi; Li, Guang

doi:10.1007/978-3-540-77024-4_37

Cited by 1 publication

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, a station cannot distinguish between a collision and a failed transmission due to link errors 14, 15, 27. Thus, when a host working under the original IEEE 802.11 DCF does not receive an ACK, the station always applies the exponential backoff algorithm and doubles the contention window value.…”

Section: Related Work and Problem Statementmentioning

confidence: 99%

A study on the influence of transmission errors on WLAN IEEE 802.11 MAC performance

López-Aguilera

Casademont

García-Villegas

2011

Wireless Communications

View full text Add to dashboard Cite

Since the advent of the first IEEE 802.11 standard for WLANs, several papers have been presented that evaluate the IEEE 802.11 DCF access method. In realistic WLAN environments frame errors usually occur due to non-ideal channel conditions; in this way, papers including adverse transmission conditions in the evaluation have been published later in the literature. In this paper, we review existent analytical models that include the influence of transmission errors in IEEE 802.11 DCF performance. We modify current models and provide a more accurate analysis, thus allowing the evaluation in single rate and multi-rate scenarios with stations subject to different link error conditions. Moreover, this paper exposes the unfairness problem that arises in IEEE 802.11 DCF networks with stations subject to different transmission conditions through analytical and simulation results. Stations are not able to distinguish collisions from failed transmissions due to link errors; both result in a missing ACK and, consequently, the transmitting stations apply the exponential backoff algorithm. This fact leads to a lower performance for stations in worse transmission conditions.

show abstract

Section: Related Work and Problem Statementmentioning

confidence: 99%