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The Jamming problem in IEEE 802.11‐based mobile ad hoc networks with hidden terminals: Performance analysis and enhancement
Author(s) -
Li Yun,
Wang Chonggang,
Zhao Weiliang,
You Xiaohu
Publication year - 2009
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.1007
Subject(s) - computer science , jamming , computer network , throughput , ieee 802.11 , carrier sense multiple access with collision avoidance , wireless ad hoc network , multiple access with collision avoidance for wireless , hidden node problem , channel (broadcasting) , mobile ad hoc network , terminal (telecommunication) , vehicular ad hoc network , wireless , wireless network , telecommunications , physics , wi fi array , network packet , thermodynamics
The hidden‐terminal problem significantly degrades the performance of IEEE 802.11 DCF. Many previous works have investigated its influence on the throughput of CSMA‐based medium access control (MAC) protocols, especially IEEE 802.11 DCF. In this paper, we introduce a new Jamming problem for IEEE 802.11‐based mobile ad hoc networks, which is caused by hidden terminals. An analytical model is established for this problem. Based on this model, an adaptive DCF (ADCF), is designed to solve the jamming problem through adaptively adjusting the minimum contention window of hidden terminals. Simulation results effectively demonstrate that the proposed A‐DCF can avoid the jamming and in turn greatly improve channel utilization and throughput. Copyright © 2009 John Wiley & Sons, Ltd.