TY - JOUR
T1 - The density based access method
T2 - A novel approach to optimizing run-time throughput for IEEE 802.11 DCF access control
AU - Liang, Hao Ming
AU - Shieh, Ce Kuen
AU - Huang, Tzu Chi
AU - Hwang, Wen Shyang
AU - Ke, Chih Heng
PY - 2011/2
Y1 - 2011/2
N2 - According to previous work, the performance of the Distributed Coordination Function (DCF) (i.e., the basic access method of the IEEE 802.11 protocol) is far from optimum due to use of the binary exponential backoff (BEB) scheme as its collision avoidance mechanism. There has been considerable discussion of DCF issues and its performance analysis. However, most schemes assume an ideal channel, which is contrary to realistic wireless environments. In this paper, we present a simple yet pragmatic distributed algorithm, designated the density based access method (DBM), which allows stations to dynamically optimize the network throughput based on run-time measurements of the channel status. Our simulation results demonstrate that the DBM is highly accurate. The performance in terms of throughput and fairness is nearly optimal by use of the proposed scheme.
AB - According to previous work, the performance of the Distributed Coordination Function (DCF) (i.e., the basic access method of the IEEE 802.11 protocol) is far from optimum due to use of the binary exponential backoff (BEB) scheme as its collision avoidance mechanism. There has been considerable discussion of DCF issues and its performance analysis. However, most schemes assume an ideal channel, which is contrary to realistic wireless environments. In this paper, we present a simple yet pragmatic distributed algorithm, designated the density based access method (DBM), which allows stations to dynamically optimize the network throughput based on run-time measurements of the channel status. Our simulation results demonstrate that the DBM is highly accurate. The performance in terms of throughput and fairness is nearly optimal by use of the proposed scheme.
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U2 - 10.1016/j.mcm.2010.03.029
DO - 10.1016/j.mcm.2010.03.029
M3 - Article
AN - SCOPUS:78650539182
SN - 0895-7177
VL - 53
SP - 443
EP - 457
JO - Mathematical and Computer Modelling
JF - Mathematical and Computer Modelling
IS - 3-4
ER -