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Date of Publication:2022-10-10

Journal:大连理工大学学报

Affiliation of Author(s):软件学院

Issue:1

Page Number:41-49

ISSN No.:1000-8608

Abstract:In Ad Hoc network, nodes compete channels to communicate. It is likely to cause fairness problems if the selection strategy of collision window value is unreasonable. With the analyses of the implementation mechanisms of existing typical fairness algorithms, a concept of channel occupancy rate is raised. Based on this concept, an adaptive fairness algorithm for Ad Hoc network is proposed. The network correspondence is classified into four types according to the history of correspondence and the relationship between the current channel occupancy rate and the ideal channel occupancy rate. In each type, the collision window value of node is set dynamically based on the current network load. Simulation results show that the proposed algorithm performs well under various load conditions. It can significantly improve fairness of channel access among nodes as well as throughput, so it is better than BEB, MILD, MIMD and NAVB algorithms. ? 2016, Editorial Office of Journal of Dalian University of Technology. All right reserved.

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