Ubiquitous Computing and Communication Journal
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Abstract
Title: A NEW BACKOFF ALGORITHM FOR IEEE 802.11 DCF MAC PROTOCOL IN MOBILE AD HOC NETWORKS
Authors: Dr. Wail Mardini, Dr. Muneer Bani Yassein, Miss Zainab AbuTaye'
Abstract:
Backoff algorithms are one class of collision resolution algorithms used in the medium access control protocol in mobile ad hoc networks. When there are different nodes competing to access a shared channel at the same time, the possibility of collision is highly probable, especially in high traffic load networks. Collision is considered as the major problem in wireless networks, so the backoff mechanism should be applied in order to decrease the collision and to achieve an efficient use of the shared channel. This paper aims to propose and evaluate a new backoff algorithm called “Dynamic Backoff Algorithm (DBA)” which is a combination of two increment methods (exponential, linear) that applied for N phases and it also has one decrement method (linear).