Beacon Adaptive Update for Interference Reduction in Mobile Ad hoc Networks

Mobile Ad hoc Networks are Self-Configuring Multi-Step Networks consisting of Wireless Nodes without infrastructure or a default topology in which nodes can work together to communicate and exchange, in which nodes will be able to connect and exchange data with each other. Nodes in mobile networks have limitations in communication resources such as bandwidth, buffer space, and battery power. The formed topology will rarely remain static because the mobile nodes are mobile. Therefore, each node must broadcast its updated position to neighbor nodes. These updates will reduce power consumption and the risk of collisions at the Media Access Control layer, and increase wireless bandwidth. There is a need to adapt the Beacon transmission to the node's movement and traffic conditions instead of applying the Beacon static updating policies concerning the costs associated with Beacon transmission. Therefore, in this research, a method of adjusting the bacon sending ratio that is compatible with the speed of movement of the nodes has been used to reduce the interference. On the other hand, the link life factor is considered to increase the reliability to deal with the dynamics of the Mobile Ad hoc Networks environment. The simulation results show that the proposed method reduces the collision ratio (67 and 57%(, normalized overhead (32 and 43%), and the number of packages (49 and 44%) compared to the GBR-CNR-LU and GBR-CNR-LN protocols, energy consumption (3 and 4%). It also increases End-to-End Latency (43 and 32%), Throughput (8 and 15%).