SNR-Based Virtual Base Station for establishing a QoS Framework in MANET

Multi-hop Mobile Ad-Hoc wireless Networks (MANET) became commonly used in military and commercial applications. Therefore, to ensure a satisfactory network performance - according to the user’s applications requirements - we have to meet the most challenging QoS parameters in MANET environment. One of the most challenging issues in MANET is the lack of central coordination. Related studies dealing with QoS provisioning in MANET have suggested Virtual Base Station (VBS) election algorithms to select one Mobile Terminal (MT) or node to be a central coordinating and routing node or device for the other network’s nodes. These previous studies have built their algorithms based on: Max-Min d-cluster formation, or the battery residual power. The VBS protocol was invented in MANET in order to simulate the regular cellular network’s routing device and act as a central administrative point to relay the packets transmitted between the nodes. Since MANETs are commonly used in emergency applications that require a satisfactory QoS for almost all their users, thus, the improvement of the overall network’s throughput can be useful to establish a promising QoS framework once the proper integration of the MAC protocol with the routing and call admission mechanisms is established. This paper suggests an algorithm to elect the VBS based on the Signal to Noise Ratio SNR to reduce the “Packet Loss Ratio” and therefore improve the network’s throughput in (MANET).