AN ACCESS AND ROUTING PROTOCOL FOR AD HOC NETWORKS USING SYNCHRONOUS COLLISION RESOLUTION AND NODE STATE DISSEMINATION

摘要

An ad hoc network organizes itself to provide communications without need for an a priori designated central control mechanism or base stations. Such self-organization is challenging in a multihop ad hoc network having member nodes (1, 4) that are highly mobile and widely distributed (Fig. 1). A Synchronous Collision Resolution (SCR) protocol (1) and a Node State Routing (NSR) protocol (2A and 2B) are well suited to provide efficient ad hoc network organization. SCR (1) is an access protocol that achieves high capacity collision free access using a signaling approach that creates a random cellular-like network after each signaling period. NSR is a routing protocol (2A) that uses the dissemination of node states (2A) to predict link availability and to assign metrics to those links by the transceiver (3) for the creation of optimised routes. In use, the present invention provides quality of service and supports energy conservation for the mobile nodes.