A novel tree-based broadcast algorithm for wireless ad hoc networks

One designing challenge in the scheduling of broadcast in wireless ad hoc networks is to reduce broadcast redundancy and provide high reachability, simultaneously. In this paper, we propose a broadcasting algorithm in wireless ad hoc networks. The algorithm uses two-hop neighbourhood information to construct the broadcast tree, in which the information can be gathered via exchanging ‘hello’ messages within the neighbour nodes. The channel is allocated to the non-leaf nodes in the broadcast tree in a time-oriented way to ensure that the forwarding of the broadcasted message along the broadcast tree is collision-free. Both theoretical analysis and simulation results demonstrate that our scheme is efficient in terms of the bounded broadcast redundancy and the highest reachability.