Research On Broadcast Algorithm Based On Successful Broadcasting Rate And Energy Balance Of Nodes In Mobile Ad Hoc Networks

In mobile Ad Hoc networks,flooding algorithm is often used to implement broadcasting,but blind flooding causes information redundancy,package collision and channel contentions,which will lead to broadcasting storm problems and broadcasting unreliability.After analyzing the broadcasting storm and the broadcasting unreliability in detail,a new broadcast algorithm based on successful broadcasting rate and energy balance of nodes(BSREB)is proposed.In this algorithm,every node in a network calculates its broadcast forwarding probability according to its own successful broadcasting rate and residual energy.Successful broadcasting rate is calculated by acquiring packets that have been sent by the node broadcasted by neighbor nodes.The higher the successful broadcasting rate is,the higher the forwarding probability is.This strategy leads to higher successful probability of each forwarding of every node and lower the redundant transmissions.Thus the broadcast storm is supressed.The residual energy is another parameter when calculating the forwarding probability.The higher the residual energy of a node is,the higher the forwarding probability is,which leads to energy balance and longer network lifetime.Furthermore,forwarding delay mechanism is introduced.A node randomly selects a delay before forwarding a packet,which means forwarding is conducted in a time division manner.This mechanism reduces the packet collisions at receiving nodes and increases the broadcast reliability.The simulation results shows that BSREB obtains lower end-to-end delay and higher reachability.It is also adaptable to mobile networks.