ETT-based Semi fixed routing algorithm

ETT-based Semi fixed routing algorithm (ESR) has been proposed. This algorithm map the 2-hops links to the virtual neighbors, save the intermediate node´s routing time, and use the Expected Transmission Time(ETT) as the fixed links preferred reference factors, reduce the probability of retransmission by using high-quality links. The algorithm use boundary node set map to boundary link set to cope with localized problem, save the time of switch protocol and the time of path finding. Simulation results show that our routing protocol outperforms the traditional reactive routing in terms of average delay and packet delivery rate.