DSR is an on-demand routing protocol

it takes a lot of time to find a path

and does not take into account the problem of node energy.Aiming at these deficiencies of DSR protocol

an improving DSR protocol which called IDSR protocol is proposed.At first

a node which will send data will be predicted

and then a network topology of the node will be detected using small world theory.If the prediction is right

it will not waste time to find the path

thereby reducing the transmission delay.Uses latency and residual energy as selection criteria of the best routing

which provides QoS support.Simulation results show that compared with DSR protocol

IDSR protocol reduces routing overhead

average delay and average hops

and the packet arrival rate and network life cycle are improved to some extent.