QoS Based Routing in Wireless Sensor Network

In case of Sensor network the nodes lose some amount of energy after performing the communication. To reduce the delay in the network, an approach is required that provides end to end guarantees by maintaining a desired delivery speed. Such approach is used by SPEED protocol. SPEED also contains a congestion control mechanism. Many problems arise when the network meets some kind of attacks, performance of the network further degrades. The presented work is the improvement over the SPEED protocol, respective to some parameter. Here we are using the three performance parameters throughput, bit error rate and accuracy for comparison purposes that will be evaluated in the presence of attack like attack and in case when our proposed algorithm is used. All the simulations are carried out in MATLAB.