Special Issue Article
Enhancement of Lifetime Using Duty Cycle and Network Encoding In Wireless Sensor Network
The fundamental challenge in design of wireless sensor network is to enhance the network lifetime. Many factors are taken into account for the maximization of life time of wireless sensor networks, such as minimizing the power consumption, low cost operation, optimal routing algorithms, forwarding of residual power to every node to avoid the abbreviating of power in nodes, using improved version of protocols and also communication models. It investigate the lifetime increase in wireless sensor networks to avoid difficulties in network such as traffic flow, bottle neck zone creation, loss of data. It can be solved by using cope algorithm. It consists of duty cycle and network encoding method. By using these methods the bottleneck zone can be avoided. The duty cycle which is used for reduce the node counts and network coding which is used for reduce the path count. If the path count and node count is reduced bottleneck zone is avoided near the sink node, then the network lifetime can be increased in WSN. Duty cycle, network coding and the combination of duty cycle and network coding are implemented in this proposal. Energy efficiency of the bottleneck zone increases because more volume of data will be transmitted to the Sink with the same number of transmissions. This in-turn improves the overall lifetime of the network. Packet delivery ratio and packet latency are the two important metrics to improve the performance of the network lifetime.