Improving wireless sensor network lifespan by efficient routing algorithm and LZW compression

In a wireless sensor network (WSN), sensor nodes are powered by batteries that can operate for only a short period of time, which results in short network lifetime. The short lifetime disables the application of WSNs for long term tasks such as structural health monitoring for bridges and tunnels, border surveillance, road condition monitoring, etc. In this paper the overall network lifetime is increased using Grade diffusion (GD) algorithm along with LZW compression technique. Grade diffusion algorithm select the more available energy node as the relay node in the routing process and LZW algorithm reduces the transmitting and receiving power by compressing the original data size. By reducing the transmitting and receiving power to extend the life time of the wireless sensor network.