Performance enhancement in Wireless Sensor Network using hexagonal topology

Abstract

Wireless sensor networks become popular due to its attracting applications like monitoring and tracking. A sensor network is composed of a large number of sensor nodes, which are densely deployed and relay on limited battery power. In an Ad-Hoc network better Quality of Services can be achieved either by using high transmit power or by reducing number of hops. Transmitting at unnecessarily high power reduces the life time of sensor node as well as network. One of the goals of forming a network is to have power optimization-that is, each sensor node should be able to communicate with any other sensor node via less number of hops. Involving less number of intermediate sensor nodes in a route provides better QoS as well as rest sensor nodes can be involved in other transmission. The strategy of using optimum number of hop in multi hop communication is to provide less number of transmission in a route, which provides less involvement of semiconductor noise, signal interference, fading, scattering and shadowing, which ultimately improves QoS and also preserve the power of other sensor nodes.