International Journal of Computer Applications
IEEE 802.15.4a standard based geographical routing provides low data rate connectivity at a very small power consumption and low complexity to inexpensive devices. The existing geographical relies on finding the least power consuming path by creating and maintaining routing tables. Beacon packets are used for computing power and energy consumption between two nodes. This power and energy consumption information is used for creating and updating the routing tables at various nodes. For every change in the data transmission conditions, multiple beacon packets are exchanged between various nodes for updating the routing tables.