High-effect Location-Aided Routing Scheme for Ad Hoc Environment

ILAR routing protocol was proposed to improve the efficiency of location-aided routing (LAR) protocol. It had less packets and better performance than LAR. However, ILAR still can be improved on hop counts for speed up routing discovery. We found two drawbacks in the ILAR. There are some nodes around the borders of broadcast coverages that could move out easily, it lead to a broken routing path. Another problem in the ILAR protocol was choosing the next forwarding node based on VDIST distance, but it can´t choose better nodes that causes the far node´s VDIST to be greater than the forwarding node. Therefore we propose a high-effect location-aided routing protocol (HLAR) and it solves the problems above. The simulation results our scheme has better performance than the ILAR scheme.