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On the performance of
geographical routing in the presence of localization errors
Rahul C. Shah, Adam Wolisz,
Jan M. Rabaey
IEEE International Conference on Communications
Abstract :
In this paper, a detailed study of
the performance of geographic routing protocols in the presence of localization
errors is carried out. Both analytical and simulation results illustrate the
major impact of localization errors on the protocol goodput and route discovery
energy. The performance metrics observed were the packet delivery ratio and the
power consumed at a node for routing. It is shown that significant performance
deterioration occurs with location errors as low as 20% of a node’s radio
range with no other obstacles in the network. To counteract this degradation, an
enhancement is proposed that increases the error tolerance to about 40% radio
range and in addition improves the performance consistently for any location
error. Furthermore, the effect of obstacles in conjuction with location errors
on the routing performance is also investigated.
paper 
presentation
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