Abstract
Location-based ad-hoc routing protocols such as GEDIR, COMPASS and GPSR achieve higher performance in mobile ad-hoc networks under an assumption that each mobile wireless node is with a GPS receiver. Here, it is critical for their performance to advertise locations of mobile destination wireless nodes. For achieving trade-off between advertisement overhead and reachability of data messages affected by inaccuracy of locations of destination nodes, DREAM restricts advertisement ranges by distance (hop-counts) from destination nodes. For achieving better trade-off, this paper proposes ABLA (angle-based location advertisement) method which restricts advertisement ranges by change of relative direction to destination nodes. Simulation experiments show that ABLA requires lower communication overhead than DREAM for the same reachability of data messages. Hence, combination of ABLA and location-based ad-hoc routing protocols is expected to provide better trade-off between reliability and performance to ad-hoc network applications.
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