Journal ArticleDOI
A survey of void handling techniques for geographic routing in wireless networks
Dazhi Chen,Pramod K. Varshney +1 more
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TLDR
An overview of the void problem is presented and the currently available void-handling techniques (as of July 2006) for geographic routing are surveyed, each designed with a different approach.Abstract:
Communications voids, where geographic greedy forwarding fails to move a packet further towards its destination, are an important issue for geographic routing in wireless networks. This article presents an overview of the void problem and surveys the currently available void-handling techniques (as of July 2006) for geographic routing. In the survey, we classify these void-handling techniques into six categories, each designed with a different approach, that is, planar-graph-based, geometric, flooding-based, costbased, heuristic, and hybrid. For each category, we present its basic principle and illustrate some classic techniques as well as the latest advances. We also provide a qualitative comparison of these techniques and discuss some possible directions of future research.read more
Citations
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Proceedings ArticleDOI
Path quality detection algorithms for near optimal geographic routing in sensor networks with obstacles
TL;DR: This paper is presenting a novel geographic routing algorithm with obstacle avoidance properties that performs much better in terms of path length and hop count thus minimizing latency, overall traffic and energy consumption.
Proceedings ArticleDOI
An efficient real-time routing with presence of concave voids in wireless sensor networks
TL;DR: The double objective of the proposed on-demand scheme is to prevent data packets from traveling along the boundaries of voids and to avoid them the concave zones ofvoids.
Journal ArticleDOI
Adaptive Delay Tolerant Routing Protocol (ADTRP) for Cognitive Radio Mobile Ad Hoc Networks
L. Indhumathi,R. Vadivel +1 more
TL;DR: Simulations shows that the proposed protocol ADTRP performs better in terms of improved throughput, better packet delivery ratio, decreased packet drop and reduced delay.
Proceedings ArticleDOI
A Position-Based Deployment and Routing Approach for Directional Wireless Mesh Networks
Weisheng Si,S. Selvakennedy +1 more
TL;DR: The main idea of this strategy is to deploy the mesh network in certain kind of geometric graph and then design a position-based routing protocol by exploiting the routing properties of this graph.
Proceedings ArticleDOI
Availability analysis of resilient geometric routing on Internet topology
TL;DR: An analysis on the availability of the proposed protection techniques on the Internet graph shows that the proposed scheme performs reasonably well compared to the shortest cycle scheme and significantly enhances the availability compared to geometric routing without any protection.
References
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TL;DR: When n identical randomly located nodes, each capable of transmitting at W bits per second and using a fixed range, form a wireless network, the throughput /spl lambda/(n) obtainable by each node for a randomly chosen destination is /spl Theta/(W//spl radic/(nlogn)) bits persecond under a noninterference protocol.
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GPS-less low-cost outdoor localization for very small devices
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Proceedings ArticleDOI
Dynamic fine-grained localization in Ad-Hoc networks of sensors
TL;DR: A novel approach to the localization of sensors in an ad-hoc network that enables sensor nodes to discover their locations using a set distributed iterative algorithms is described.