Name
Title | ||
|---|---|---|
An opportunistic forwarding protocol with relay acknowledgment for vehicular ad hoc networks |
Abstract | ||
|---|---|---|
Robust and efficient data delivery in vehicular ad hoc networks (VANETs) with high mobility is a challenging issue due to unstable wireless links and dynamic topology changes. In this vehicular environment, the exchanges of topology information and discoveries of routing paths on an end-to-end basis are not desired, because the network topology changes rapidly and the information is out-of-date in short. In this paper, we propose a contention based forwarding mechanism, which locally exploits geographic location information in order to achieve robustness of data delivery for vehicular communications. A node that is closer to the destination node has a higher priority in competing for the wireless channel, and forwards packets as a relay node earlier than other adjacent nodes. When a packet is forwarded by a relay node, its preceding node informs adjacent nodes that it has been already relayed to prevent the duplications of packet delivery. Through ns-2 simulations, we show that the proposed scheme can significantly improve the network performance in terms of the packet delivery ratio and the end-to-end delay in various synthetic and trace-based realistic VANET scenarios with a wide range of vehicle speed and density. Copyright © 2010 John Wiley & Sons, Ltd. (A preliminary version of this paper appeared in IEEE LCN 2008, Montreal, October 20081.) (In this paper, we propose a contention based forwarding mechanism, which locally exploits geographic location information in order to achieve robustness of data delivery for vehicular communications. A node that is closer to the destination node has a higher priority in competing for the wireless channel, and forwards packets as a relay node earlier than other adjacent nodes. When a packet is forwarded by a relay node, its preceding node informs adjacent nodes that it has been already relayed to prevent the duplications of packet delivery.) |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1002/wcm.991 | Wireless Communications and Mobile Computing |
Keywords | Field | DocType |
duplication suppression,forwarding protocol,routing,vehicular ad hoc networks | Wireless,Computer science,Network packet,Computer network,Network topology,Wireless ad hoc network,Ring network,Relay,Vehicular ad hoc network,Distributed computing,Network performance | Journal |
Volume | Issue | ISSN |
11 | 7 | 1530-8669 |
Citations | PageRank | References |
5 | 0.46 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Inhyeok Jang | 1 | 5 | 0.80 |
| Wooyeol Choi | 2 | 171 | 10.76 |
| Hyuk Lim | 3 | 673 | 51.93 |