DocumentCode :
1970592
Title :
A road-based QoS-aware multipath routing for urban vehicular ad hoc networks
Author :
Yi-Ling Hsieh ; Kuochen Wang
Author_Institution :
Dept. of Comput. Sci., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear :
2012
fDate :
3-7 Dec. 2012
Firstpage :
189
Lastpage :
194
Abstract :
Stable and efficient routing plays a key role for the success of VANETs. Road-based routing has been shown well-suited for urban VANETs, and multipath routing provides alternative routes once the current route fails. However, existing multipath routing protocols are node-based, which are not suitable for urban VANETs. In this paper, we propose a road-based QoS-aware multipath routing protocol for urban VANETs (RMRV). The proposed RMRV can find multiple paths and intelligently utilize them. We also propose a space-time planar graph approach to predict the connectivity of each road section (RS) in a path, and then derive the path´s future lifetime and life periods. In this way, the source node may dynamically switch to use a path with the longest lifetime. The life periods of a path can further be utilized to estimate the packet delay for QoS routing. Simulation results show that comparing to RBVT-R, which is a single-path road-based routing protocol, the packet delivery ratio of the proposed RMRV (only one path used at a time) is 12.2% higher than that of RBVT-R, and the average end-to-end delay of RMRV is 11.5% lower than that of RBVT-R, on average. To the best of our knowledge, there is no existing road-based multipath routing protocol for VANETs.
Keywords :
delays; network theory (graphs); quality of service; routing protocols; vehicular ad hoc networks; RBVT-R; RMRV; end-to-end delay; life period; packet delay estimate; packet delivery ratio; path future lifetime; road section connectivity prediction; road-based QoS-aware multipath routing protocol; source node; space-time planar graph approach; urban VANET; vehicular ad hoc network; QoS; VANET; multipath; road-based; routing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location :
Anaheim, CA
ISSN :
1930-529X
Print_ISBN :
978-1-4673-0920-2
Electronic_ISBN :
1930-529X
Type :
conf
DOI :
10.1109/GLOCOM.2012.6503111
Filename :
6503111
Link To Document :
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