Title: Adaptive RSU re-routing under delay constraint in multi-hop vehicular networks

Authors: Kuo-Lung Wang; Tsan-Pin Wang; Chien-Chao Tseng

Addresses: Department of Computer Science, National Chiao Tung University, Hsinchu 300, Taiwan ' Department of Computer Science, National Taichung University of Education, Taichung 407, Taiwan ' Department of Computer Science, National Chiao Tung University, Hsinchu 300, Taiwan

Abstract: Vehicular wireless networks (VWNs) offer wireless multi-hop communications between vehicles and roadside units (RSUs). A multi-hop wireless network with carry-and-forward routing may suffer from longer delay in packet delivery. However, the applications may demand stringent delay requirement in multi-hop VWNs. Therefore, this paper proposes an adaptive RSU re-routing strategy to alter the current associated RSU to the best RSU under delay or throughput constraints for applications in multi-hop VWNs. Performance results show that the proposed strategy is able to adaptively select a suitable packet size for the trade-off between delay and throughput to satisfy the diverse requirements of applications in multi-hop VWNs.

Keywords: IEEE 802.11p; vehicular networks; multi-hop networks; carry-and-forward routing; adaptive rerouting; delay constraints; roadside units; vehicle communications; wireless networks; packet delivery; throughput constraints.

DOI: 10.1504/IJAHUC.2016.077200

International Journal of Ad Hoc and Ubiquitous Computing, 2016 Vol.22 No.2, pp.84 - 95

Received: 16 Nov 2013
Accepted: 25 Jun 2014

Published online: 23 Jun 2016 *

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