NDLI: Delay-bounded minimal cost placement of roadside units in vehicular ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Peng Li Qin Liu Chuanhe Huang Jinhai Wang Xiaohua Jia
Copyright Year	2015
Description	Author affiliation: Dept. of Comput. Sci., City Univ. of Hong Kong, Hong Kong, China (Xiaohua Jia) \|\| Comput. Sch., Wuhan Univ., Wuhan, China (Peng Li; Qin Liu; Chuanhe Huang; Jinhai Wang)
Abstract	This paper addresses the delay-bounded minimal cost roadside units (RSUs) placement problem in vehicular ad hoc networks. There are two types of RSUs: cable connected RSU (c-RSU) and wireless RSU (w-RSU). c-RSUs are interconnected through wired lines, and they form the backbone of VANETs. They also usually have a larger communication range due to the availability of power source and more powerful devices. Despite the benefit of fast information dissemination, c-RSUs are often associated with high cost. On the other hand, w-RSUs connect to other RSUs through wireless communication and typically have a smaller transmission range. Given a set of candidate sites in a region and a delay bound, the problem is how to find the optimal placement of c-RSUs and w-RSUs, such that the total cost is minimized, while all of the vehicles in the region can receive the message sent out from c-RSUs within the delay bound. We first prove that the problem is NP-hard. Then, we propose a greedy algorithm and a two-phase algorithm to solve the problem. Simulation results show our proposed algorithms can significantly reduce the total cost, compared with other methods.
Starting Page	6589
Ending Page	6594
File Size	164781
Page Count	6
File Format	PDF
e-ISBN	9781467364324
DOI	10.1109/ICC.2015.7249375
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Roads Vehicles Delays Greedy algorithms Vehicular ad hoc networks Wireless communication vehicular ad hoc networks roadside unit facility placement delay-bounded broadcast
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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