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AuthorKalupahana Liyanage Kushan, Sudheera
AuthorMa, Maode
AuthorChong, Peter Han Joo
Available date2022-08-31T09:52:42Z
Publication Date2022-01-01
Publication NameComputer Communications
Identifierhttp://dx.doi.org/10.1016/j.comcom.2021.10.003
CitationSudheera, K. L. K., Ma, M., & Chong, P. H. J. (2022). Real-time cooperative data routing and scheduling in software defined vehicular networks. Computer Communications, 181, 203-214.
ISSN01403664
URIhttps://www.sciencedirect.com/science/article/pii/S0140366421003753
URIhttp://hdl.handle.net/10576/33602
AbstractLinks in vehicular networks are highly dynamic and generally exist only for a limited amount of time. Moreover, data packets are generally transmitted over multiple hops and have diverse latency requirements. The above situations together create a dilemma on the order/priority of the packets to be transmitted. However, the existing channel access mechanism of VANET does not critically consider the aforementioned aspects when granting channel access, and rather focuses on avoiding and resolving packet collisions. In order to bridge this gap, we present an improved channel access granting mechanism for data routing and scheduling via software defined vehicular networks (SDVN). We scrutinize the aforementioned parameters via a global perspective and utilize diverse channel modes cooperatively to maximize the delivery of data packets under delay tolerance and link connectivity regions. The primary problem is formulated as an integer linear programming (ILP) problem. The model avoids possible packet transmission conflicts via constraints while scrutinizing the wireless nature of links. Moreover, the proposed model is easily extended for the cooperative data communication under road side unit (RSU) application scenario. Furthermore, we present two computational improvement strategies based on incremental optimization and maximum independent sets (MIS) for the two application scenarios to shift the computational complexity to a realizable level for real-time communication. The effectiveness of the proposed routing and scheduling framework is comparatively evaluated with realistic mobility embedded road networks.
Languageen
PublisherElsevier B.V.
SubjectOptimization
Routing
Scheduling
Software defined networking
Vehicular ad-hoc networks
TitleReal-time cooperative data routing and scheduling in software defined vehicular networks
TypeArticle
Pagination203-214
Volume Number181
dc.accessType Abstract Only


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