Data Dissemination Techniques in Vehicular Ad Hoc Network

Sutariya, Dharmendra; Pradhan, Shrikant

doi:10.5120/1240-1725

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…According to the specific requirements of EWMs dissemination, such as high timeliness and validity demands, researchers believe that flooding approach is suitable for Wireless Netw delay sensitive applications and also for sparsely connected networks [21]. Since in structure-less dissemination, which is also called store-and-forward dissemination, no routing structures are maintained and a broadcast mechanism is used to save messages and transfer later.…”

Section: Related Workmentioning

confidence: 99%

A priority-based CCA threshold adjusting method for EWM dissemination in vehicular ad-hoc networks

Han

Zeng

et al. 2014

Wireless Netw

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Emergency warning message (EWM) transmission insurance is one of the most interesting topics for vehicular ad-hoc network application. Clear channel assessment (CCA) threshold is deemed to be a key factor influencing EWM dissemination performance. Considering vehicle abnormal event hazard level and EWM's important level, a new parameter, EWM priority rank, is defined. Based on EWM priority rank, a new CCA threshold selfadjusting method is proposed in this paper. Moreover, according to the proposed CCA threshold selection method, an EWM dissemination algorithm is designed. A series of experiments on the sensor network testbed are conducted to evaluate the impact of proposed method on EWM dissemination. The experimental results show that an appropriate CCA threshold is beneficial to increase global dissemination success rate and to shorten packet delivery delay.

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Section: Related Workmentioning

confidence: 99%

A priority-based CCA threshold adjusting method for EWM dissemination in vehicular ad-hoc networks

Han

Zeng

et al. 2014

Wireless Netw

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“…For example, in , the authors proposed the nearest surrender searching mechanism to solve the service discovery problem in MANET. According to , the service discovery mechanisms for VANET can be categorized as vehicle‐to‐infrastructure (V2I) and vehicle‐to‐vehicle (V2V). In V2V, the Vehicular Information Transfer Protocol (VITP) proposed in is an application layer protocol designed to support data dissemination over VANETs.…”

Section: Related Workmentioning

confidence: 99%

Integrated service discovery architecture for heterogeneous networks

Chen

Sung

2015

Int J Communication

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SUMMARYThe discovery and management of desired network services present significant challenges for mobile networks. Based on the Service Location Protocol, this paper proposes an integrated service discovery architecture for vehicular ad hoc networks. The proposed approach divides the network into several logical zones. The zone structure is formed virtually based on position information. Each logical zone may have a zone directory agent to manage registered services from service providers. The proposed architecture considers both vehicle-to-infrastructure and vehicle-to-vehicle communication modes and introduces roadside directory agents and vehicle directory agents to reduce deployment costs. We also introduce a substitute query technique, cache mechanism, and backup mechanism to improve the request hit ratio and reduce the message overhead of the substitute query. Finally, we implement the proposed mechanisms in Network Simulator version 2, with simulation results showing that the proposed architecture can provide a high average data hit ratio and low message overhead.

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