Conditional Transmissions: Performance Study of a New Communication Strategy in VANET

Ducourthial, Bertrand; Khaled, Yacine; Shawky, Mohamed

doi:10.1109/tvt.2007.907235

Cited by 43 publications

(21 citation statements)

References 6 publications

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“…One of the interesting approaches to data dissemination is called Conditional Transmissions technique (Ducourthial et al, 2007). Authors assume that most of the applications require in fact broadcast communication and the receiver can be described by some set of conditions.…”

Section: Context Aware Mechanismsmentioning

confidence: 99%

CARAVAN: A Context-AwaRe Architecture for VANET

Kukliński¹,

Wolny²

2011

Mobile Ad-Hoc Networks: Applications

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One of the new networking concepts which was born during the last decade is the communication between cars using short range wireless solutions, known as VANET (Vehicular Ad hoc NETwork). Despite the significant research efforts the VANET are still in the infancy and so far there are no implementations. In fact the VANET concept imposes a lot of serious problems, which so far have been resolved only partially. The most important problem is the intermittent connectivity of VANET nodes caused by high mobility of cars. The high dynamics of cars combined with usage of short range communications make the connectivity among the cars very unstable, so even the best effort service cannot be guaranteed. Of course, the communication quality differs in cities during traffic jams (where we may obtain dense and stable networks) from one in highways (where the VANET network is sparse and the topology is highly dynamic). Due to the variety of communication scenarios it is very hard to predict the generic transport characteristics of VANET networks. It is worth to mention that there have been created many routing protocols for VANET. Unfortunately, most of them are focused on specific scenarios only. Another VANET problem deals with the definition of services suitable for these networks. VANET can be used for safety applications (this is the primary goal), for driving support information services (information about parking places, points-of-interest, etc.) and, in some concepts, it can offer classic Internet services including high quality media streaming. Of course, the above mentioned VANET problem with highly unreliable communication will limit the service portfolio in the same way as it is observed in other networks. It has to be noted however, that in VANET the diversity of communication quality is enormous; in some situations high quality links of high throughput can be created (in case of parked cars) but at the other extreme there is highly intermittent communication which enables only the exchange of short messages between the nodes (the highway case). The next VANET specific problem is related to the identification of service recipients and the way in which the information is disseminated among them. It has to be noted that the client-server model, very popular in the Internet, has only limited or even no usage in VANET, because such networks are generally server-less. Using node address for service delivery also has limited usage, because it characterizes neither a node nor its service requirements. The classic unicast communication has very limited usage as well. The range controlled broadcast, www.intechopen.comMobile Ad-Hoc Networks: Applications 126 multicast (if groups are identified) or anycast in some cases are better suited for, and in many (though not all) cases the geocasting is a solution of choice. A very important problem concerns the incremental deployment of VANET and is linked to VANET business model. There is no doubt that the deployment of such networks will progress gradually, and it is expected th...

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Section: Context Aware Mechanismsmentioning

confidence: 99%

CARAVAN: A Context-AwaRe Architecture for VANET

Kukliński¹,

Wolny²

2011

Mobile Ad-Hoc Networks: Applications

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“…Ducourthial et al proposed a routing mechanism for VANETs which is based on conditional transmissions, called HOP [13]. Using simulation, they have compared HOP's performance in terms of data delivery rate against other 5 routing protocols: OLSR (Optimized Link State Routing Protocol), Fast OLSR, AODV, LBM (LocationBased Multicast), and GAMER (Geocast Adaptive Mesh Environment for Routing).…”

Section: Related Workmentioning

confidence: 99%

Veer: A trajectory-based peer selection algorithm for networks of vehicles

Cavalcanti

Campista

Abdesslem

et al. 2010

2010 the 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net)

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Abstract-We propose Veer, a peer selection algorithm for file exchange in vehicular ad hoc networks. The innovative aspect of Veer is that it relies on embedded GPS devices to determine individual mobility patterns and, consequently, to help select the peers that increase the probability that a file transfer succeeds. Transfer opportunities are computed in advance based on an estimation of the contact time window between a node and its selected peers. We show that such an opportunistic one-hop transfer mechanism leads to better results than traditional multi-hop file transfers both in terms of goodput and delivery ratio.

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“…In [5], Receiver-oriented approach has been proposed where several nodes may decide to retransmit the message, leading to collisions and/or bandwidth wastage. Each node waits for a random delay before sending the message, except if a neighbor already resent.…”

Section: Introductionmentioning

confidence: 99%

A Novel Cluster based Routing Algorithm for Hybrid Mobility Model in VANET

Girinath¹,

Selvan²

2010

IJCA

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ABSTRACT:This paper proposes a new approach for cluster based routing algorithm for hybrid mobility model to regulating the vehicular traffic. Our approach uses a new hybrid mobility model combining randomwaypoint and group mobility model using static and dynamic sources and a novel cluster based routing algorithm. To transmit the real time updated information and maintain long link duration to improve the data delivery ratio, we propose Location based Multipath Flooding (LMF) algorithm, which is suitable for vehicles with variable mobility. The scenario and the network are modeled and investigated through extensive simulations using Ns2 simulator to study the performance in terms of cluster construction.

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Conditional Transmissions: Performance Study of a New Communication Strategy in VANET

Cited by 43 publications

References 6 publications

CARAVAN: A Context-AwaRe Architecture for VANET

CARAVAN: A Context-AwaRe Architecture for VANET

Veer: A trajectory-based peer selection algorithm for networks of vehicles

A Novel Cluster based Routing Algorithm for Hybrid Mobility Model in VANET

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