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Proceedings ArticleDOI

QoS for highly dynamic Vehicular ad hoc network optimality

TL;DR: A receiver based routing algorithm for achieving Optimal QoS for highly dynamic Vehicular Ad hoc Network (QVANO) and the proposed algorithm is compared with AODV.
Abstract: Extensive researches are being carried out to implement on-demand, QoS supported VANET routing algorithms. Reliability and timely information delivery are of high concern in VANETs. Providing optimal QoS over specific period of time with varying number of nodes (vehicles) is highly challenging the VANET research groups. This paper addresses the importance of providing optimal QoS for multimedia applications in VANET. Research work carried out and presented in this paper proposes a receiver based routing algorithm for achieving Optimal QoS for highly dynamic Vehicular Ad hoc Network (QVANO). The metrics used to achieve optimal QoS is delay, packet loss and bandwidth. The proposed algorithm is compared with AODV. Simulation test runs are generated using NS-2. Several test beds were configured to analyse the performance of the proposed algorithm.
Citations
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Proceedings ArticleDOI
31 Dec 2012
TL;DR: The results show that AODV-ABE could be used in urban-VANETs where vehicles' speed is moderate and the number of traffic accidents may decrease and many lives could be saved.
Abstract: Vehicular communication for intelligent transportation systems will provide safety, comfort for passengers, and more efficient travels. This type of network has the advantage to warn drivers of any event occurred in the road ahead, such as traffic jam, accidents or bad weather. This way, the number of traffic accidents may decrease and many lives could be saved. Moreover, a better selection of non-congested roads will help to reduce pollution. Some other interesting services, such as downloading of multimedia services, would be possible and available through infrastructure along the roadside. Providing multimedia services over VANETs may require a QoS-aware routing protocol that often need to estimate available resources. In this paper, we study the performance, in realistic VANET urban scenarios, of an extension of AODV that includes the available bandwidth estimator ABE. AODV-ABE establishes forwarding paths that satisfy the bandwidth required by the applications. The results, obtained on the NCTUns simulator, show that AODV-ABE could be used in urban-VANETs where vehicles' speed is moderate.

13 citations


Cites methods or result from "QoS for highly dynamic Vehicular ad..."

  • ...A routing algorithm for achieving optimal QoS for highly dynamic VANETs is proposed in [11]....

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  • ...Our proposal is similar to the works [9], [10] and [11], in the...

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Proceedings ArticleDOI
24 Oct 2012
TL;DR: A novel approach to sending beacon messages based on neighborhood awareness and road traffic density is presented, which allows authority managements to reduce the number of periodic messages to provide quality of service (QoS) for specific applications and vehicles.
Abstract: In vehicular ad-hoc networks (VANETs), vehicles exchange position information with their neighbors through periodic beacon messages. In dense areas, a massive number of messages may saturate the network and prevent nodes from acquiring the proper resources to exchange their messages. As the vehicle density increases, the network will be at risk of initiating a denial-of-service attack (DoS) of its own, which will prevent the utilization of beacon messages as intended and affect other critical applications. To resolve such potential threats, adaptive beaconing can adjust a vehicle's beacon rate based on detected signal congestion and traffic conditions. In VANETs, high mobility and rapid change in vehicles' locations present challenges in detecting traffic congestion and providing secure and accurate position information. In this paper, we present a novel approach to sending beacon messages based on neighborhood awareness and road traffic density. The proposed solution also allows authority managements to reduce the number of periodic messages to provide quality of service (QoS) for specific applications and vehicles. Simulation showed network performance improvement and a reduced number of beacon messages in dense areas without compromising the level of awareness that will support QoS provisioning and allow bandwidth availability for critical applications.

11 citations


Cites background from "QoS for highly dynamic Vehicular ad..."

  • ...Solutions forroutingprotocolshavebeen pro­posed to .nd a route from source to destination that .ts the QoS requirements of the applications, such as studies by Subramaniam et al.[15] and Yan et al.[19]....

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  • ...Solutions for routing protocols have been proposed to find a route from source to destination that fits the QoS requirements of the applications, such as studies by Subramaniam et al.[15] and Yan et al....

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  • ...PROBLEM STATEMENT With the increasing number of vehicles traveling in cities and limited expansion of paved roads, tra.c congestion is Table 1: Summary of Adaptive Beaconing Solutions in VANET Authors Layer Detection Control Zhou et al. [20] Lidstrom et al. [8] Mohandas et al. [11] Subramaniam et al. [15] Y an et al. [19] Bouassida et al. [2] Schmidt et al. [12] Sommer et al. [14] Lam et al. [6] Le et al....

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Journal ArticleDOI
TL;DR: UDP Transport layer protocol is used as the real-time application to satisfy bandwidth requirement while optimizing network throughput and packet drop to provide QoS for nodes running the IEEE802.11 MAC.

7 citations

Book ChapterDOI
01 Jan 2014
TL;DR: UDP and TCP protocols are used as traffic to satisfy bandwidth requirement while optimizing network throughput for providing QoS using clustering approach and results obtained through NCTUns simulator are used for analysis of throughput.
Abstract: The level of Quality of Service (QoS) guarantees in vehicular ad hoc networks (VANETs) is much more tasking and challenging as result of rapid topology changing and high mobility of mobile hosts. Thus, making multi-hop communication and as well as contention for channel access more difficult. QoS in VANETs is measured in terms of throughput, connection duration and packet loss. In this paper, UDP and TCP protocols are used as traffic to satisfy bandwidth requirement while optimizing network throughput for providing QoS using clustering approach. The results obtained through NCTUns simulator are used for analysis of throughput for both UDP and TCP traffics.

5 citations


Additional excerpts

  • ...More so, [10] proposes a routing algorithm for obtaining optimal QoS for highly dynamic VANETs....

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Dissertation
24 Apr 2012
TL;DR: Evaluation and comparison between the performance of AODV routing protocol in contrast with a new one ABE is evaluated.
Abstract: Evaluation and comparison between the performance of AODV routing protocol in contrast with a new one ABE.

4 citations

References
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Journal ArticleDOI
01 Jul 2003
TL;DR: The important role that mobile ad hoc networks play in the evolution of future wireless technologies is explained and the latest research activities in these areas are reviewed, including a summary of MANETs characteristics, capabilities, applications, and design constraints.
Abstract: Mobile ad hoc networks (MANETs) represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self-organize into arbitrary and temporary, ‘‘ad-hoc’’ network topologies, allowing people and devices to seamlessly internetwork in areas with no pre-existing communication infrastructure, e.g., disaster recovery environments. Ad hoc networking concept is not a new one, having been around in various forms for over 20 years. Traditionally, tactical networks have been the only communication networking application that followed the ad hoc paradigm. Recently, the introduction of new technologies such as the Bluetooth, IEEE 802.11 and Hyperlan are helping enable eventual commercial MANET deployments outside the military domain. These recent evolutions have been generating a renewed and growing interest in the research and development of MANET. This paper attempts to provide a comprehensive overview of this dynamic field. It first explains the important role that mobile ad hoc networks play in the evolution of future wireless technologies. Then, it reviews the latest research activities in these areas, including a summary of MANETs characteristics, capabilities, applications, and design constraints. The paper concludes by presenting a set of challenges and problems requiring further research in the future. � 2003 Elsevier B.V. All rights reserved.

1,430 citations


"QoS for highly dynamic Vehicular ad..." refers background in this paper

  • ...MANETs infrastructure less because they have no fixed access point [1], in which nodes are free to move randomly and organise themselves arbitrarily; thus the network’s topology may change rapidly and unpredictably....

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Proceedings ArticleDOI
09 Jun 2003
TL;DR: This paper analyzes a position-based routing approach that makes use of the navigational systems of vehicles and compares this approach with non-position-based ad hoc routing strategies (dynamic source routing and ad-hoc on-demand distance vector routing).
Abstract: Routing of data in a vehicular ad hoc network is a challenging task due to the high dynamics of such a network. Recently, it was shown for the case of highway traffic that position-based routing approaches can very well deal with the high mobility of network nodes. However, baseline position-based routing has difficulties to handle two-dimensional scenarios with obstacles (buildings) and voids as it is the case for city scenarios. In this paper we analyze a position-based routing approach that makes use of the navigational systems of vehicles. By means of simulation we compare this approach with non-position-based ad hoc routing strategies (dynamic source routing and ad-hoc on-demand distance vector routing). The simulation makes use of highly realistic vehicle movement patterns derived from Daimler-Chrysler's Videlio traffic simulator. While DSR's performance is limited due to problems with scalability and handling mobility, both AODV and the position-based approach show good performances with the position-based approach outperforming AODV.

912 citations


"QoS for highly dynamic Vehicular ad..." refers methods in this paper

  • ...An analysis of MANET routing protocols shows that its performance is inefficient for VANETs [3] due to its high speed nodes....

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  • ...Reliability and timely cerned factors in VANETs. arly indicates that QoS than that is achieved by eters such as delay, packet to achieve QoS....

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  • ...In VANETs, the support for QoS is to be thought as an inherent necessity rather adding such features as an afterthought....

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  • ...One of the major advantages of VANETs over MANETs is the unlimited battery power generated on the fly....

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Proceedings ArticleDOI
29 Sep 2006
TL;DR: VanetMobiSim mobility description is validated by illustrating how the interaction between featured macro- and micro-mobility is able to reproduce typical phenomena of vehicular traffic.
Abstract: In this paper, we present and describe VanetMobiSim, a generator of realistic vehicular movement traces for telecommunication networks simulators. VanetMobiSim mobility description is validated by illustrating how the interaction between featured macro- and micro-mobility is able to reproduce typical phenomena of vehicular traffic.

507 citations


"QoS for highly dynamic Vehicular ad..." refers methods in this paper

  • ...To analyse the performance of QVANO highway road scenario was created with VanetMobiSim [11] which can work on NS2 simulator [12]....

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Journal Article
TL;DR: The important role that mobile ad hoc networks play in the evolution of future wireless technologies is explained and the latest research activities in these areas of MANET_s characteristics, capabilities and applications are reviewed.
Abstract: A mobile ad hoc network (MANET), sometimes called a mobile mesh network, is a self-configuring network of mobile devices connected by wireless links. The Ad hoc networks are a new wireless networking paradigm for mobile hosts. Unlike traditional mobile wireless networks, ad hoc networks do not rely on any fixed infrastructure. Instead, hosts rely on each other to keep the network connected. It represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self-organize into arbitrary and temporary, ‘‘ad-hoc’’ network topologies, allowing people and devices to seamlessly internetwork in areas with no pre-existing communication infrastructure. Ad hoc networking concept is not a new one, having been around in various forms for over 20 years. Traditionally, tactical networks have been the only communication networking application that followed the adhoc paradigm. Recently, the introduction of new technologies such as the Bluetooth, IEEE 802.11 and Hyperlan are helping enable eventual commercial MANET deployments outside the military domain. These recent evolutions have been generating a renewed and growing interest in the research and development of MANET. This paper attempts to provide a comprehensive overview of this dynamic field. It first explains the important role that mobile ad hoc networks play in the evolution of future wireless technologies. Then, it reviews the latest research activities in these areas of MANET_s characteristics, capabilities and applications.

442 citations

Proceedings ArticleDOI
19 Dec 2003
TL;DR: In this paper, a spatially aware packet routing approach is proposed to predict permanent topology holes caused by spatial constraints and avoid them beforehand, which can be used in combination with any existing geographic forwarding protocol as an extension.
Abstract: Inter-vehicle communication can become an important building block for ITS telematics applications like safety and warning functions. Mobile ad hoc networks (MANETs) can serve as a local wireless network for exchanging information between cars for cooperative driver assistance applications. For the routing of data packets in such large-scale MANETs consisting of vehicles on the road, geographic multi-hop packet forwarding is a promising approach. However, a main drawback is that it performs poorly in networks with many topology holes. In this paper, we propose a spatially aware packet routing approach to predict permanent topology holes caused by spatial constraints and avoid them beforehand. This approach is generic and can be used in combination with any existing geographic forwarding protocol as an extension. Our simulations demonstrate that spatial awareness can significantly improve geographic forwarding performance in situations with many permanent topology holes, like in dynamic vehicle networks.

205 citations