Congestion Control to Achieve Optimal Broadcast Efficiency in VANETs

Ye, F.; Yim, R.; Zhang, J.; Roy, Sumit

doi:10.1109/icc.2010.5501783

Cited by 29 publications

(20 citation statements)

References 12 publications

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“…Increase period blindly, if medium congested: If the algorithm determines that∆ v > 2 T v , it assumes that the medium is congested 11 and increases the period irrespective of the result of Λ − . The motivation behind the step is that if the age is greater than twice the period then the age must be achievable at a much larger period.…”

Section: Algorithm 1 Update Broadcast Period At Node Vmentioning

confidence: 99%

“…In [10], a satellite broadcasts to terminals to reduce rate on detection of congestion. More recent work [11], perhaps the most directly related, provides control strategies in vehicular networks to maximize the average broadcast rate at which packets are received by a vehicle from its neighbors. The analysis assumes a saturated load (MAC always has a packet to transmit) and does not consider queuing delays.…”

Section: Introductionmentioning

confidence: 99%

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Minimizing age of information in vehicular networks

Kaul

Gruteser

Rai

et al. 2011

2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks

767

561

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Abstract-Emerging applications rely on wireless broadcast to disseminate time-critical information. For example, vehicular networks may exchange vehicle position and velocity information to enable safety applications. The number of nodes in one-hop communication range in such networks can be very large, leading to congestion and undesirable levels of packet collisions. Earlier work has examined such broadcasting protocols primarily from a MAC perspective and focused on selective aspects such as packet error rate. In this work, we propose a more comprehensive metric, the average system information age, which captures the requirement of such applications to maintain current state information from all other nearby nodes. We show that information age is minimized at an optimal operating point that lies between the extremes of maximum throughput and minimum delay. Also, via simulations we show that it cannot be achieved in 802.11 networks through pure MAC techniques such as contention window adaptation. This motivates our design of an applicationlayer broadcast rate adaptation algorithm. It uses local decisions at nodes in the network to adapt their messaging rate to keep the system age to a minimum. Our simulations and experiments with 300 ORBIT nodes show that the algorithm effectively adapts the messaging rates and minimizes the system age.

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Section: Algorithm 1 Update Broadcast Period At Node Vmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Minimizing age of information in vehicular networks

Kaul

Gruteser

Rai

et al. 2011

2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks

767

561

View full text Add to dashboard Cite

show abstract

“…Using the case study of adhoc-based network, they have proved that their method offered better congestion control. Under the constraint of the fading channel, Ye et al [16] used probability theory to show that the congestion control model for vehicular network offered improvement in the energy efficiency and data packet transmission over adhocbased networks. Similar kind of work was carried out by Bouassida and Shawky [17] .They presented dynamic scheduling algorithm based on the priority of the messages.…”

Section: Related Workmentioning

confidence: 99%

Congestion Control using Cross layer and Stochastic Approach in Distributed Networks

Selvarani¹,

Vinodha²

2017

ijacsa

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Abstract-In recent past, the current Internet architecture has many challenges in supporting the magnificent network traffic. Among the various that affect the quality of communication in the massive architecture the challenge in maintaining congestion free flow of traffic is one of the major concerns. In this paper, we propose a novel technique to address this issue using cross layer paradigm based on stochastic approach with extended markovian model. The cross layer approach will bridge the physical layer, link layer, network layer and transport layer to control congestion. The resource provisioning operation will be carried out over link layer and the mechanism of exploring the congestion using stochastic approach will be implemented over the network layer. The Markov modeling is adopted to identify the best routes amidst of highly congested paths and it is carried out at the transport layer. An analytical research methodology will be adopted to prove that it is feasible to develop a technique that can identify the origination point of congestion and share the same with the entire network. It is found that this approach for congestion control is effective with respect to end to end delay, packet delivery ratio and processing time.

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“…Generally, MAC protocols fall into one of two broad categories: contention-based and contention-free. In contention-based protocols, each node can try to access the channel when it has data to transmit using the carrier sensing mechanism [5]. Several neighboring nodes can sense a free channel, and so decide to access and transmit their data at the same time, which generates collisions at the destination nodes.…”

Section: Introductionmentioning

confidence: 99%

A Survey and Analysis on TDMA Based MAC Protocols for VANETs

Batth¹

2017

IJRASET

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Vehicular Ad hoc Networks, known as VANETs, are deployed to decrease the probability of road accidents and to improve passenger comfort by allowing vehicles to exchange different kinds of data messages between the mobile vehicles and the installed infrastructure. VANETs facilitate improved traffic safety and efficiency. Each vehicle can exchange information to inform other vehicles about the current status of the traffic flow or a dangerous situation such as an accident. Moreover, traffic safety applications need a reliable communication scheme with minimal transmission collision, which leads to the need for an efficient and reliable MAC. Design MAC for VANETs is a complex task due to the high mobility of the nodes, the frequent changes in topology, the lack of an infrastructure, and various QoS requirements. In the past years, various Time Division Multiple Access (TDMA) based medium access control protocols have been proposed for VANETs in an attempt to assure that all the vehicles have sufficient time to send safety messages with minimum collisions and to reduce the end-to-end delay and the packet loss ratio. In this survey paper a qualitative comparison provided in order to improve the performance of TDMA-based MAC protocols for V2V communication and also focused on the detailed characteristics of these protocols, their benefits and limitations. Keywords: Ad hoc, DSRC, IEEE 802.11p, MAC Protocols, TDMA, QoS, V2V, V2I, VANET. I. INTRODUCTIONVehicular ad hoc networks (VANETs) are emerging as a promising technology for providing safety and comfort applications for vehicular transportation. VANETs are receiving growing attention from the research community and from the transportation industry because of their great potential to improve traffic safety on roads. They can also be used to improve traffic management conditions and to provide on-board infotainment such as Internet access, video streaming, etc. VANETs are an example of Mobile Ad hoc Networks (MANETs) but with their own specification: high node mobility with constrained movements and the mobile nodes have ample energy and computing power (i.e. Storage and processing) [1]. In VANETs, communications can either be between vehicles V2V (Vehicle To Vehicle) or between vehicles and roadside units V2I [2] (Vehicle to Infrastructure). The applications for V2V and V2I can be divided into the following three services: safety services, traffic management and useroriented services [3], [4]. Safety services have special requirements in terms of quality of service. In fact, bounded transmission delays as well as low access delays are mandatory in order to offer the highest possible level of safety. At the same time, useroriented services need a broad bandwidth. Medium Access Control will play an important role in satisfying these requirements. In VANETs, the nodes share a common wireless channel by using the same radio frequencies and therefore an inappropriate use of the channel may lead to collisions and a waste of bandwidth. Hence, channel sharing is the...

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Congestion Control to Achieve Optimal Broadcast Efficiency in VANETs

Cited by 29 publications

References 12 publications

Minimizing age of information in vehicular networks

Minimizing age of information in vehicular networks

Congestion Control using Cross layer and Stochastic Approach in Distributed Networks

A Survey and Analysis on TDMA Based MAC Protocols for VANETs

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