Establishing Strict Priorities in IEEE 802.11p WAVE Vehicular Networks

Barradi, Mohssin; Hafid, Abdelhakim; Gallardo, J.R.

doi:10.1109/glocom.2010.5683147

Cited by 31 publications

(24 citation statements)

References 14 publications

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“…With this information, the necessity to perform retransmission is evaluated. These are implemented in Enhanced Distributed Channel Access (EDCA) [39]. Arbitration Inter Frame Space Number (AIFSN) parameter associated to the different access categories is also implemented based on strict policies for access based on the suggested framework.…”

Section: Network Selectionmentioning

confidence: 99%

Cognitive radio network in vehicular ad hoc network (VANET): A survey

et al. 2016

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Cognitive radio network and Vehicular Ad hoc Network (VANET) are recent emerging concepts in wireless networking. Cognitive radio network obtains knowledge of its operational geographical environment to manage sharing of spectrum between primary and secondary users, while VANET shares emergency safety messages among vehicles to ensure safety of users on the road. Cognitive radio network is employed in VANET to ensure the efficient use of spectrum, as well as to support VANET's deployment. Random increase and decrease of spectrum users, unpredictable nature of VANET, high mobility, varying interference, security, packet scheduling and priority assignment are the challenges encountered in a typical cognitive VANET environment. This paper provides survey and critical analysis on different challenges of cognitive radio VANET, with discussion on the open issues, challenges and performance metrics, for different cognitive radio VANET applications.

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Section: Network Selectionmentioning

confidence: 99%

Cognitive radio network in vehicular ad hoc network (VANET): A survey

et al. 2016

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“…However, as the network density increases, the delay also increases because the fixed probability cannot resolve the high contention degree at the higher network density. DB shows the semi-best performance because it can overcome the limits of PB by using 17 Single hop propagation delays of four broadcasts measured in low, medium, and high densities with four broadcast senders the adaptive transmission probability, depending on the network density. If the network density is higher, the probability becomes lower, which can control the degree of congestion competition.…”

Section: Additional Comparison With Different Broadcast Schemes With mentioning

confidence: 99%

“…According to the assigned priorities, the messages are differently scheduled so that more important or higher priority messages are transmitted first rather than less important or lower priority messages [14][15][16][17][18]. Along with this context, a warning message is classified as the highest priority message, to be transmitted earlier than any other messages.…”

Section: Priority-based Broadcastmentioning

confidence: 99%

“…Most of the intelligent broadcast schemes introduced in this paper's literature [11][12][13][14][15][16][17][18][19][20] are designed to select a good relay to reduce of redundant broadcast messages. Priority-based, probabilistic-based, counter-based, and other broadcast schemes [14][15][16][17][18][19][20] focus on efficiently suppressing broadcast message redundancy to reduce collision rates.…”

Section: Introductionmentioning

confidence: 99%

“…Priority-based, probabilistic-based, counter-based, and other broadcast schemes [14][15][16][17][18][19][20] focus on efficiently suppressing broadcast message redundancy to reduce collision rates. To reduce the redundant messages, distancebased broadcast schemes [11][12][13] select the furthest node as a relay node to minimize the number of hops and to decrease collision rates by controlling the size of the contention window based on distance.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Limited area broadcast for warning message delivery over vehicular ad-hoc networks

Kang

Virdaus

Shin

et al. 2016

J Wireless Com Network

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Vehicular ad hoc networks have been developed in consideration of advancing driving safety. In driving-safety applications, rapid dissemination of warning messages is highly demanded to avoid accidents involving incoming vehicles. Broadcast transmission is considered the most appropriate technique to spread warning messages because it can simultaneously reach all neighboring nodes within a transmission range using only a brief wireless media access. However, blindly broadcasting redundant messages may severely overcrowd wireless media channels and provoke transmission collisions; this is known as the broadcast storm problem. In order to reduce broadcast redundancy, broadcasting must be intelligently controlled. Simultaneously, an intelligent broadcast scheme should aim to reduce the number of hops needed to arrive at a destination, to achieve smaller propagation delay. In this paper, we observed the behavior of a few broadcast schemes and found that their performances can be explained as limiting a space to control the number of contentions in broadcasting. From the observation, we propose a limited area-based (LAB) scheme to achieve a shorter propagation time as well as a smaller number of redundant broadcast messages. The proposed scheme can maintain a proper collision rate to obtain a faster propagation time by adjusting the size of an area in which broadcasting nodes belong. Performance evaluation results from simulation show that the proposed scheme is feasible and reasonable.

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