Scheduling algorithm based on preemptive priority and hybrid data structure for cognitive radio technology with vehicular
            <i>ad hoc</i>
            network

Pal, Raghavendra; Prakash, Arun; Tripathi, Rajeev; Naik, Kshirasagar

doi:10.1049/iet-com.2019.0574

Cited by 9 publications

(5 citation statements)

References 22 publications

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“…The proposed scheme performs message dissemination using the RSU as a supplementary tool when a vehicle is connected to an RSU [23][24][25][26][27]. V2I communication refers to communication between vehicles and RSUs within the RSU's communication range.…”

Section: V2i Communicationmentioning

confidence: 99%

Efficient Dissemination of Safety Messages in Vehicle Ad Hoc Network Environments

et al. 2023

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The number of people owning vehicles has been steadily growing, resulting in increased numbers of vehicles on the roads, making roads more congested, and increasing the risk of accidents. In addition, heavy rain, snow, and fog have increased due to abnormal weather caused by global warming. These bad weather conditions can also affect the safety of vehicles and drivers. The need to disseminate safety messages on the social Internet of Vehicles due to these problems has been steadily increasing. In this paper, we propose an efficient safety message dissemination scheme that focuses on urban environments with high vehicle density and mobility to address these problems. The proposed scheme reduces packet loss by considering frequent cluster departures and subscriptions through an efficient cluster management technique. In a vehicle-to-vehicle environment, the dissemination of safety messages is divided into intracluster and intercluster emergencies, as well as a general safety message dissemination technique. In a vehicle-to-infrastructure environment, the proposed scheme reduces the number of processing requests and duplicate messages made to roadside units (RSUs) through a request operation process for each vehicle and an RSU scheduling technique. We conducted several performance evaluations of message packet loss and the number of RSU processing requests to demonstrate the superiority of the proposed scheme.

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Section: V2i Communicationmentioning

confidence: 99%

Efficient Dissemination of Safety Messages in Vehicle Ad Hoc Network Environments

et al. 2023

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“…The mechanism adopted for data process is based on the mean and consistency of channel occupancy in CR‐VANET. Authors in [9, 10] discuss about various MAC protocols and channel switching mechanisms. Mobility and range based clustering have found significant importance in [11, 12].…”

Section: Related Workmentioning

confidence: 99%

Deep reinforcement learning based optimal channel selection for cognitive radio vehicular ad‐hoc network

Pal¹,

Gupta

Prakash

et al. 2020

IET Communications

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“…However, for example, if SUs try to transmit both (relatively) time-sensitive traffic and non-time-sensitive traffic, then it is necessary for a protocol to transmit data packets having traffic with higher priority first ahead of those having traffic with lower priority. A number of protocols are proposed to transmit data packets having traffic with multiple classes of priorities in slotted multi-channel CRN [13][14][15][16][17][18]. In [13], a mixed preemptive/non-preemptive M/G/1 queueing model is proposed in CRN.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, in order to minimize starvation, (1) a low-priority SU can aggregate a certain number of idle primary channels to transmit its data packet and (2) a certain number of channels are reserved for low-priority SUs. In [17], a scheduling algorithm is proposed in vehicular ad hoc network (VANET). Here, a road-side unit (RSU) allocates the whole dedicated short range communication (DSRC) spectrum channel to high-priority traffic such as safety traffic approaching the expiration time and then allocates an idle cognitive channel to low-priority traffic such as the infotainment traffic.…”

Section: Introductionmentioning

confidence: 99%

“…In [18], a spectrum handoff prioritization using preemptive/nonpreemptive based dynamic spectrum access is proposed. However, the protocols proposed in [13][14][15][16][17][18] consider the transmission of data packets having traffic with multiple classes of priorities in a centralized CRN environment. In a centralized environment, each SU is connected to a central controller based on a one-to-one connection forming a star topology.…”

Section: Introductionmentioning

confidence: 99%

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An Efficient Reservation-Based MAC Protocol for Multi-Priority Traffic in Slotted Multi-Channel Distributed Cognitive Radio Networks

Lee

2020

IEEE Access

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Cognitive radio network (CRN) is developed to improve the scarce but under-utilized wireless spectrum due to rapidly developing wireless networks. This paper proposes a reservation-based MAC protocol for traffic having multiple classes of priorities in CRN. One channel called control channel is used for contention resolution between secondary users (SUs). In this protocol, an SU having data packets with different class of priorities transmits its control packet containing the priority value through the control channel. The order of access to primary channels is determined based on the priority of the data packet and the position of the non-colliding control packet. The access order determines the idle primary channel that an SU uses to transmit its data packet. In this protocol, there is no performance degradation either from SUs choosing a busy primary channel or multiple SUs choosing the same idle primary channel. Moreover, even though the SU cannot transmit its data packet because there is no idle primary channel that the SU can utilize, it can re-transmit its control packet without having concern over additional collision. Multistate Markov chain is used to analyze the throughput and performance of the proposed protocol and the analytical results show that higher priority traffic can be transmitted first ahead of the lower priority traffic. Notwithstanding the above, the maximum sum of the throughput of SUs with different classes of priorities is almost equal to the available capacity, and therefore the proposed protocol can take advantage of almost all of the available portion of primary channels. INDEX TERMS Reservation MAC, multi-priority traffic, cognitive radio networks, multi-channel MAC protocol, common control channel

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Scheduling algorithm based on preemptive priority and hybrid data structure for cognitive radio technology with vehicular ad hoc network

Cited by 9 publications

References 22 publications

Efficient Dissemination of Safety Messages in Vehicle Ad Hoc Network Environments

Efficient Dissemination of Safety Messages in Vehicle Ad Hoc Network Environments

Deep reinforcement learning based optimal channel selection for cognitive radio vehicular ad‐hoc network

An Efficient Reservation-Based MAC Protocol for Multi-Priority Traffic in Slotted Multi-Channel Distributed Cognitive Radio Networks

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