A Distributed MAC Protocol Using Virtual Control Channels for CRSNs

Lee, Young-Doo; Koo, Insoo

doi:10.1007/s11277-012-0858-1

Cited by 2 publications

(4 citation statements)

References 26 publications

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“…In the proposed framework, time is divided into super frames; each super frame consists of frames. This sort of structure is used in the IEEE 802.22 wireless regional area network (WRAN) MAC framework [12]. Though the exterior construction is similar to that of the WRAN structure, we organize the frames in a different way to fit the proposed protocol as follows: frame 0 is used for discovering the available channels of neighbors.…”

Section: General Frame Structurementioning

confidence: 99%

“…A number of proposals with a variety of unique ideas have already emerged so far for CRNs. Those proposals comprise both centralized [10,11] and decentralized approaches [12,13], which may be further categorized on the basis of common control channel (CCC) usage. Though the centralized network approach using a dedicated common control channel (DCCC) simplifies the task of spectrum management, assignment, and utilization, it has been proven impractical in a CRN.…”

Section: Introductionmentioning

confidence: 99%

“…Keeping the above-mentioned constraints in mind, several research articles have been proposed, primarily aimed at reducing coordination overhead while maintaining spectrum management efficiency at the level of centralized solutions. One group of such proposals considers choosing a CCC from 2 Mathematical Problems in Engineering among the available channels in a neighborhood in designing distributed MAC protocols for CRN [12,14]. Despite the remarkable success over their centralized counterparts, as well as over the protocols using a DCCC, the protocols that consider a CCC or coordination channel have drawbacks in CR application systems.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Fully Distributed Resource Allocation Mechanism for CRNs without Using a Common Control Channel

Mahmud¹,

Lee²,

Koo

2015

Mathematical Problems in Engineering

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Spatial and temporal variations in the available spectrum for cognitive devices add additional complexity in designing a medium access strategy for cognitive radio (CR) networks. To ease this complication, a common control channel (CCC) is often used as a common platform to exchange control messages, so the CR users can make decisions concerning resource allocation. Much of the literature in this area opts for forming groups and negotiating a CCC from the available channels rather than considering a dedicated common control channel. However, if a primary user appears on the CCC, all the CR users have to vacate that channel and negotiate another CCC, and thus overhead continues to grow with an agile primary network. We propose a medium access control protocol that can work in the absence of a CCC and reduce the possible overhead to a greater extent. In our proposed protocol, CR users take advantage of similar spectrum availability in their neighborhood for resource utilization. We also propose a contention-based spectrum allocation mechanism that works in a distributed manner over different available channels. Simulation results show that this approach can reduce broadcast overhead significantly while maintaining connectivity success similar to its counterparts.

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Section: General Frame Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Fully Distributed Resource Allocation Mechanism for CRNs without Using a Common Control Channel

Mahmud¹,

Lee²,

Koo

2015

Mathematical Problems in Engineering

Self Cite

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“…The most relevant work in this respect is [ 67 ] in which dedicated control channels are assigned by cluster heads to members based on the sensing results of the cluster members. As in traditional clustering algorithms, the manner in which the deafness issue is overcome is not mentioned.…”

Section: Routing In Crsnsmentioning

confidence: 99%

Assessing Routing Strategies for Cognitive Radio Sensor Networks

Zubair

Fisal

Baguda

et al. 2013

Sensors

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Interest in the cognitive radio sensor network (CRSN) paradigm has gradually grown among researchers. This concept seeks to fuse the benefits of dynamic spectrum access into the sensor network, making it a potential player in the next generation (NextGen) network, which is characterized by ubiquity. Notwithstanding its massive potential, little research activity has been dedicated to the network layer. By contrast, we find recent research trends focusing on the physical layer, the link layer and the transport layers. The fact that the cross-layer approach is imperative, due to the resource-constrained nature of CRSNs, can make the design of unique solutions non-trivial in this respect. This paper seeks to explore possible design opportunities with wireless sensor networks (WSNs), cognitive radio ad-hoc networks (CRAHNs) and cross-layer considerations for implementing viable CRSN routing solutions. Additionally, a detailed performance evaluation of WSN routing strategies in a cognitive radio environment is performed to expose research gaps. With this work, we intend to lay a foundation for developing CRSN routing solutions and to establish a basis for future work in this area.

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A Distributed MAC Protocol Using Virtual Control Channels for CRSNs

Cited by 2 publications

References 26 publications

A Fully Distributed Resource Allocation Mechanism for CRNs without Using a Common Control Channel

A Fully Distributed Resource Allocation Mechanism for CRNs without Using a Common Control Channel

Assessing Routing Strategies for Cognitive Radio Sensor Networks

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