A cluster-based energy efficient MAC protocol for multi-hop cognitive radio sensor networks

Xu, Ya‐Qiong; Wu, Chengyu; He, Chen; Jiang, Lingge

doi:10.1109/glocom.2012.6503168

Cited by 9 publications

(19 citation statements)

References 18 publications

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“…The absence of backup channel and dynamnic channel assignment to slots in COM-MAC makes it unsuitable for providing QoS services. In KoN-MAC [9], a new superframe has been proposed and an optimal channel subset slection mechanism has been developed that saves sensing energy. Also, data channel and backup channel assignment algorithms have been designed for data transmissions.…”

Section: Introductionmentioning

confidence: 99%

A Multiconstrained QoS Aware MAC Protocol for Cluster-Based Cognitive Radio Sensor Networks

Pritom

Sarker

Razzaque

et al. 2015

International Journal of Distributed Sensor Networks

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Traditional wireless sensor networks (WSNs) work over the unlicensed spectrum, and as the spectrum becomes increasingly crowded, they suffer from uncontrolled interference. Recently, cognitive radio based sensor networks (CRSNs) have been envisioned as a promising type of implementation that provides quality-of-service (QoS) features for data transmissions. However, key challenges remain in designing energy-efficient medium access control techniques that can achieve QoS. In this paper, we have developed a multiconstrained QoS aware MAC protocol, MQ-MAC, for a cluster based CRSN. In MQ-MAC, a data channel and a backup channel are assigned to a secondary user by the respective cluster head by using dynamic channel priorities. The user device can switch to the backup channel when a primary user appears to be operating over the data channel. Member nodes of a cluster are also prioritized with respect to the urgency of their generated data packets. Performance evaluations, carried out in NS-3 simulator, show that the proposed MQ-MAC protocol offers better performance than existing MAC protocols for CRSN.

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Section: Introductionmentioning

confidence: 99%

A Multiconstrained QoS Aware MAC Protocol for Cluster-Based Cognitive Radio Sensor Networks

Pritom

Sarker

Razzaque

et al. 2015

International Journal of Distributed Sensor Networks

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show abstract

“…To evaluate the proposed protocol, we performed a comparison study using a MATLAB simulation with three other well-known cluster-based approaches, namely CogMesh [33], cluster-based MAC [30], and KoN-MAC [34]. For comparison, we considered two major metrics for clustering (cluster size and number of channels) and three major metrics for MAC protocol (energy efficiency, throughput, and delay).…”

Section: Simulation Analysismentioning

confidence: 99%

“…This enables us to reduce the network control overhead. Most of the existing clustering schemes did not consider spectrumaware clustering [33,34], which results in the formation of unstable clusters and the wastage of network resources owing to frequent reclustering/restructuring. Moreover, we have integrated the spectrum sensing at the PHY layer with packet scheduling at the MAC layer, and nodes can therefore have up-to-date information about the spectrum availability before starting their transmission.…”

Section: Related Workmentioning

confidence: 99%

“…Therefore, the MAC protocol for CRSN should be carefully designed considering all limitations of typical sensor nodes as well as the need to fulfill the typical CRSN requirements. Recently, some researchers tried to overcome these challenges by proposing MAC protocols that were specifically designed for CRSN, such as in [34,35].…”

Section: Related Workmentioning

confidence: 99%

“…Xu et al [34] proposed a schedule-based protocol known as KoN-MAC, which is a cluster-based MAC protocol for multi-hop CRSN. KoN-MAC allows sensor nodes to dynamically select an interference-free channel for data communication.…”

Section: Related Workmentioning

confidence: 99%

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CMCS: a cross-layer mobility-aware MAC protocol for cognitive radio sensor networks

Zareei

Islam

Mansoor

et al. 2016

J Wireless Com Network

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Cognitive radio sensor networks (CRSNs) are multi-channel-capable networks that inherit some of the challenges of traditional wireless sensor networks (WSNs), such as limited power source and hardware capacity. In several CRSN applications, such as surveillance and intelligent transportation systems, node mobility is a typical assumption. However, as a node changes its physical location, spectrum mobility may also follow. Therefore, the treating of node mobility in CRSN imposes new challenges on all network layers, especially in the data link layer. In this paper, we propose a novel cross-layer mobility-aware medium access control (MAC) protocol for CRSN. We also propose an efficient spectrum-aware cluster formation and maintenance. The proposed scheme is more robust against primary users' activity as well as node mobility in a CRSN because it integrates spectrum sensing at the physical (PHY) layer with packet scheduling at the MAC layer. Simulation results show that the proposed protocol guarantees about 60 % more common channels per cluster in a higher node ratio. Moreover, the proposed MAC protocol outperforms existing protocols (e.g., CogMesh, cluster-based MAC, and KoN-MAC) in terms of the packet delivery ratio, energy consumption, and delay, by up to 5, 30, and 25 %, respectively.

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Spectrum handoff scheme based on recommended channel sensing sequence

Chen

Jiang

2013

China Commun.

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A cluster-based energy efficient MAC protocol for multi-hop cognitive radio sensor networks

Cited by 9 publications

References 18 publications

A Multiconstrained QoS Aware MAC Protocol for Cluster-Based Cognitive Radio Sensor Networks

A Multiconstrained QoS Aware MAC Protocol for Cluster-Based Cognitive Radio Sensor Networks

CMCS: a cross-layer mobility-aware MAC protocol for cognitive radio sensor networks

Spectrum handoff scheme based on recommended channel sensing sequence

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