Dynamic Channel Allocation for Dynamic Spectrum Use in Wireless Sensor Networks

Cagley, R.E.; McNally, Scott; Wiatt, Michael

doi:10.1109/milcom.2006.302410

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…For that, we propose a centralized multi-channel MAC protocol insensitive to the network topology change. In [8] and [9], the authors proposed a dynamic channel allocation based on agreement established between each sender and receiver nodes. Such approach may be suitable in light network but in dense network frequency negotiation messages can involve a considerable unnecessary overhead.…”

Section: Related Workmentioning

confidence: 99%

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Energy Evaluation of PMCMTP for Large-Scale Wireless Sensor Networks

Slimane

Song

Koubâa³

et al. 2010

2010 Fifth International Conference on Systems and Networks Communications

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One of the major concerns in wireless sensor networks (WSNs) is improving the network lifetime. This paper addresses the problem of energy saving in an IEEE 802.15.4a large-scale full mesh WSNs based on UWB technology. It presents a three-tiered network architecture to facilitate resource sharing and to ensure load and energy balancing. With a particular focus on medium access control (MAC) protocols, we propose a multi-channel MAC protocol, Prioritized Multi-Channel MultiTime slot MAC protocol (PMCMTP), that due to its intelligent management of spectrum resource and time slots, can simultaneously improve energy efficiency and network quality-of-service (QoS). To prove energy efficiency and QoS support of PMCMTP, we implement it in a discrete-time simulator built in JAVA. Simulations results show that PMCMTP succeeds to save energy and to enhance network QoS with a low overhead.

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Section: Related Workmentioning

confidence: 99%

“…1) Control channel allocation: To avoid control channel congestion [8], we propose to statically assign one control channel to each PAN. The emission power density of the UWB signals is less than -41.3 dBm/MHz [4].…”

Section: A First Level Of Channels Allocationmentioning

confidence: 99%

Energy Evaluation of PMCMTP for Large-Scale Wireless Sensor Networks

Slimane

Song

Koubâa³

et al. 2010

2010 Fifth International Conference on Systems and Networks Communications

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“…Moreover, we note that MMSN's schemes allocate channels in static way which limits channel utilities as a node does not permanently use its assigned channel. In [5] and [6], the authors proposed a dynamic channel allocation based on agreement established between each sender and receiver nodes. Such approach may be suitable in light network but in dense network frequency negotiation messages can involve a considerable unnecessary overhead (e.g negotiation message retransmissions following their reception failure).…”

Section: Introductionmentioning

confidence: 99%

Control and data channels allocation for Large-Scale UWB-based WSNs

Slimane

Song

Koubâa

2009

2009 First International Conference on Communications and Networking

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Abstract-Resource allocation is a critical issue for Wireless Sensor Networks (WSNs) especially for Ultra-Wide Band (UWB) based networks. In this paper, we present frequency allocation scheme for an efficient spectrum management that is able to statically assign control channels and dynamically reuse data channels for Personal Area Networks (PANs) inside a LargeScale WSN based on UWB technology. The frequency allocation problem is decomposed into two sub-problems: static control channel assignment and dynamic data channel allocation. The goal is two-folded: first, we aim to avoid congestion of control channel, second, to maximize simultaneous communications without suffering from interference in order to enhance throughput, decrease delay and minimize energy consumption.

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