Probabilistic Path Selection in Opportunistic Cognitive Radio Networks

Khalifé, Hicham; Ahuja, Satyajeet Singh; Malouch, Naceur; Krunz, Marwan

doi:10.1109/glocom.2008.ecp.931

Cited by 130 publications

(79 citation statements)

References 5 publications

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“…According to Shannon's theorem, the channel capacity does not only depend on its bandwidth, but it also considers the received signal strength and channel interference [24]. The maximum capacity that a channel ck can provide between sensors si and sj can be computed using the following equation:…”

Section: Channel Assignment For Sensor-sensor Coordinationmentioning

confidence: 99%

IDMMAC: Interference Aware Distributed Multi-Channel MAC Protocol for WSAN

2015

J Inf Process Syst

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In this paper, an interference aware distributed multi-channel MAC (IDMMAC) protocol is proposed for wireless sensor and actor networks (WSANs). The WSAN consists of a huge number of sensors and ample amount of actors. Hence, in the IDMMAC protocol a lightweight channel selection mechanism is proposed to enhance the sensor's lifetime. The IDMMAC protocol divides the beacon interval into two phases (i.e., the adhoc traffic indication message (ATIM) window phase and data transmission phase). When a sensor wants to transmit event information to the actor, it negotiates the maximum packet reception ratio (PRR) and the capacity channel in the ATIM window with its 1-hop sensors. The channel negotiation takes place via a control channel. To improve the packet delivery ratio of the IDMMAC protocol, each actor selects a backup cluster head (BCH) from its cluster members. The BCH is elected based on its residual energy and node degree. The BCH selection phase takes place whenever an actor wants to perform actions in the event area or it leaves the cluster to help a neighbor actor. Furthermore, an interference and throughput aware multichannel MAC protocol is also proposed for actor-actor coordination. An actor selects a minimum interference and maximum throughput channel among the available channels to communicate with the destination actor. The performance of the proposed IDMMAC protocol is analyzed using standard network parameters, such as packet delivery ratio, end-to-end delay, and energy dissipation, in the network. The obtained simulation results indicate that the IDMMAC protocol performs well compared to the existing MAC protocols.

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Section: Channel Assignment For Sensor-sensor Coordinationmentioning

confidence: 99%

IDMMAC: Interference Aware Distributed Multi-Channel MAC Protocol for WSAN

2015

J Inf Process Syst

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“…Geographically based routing proposal for CRN's is proposed in [11], is derived from multihop, multi-channel adhoc and mesh networks. The proposed routing protocol focuses on most stable path that is indirectly achieved by simultaneous transmission over the multiple available channels and meeting the flow demand of CR node.…”

Section: Related Workmentioning

confidence: 99%

Multi-Path Routing and Channel Assignment Framework for Mesh Cognitive Radio Network (MRCAMC)

Ali¹,

Iqbal²,

Baig

et al. 2011

IJWMN

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“…However, these approaches are not suited for CR operation as there is no support for simultaneously choosing the spectrum band (each of which may have several channels), or considering the effect routes may have on other licensed devices sharing the spectrum. To address these issues, several works have been recently proposed for CR networks [7][9] [13] [16]. In our proposed approach, we consider several key CR-specific performance metrics that are not incorporated in these related works.…”

Section: Introductionmentioning

confidence: 99%

CRP: A Routing Protocol for Cognitive Radio Ad Hoc Networks

Chowdhury

Akyildiz

2011

IEEE J. Select. Areas Commun.

202

117

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Abstract-Cognitive radio (CR) technology enables the opportunistic use of the vacant licensed frequency bands, thereby improving the spectrum utilization. However, the CR operation must not interfere with the transmissions of the licensed or primary users (PUs), and this is generally achieved by incurring a trade-off in the CR network performance. In order to evaluate this trade-off, a distributed CR routing protocol for ad hoc networks (CRP) is proposed that makes the following contributions: (i) explicit protection for PU receivers that are generally not detected during spectrum sensing, (ii) allowing multiple classes of routes based on service differentiation in CR networks, and (iii) scalable, joint route-spectrum selection. A key novelty of CRP is the mapping of spectrum selection metrics, and local PU interference observations to a packet forwarding delay over the control channel. This allows the route formation undertaken over a control channel to capture the environmental and spectrum information for all the intermediate nodes, thereby reducing the computational overhead at the destination. Results reveal the importance of formulating the routing problem from the viewpoint of safeguarding the PU communication, which is a unique feature in CR networks.

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Probabilistic Path Selection in Opportunistic Cognitive Radio Networks

Cited by 130 publications

References 5 publications

IDMMAC: Interference Aware Distributed Multi-Channel MAC Protocol for WSAN

IDMMAC: Interference Aware Distributed Multi-Channel MAC Protocol for WSAN

Multi-Path Routing and Channel Assignment Framework for Mesh Cognitive Radio Network (MRCAMC)

CRP: A Routing Protocol for Cognitive Radio Ad Hoc Networks

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