Cooperative Power and Contention Control MAC Protocol in Multichannel Cognitive Radio Ad Hoc Networks

Wu, Chien Min; Su, Hui Kai; Leou, Maw Lin; Liaw, Yi Ching; Lo, Chih Pin

doi:10.1109/imis.2014.39

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…There have been a number of protocols proposed for rendezvous in CRNs, in which each pair of nodes establishes rendezvous separately [78]. Many rendezvous protocols rely on a common control channel (CCC), which is used by the nodes to exchange control messages [74,83].…”

Section: Rendezvousmentioning

confidence: 99%

Formation and inter-piconet communications in cognitive personal area networks

Rahman¹

2021

Preprint

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This dissertation presents a new approach for achieving group rendezvous with a coordinator node towards forming a Cognitive Personal Area Network (CPAN) by an arbitrary number of nodes. We propose a protocol for the time to form CPAN in which the nodes join the coordinator simultaneously instead of sequentially. Specifically, we develop an analytical model and derive the distribution of time to form CPAN under the considerations of random arrivals of nodes and their random times to rendezvous with coordinator. We also investigate the CPAN formation time by considering the random activity of primary user (PU). Besides operating in a CPAN, the nodes may have traffic destined to the nodes of other CPAN. In this dissertation, we also propose a bridging protocol in which a shared (bridge) node routes the inter-CPAN traffic between two CPANs. As the bridge node shares its time between two CPANs, the bridge traffic gets priority over that of ordinary nodes in both CPANs. We consider a single, unidirectional bridge because the traffic in the opposite direction can easily be accommodated by having another bridge node. We develop an analytical model based on probabilistic modeling and queueing theory to evaluate the performance of the bridging protocol. We validate the network performance by analyzing the waiting time of local and non-local packets and how the node or bridge transmission is affected by the collision with primary source activity. Finally, we propose a low-overhead two-way bridging scheme for two-hop CPANs, which is more realistic and can be used a basis for routing inter-CPAN traffic in a multihop network. In this advance bringing protocol, the bridge switches between the CPANs without any predefined arrangement, which resulted in simplified bridge scheduling and increased fairness for all nodes. We also analyze its performance through probabilistic analysis and renewal theory. We show that the CPANs are indeed decoupled in terms of synchronization, however the performance of both local and non-local traffic in either CPAN depends on the traffic intensity in both CPANs as well as on the portion of traffic targeting non-local destinations

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Section: Rendezvousmentioning

confidence: 99%

Formation and inter-piconet communications in cognitive personal area networks

Rahman¹

2021

Preprint

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“…The interference between the primary and the secondary nodes can be reduced by embedding the later with sensors that are capable of spectrum sensing and opportunistic accessing confined to fixed number of channels. A technique based on the cooperative power contention control has been proposed in [11] based on the monitor nodes which assess the channel states as per the number of RTS/CTS frames exchanged between the secondary users. The transmission ranges are accustomed in such a way that it eliminates the interference with the primary users.…”

Section: Hidden Primary User Problem and Cooperative Sensingmentioning

confidence: 99%

State-based probabilistic spectrum sensing in Cognitive Radio Networks

Ujjwal

Bhargavi

2015

2015 IEEE International Advance Computing Conference (IACC)

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Cognitive Radio networks (CRNs) implement dynamic spectrum sensing and management techniques to address the underutilization of limited available spectrum in wireless networks. Both dynamic and opportunistic spectrum sensing techniques are frequently used by the cognitive radios (CRs) to identify the spectral holes in licensed spectrum of the primary users (PUs) and allocate these bands to the unlicensed secondary users (SUs). In this paper we have presented a state-based probabilistic sensing model for primary and secondary user nodes to access the communication channel. Simulations are performed to measure the uniform and cumulative distribution functions the degree of the primary nodes, and channel accessing probabilities for the secondary nodes.

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Performance analysis of opportunistic CSMA schemes in cognitive radio networks

Jung

Lee

2016

Wireless Netw

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Cooperative Power and Contention Control MAC Protocol in Multichannel Cognitive Radio Ad Hoc Networks

Cited by 7 publications

References 14 publications

Formation and inter-piconet communications in cognitive personal area networks

Formation and inter-piconet communications in cognitive personal area networks

State-based probabilistic spectrum sensing in Cognitive Radio Networks

Performance analysis of opportunistic CSMA schemes in cognitive radio networks

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