Approximating common control channel problem in cognitive radio networks

RN Yadav, R Misra - IEEE Systems Journal, 2018 - ieeexplore.ieee.org
Cognitive radio networks (CRNs) involve an extensive exchange of control messages to
coordinate spectrum sensing, medium access, routing, etc. Static control channel allocation …

A dynamic channel aggregation strategy with a maximum aggregation number in cognitive radio networks based on channel classification

Y Zhao, S Yuan, Y Li, H Gao - Computer Communications, 2024 - Elsevier
In traditional cognitive radio networks (CRNs), users are generally divided into two
categories: primary users (PUs) and secondary users (SUs). The transmission rates of …

Optimization for centralized and decentralized cognitive radio networks

M Hasegawa, H Hirai, K Nagano… - Proceedings of the …, 2014 - ieeexplore.ieee.org
Cognitive radio technology improves radio resource usage by reconfiguring the wireless
connection settings according to the optimum decisions, which are made on the basis of the …

Power control and channel allocation in cognitive radio networks with primary users' cooperation

AT Hoang, YC Liang, MH Islam - IEEE Transactions on Mobile …, 2009 - ieeexplore.ieee.org
We consider a point-to-multipoint cognitive radio network that shares a set of channels with
a primary network. Within the cognitive radio network, a base station controls and supports a …

Dynamic channel selection in cognitive radio network with channel heterogeneity

F Hou, J Huang - 2010 IEEE Global Telecommunications …, 2010 - ieeexplore.ieee.org
We consider the channel selection problem in a cognitive radio network with heterogenous
channel availabilities at different nodes. We formulate the maximum channel selection …

Achieving k-channel-connectivity with topology control in cognitive radio networks

B Liu, X Li, H Sun, M Sheng - 2016 IEEE/CIC International …, 2016 - ieeexplore.ieee.org
In view of the unpredictable activities of primary users (PUs), connectivity guarantee is of
vital importance for the cognitive radio network (CRN). Existing works ensure the …

Cluster-based control channel allocation in opportunistic cognitive radio networks

S Liu, L Lazos, M Krunz - IEEE Transactions on Mobile …, 2012 - ieeexplore.ieee.org
Cognitive radio networks (CRNs) involve extensive exchange of control messages, which
are used to coordinate critical network functions such as distributed spectrum sensing …

Cooperative relay selection in cognitive radio networks

T Jing, S Zhu, H Li, X Xing, X Cheng… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
The benefits of cognitive radio networking (CRN) have been well recognized with the
emerging wireless applications in recent years. While many existing works assume that the …

Effective channel assignments in cognitive radio networks

J Wu, Y Dai, Y Zhao - Computer communications, 2013 - Elsevier
Cognitive radio networks (CRNs) promise to be the next generation of the key enabling
technology that enables dynamic spectrum access (DSA). The channel assignment (CA) …

Coordinated channel access in cognitive radio networks: A multi-level spectrum opportunity perspective

T Shu, M Krunz - IEEE INFOCOM 2009, 2009 - ieeexplore.ieee.org
In a cognitive radio network (CRN), spectrum opportunities should be efficiently utilized
through careful coordination between cognitive radio (CR) users. In this paper, we formulate …