Modeling and analysis for spectrum handoffs in cognitive radio networks

LC Wang, CW Wang, CJ Chang - IEEE Transactions on Mobile …, 2011 - ieeexplore.ieee.org
In this paper, we present an analytical framework to evaluate the latency performance of
connection-based spectrum handoffs in cognitive radio (CR) networks. During the …

Modeling and analysis for reactive-decision spectrum handoff in cognitive radio networks

CW Wang, LC Wang, F Adachi - 2010 IEEE Global …, 2010 - ieeexplore.ieee.org
This paper investigates how to characterize the effect of multiple spectrum handoff delay on
the extended data delivery time of the secondary users' connections in cognitive radio (CR) …

Analysis of reactive spectrum handoff in cognitive radio networks

CW Wang, LC Wang - IEEE journal on selected areas in …, 2012 - ieeexplore.ieee.org
In this paper, we present an analytical framework to evaluate the effects of multiple spectrum
handoffs on channel utilization and latency performances in cognitive radio (CR) networks …

Spectrum handoff for cognitive radio networks: Reactive-sensing or proactive-sensins?

LC Wang, CW Wang - 2008 IEEE International Performance …, 2008 - ieeexplore.ieee.org
In this paper, we will investigate the spectrum handoff schemes for the cognitive radio
networks. Spectrum handoff occurs when the primary users appear and the secondary users …

Analytical modeling for spectrum handoff decision in cognitive radio networks

S Zahed, I Awan, A Cullen - Simulation modelling practice and theory, 2013 - Elsevier
Cognitive Radio (CR) is an emerging technology used to significantly improve the efficiency
of spectrum utilization. Although some spectrum bands in the primary user's licensed …

On the performance of spectrum handoff for link maintenance in cognitive radio

LC Wang, A Chen - 2008 3rd International symposium on …, 2008 - ieeexplore.ieee.org
Cognitive radio (CR) has the potential for resolving the spectrum scarcity issue in wireless
communications. A CR device can establish unharmful links in the spectrum of the legacy …

Probability-based centralized device for spectrum handoff in cognitive radio networks

M Aggarwal, T Velmurugans, M Karuppiah… - IEEE …, 2019 - ieeexplore.ieee.org
Wireless communication technology is the future of communication, but rapid growth in
wireless technology has led to a scarcity in the spectrum. Thus, the world has moved away …

Joint optimization of spectrum handoff scheduling and routing in multi-hop multi-radio cognitive networks

W Feng, J Cao, C Zhang, C Liu - 2009 29th IEEE International …, 2009 - ieeexplore.ieee.org
Spectrum handoff causes performance degradation of the cognitive network when the
primary user reclaims its right to access the licensed spectrum. In a multi-hop cognitive …

[HTML][HTML] Reactive spectrum handoff combined with random target channel selection in cognitive radio networks with prioritized secondary users

AE Gouda, SI Rabia, AY Zakariya, MA Omar - Alexandria engineering …, 2018 - Elsevier
Cognitive radio aims at improving spectrum utilization by allowing secondary users to
access primary user's spectrum. The delay time of secondary users due to multiple …

Sequential sensing based spectrum handoff in cognitive radio networks with multiple users

W Zhang, CK Yeo - Computer Networks, 2014 - Elsevier
Spectrum handoff occurs when the primary users appear in the licensed spectrum
temporarily occupied by the secondary users and aims to help the secondary users to …