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 …

Load-balancing spectrum decision for cognitive radio networks

LC Wang, CW Wang, F Adachi - IEEE Journal on Selected …, 2011 - ieeexplore.ieee.org
In this paper, we present an analytical framework to design system parameters for load-
balancing multiuser spectrum decision schemes in cognitive radio (CR) networks. Unlike the …

Opportunistic spectrum scheduling for multiuser cognitive radio: a queueing analysis

MM Rashid, MJ Hossain, E Hossain… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
We develop a queueing analytic framework to study the data link layer quality-of-service
performance measures for cognitive radio users in an infrastructure-based dynamic …

Spectrum management techniques with QoS provisioning in cognitive radio networks

LC Wang, CW Wang - IEEE 5th International Symposium on …, 2010 - ieeexplore.ieee.org
In this paper, we discuss the spectrum management technologies including spectrum
sensing, spectrum decision, spectrum sharing, and spectrum handoff schemes in cognitive …

Design and analysis of optimal random access policies in cognitive radio networks

GU Hwang, S Roy - IEEE Transactions on communications, 2011 - ieeexplore.ieee.org
In this paper, we consider a time slotted cognitive radio network where multiple secondary
users (SUs) contend to access wireless channels. We propose and analyze a channel …

Parallel link rendezvous in ad hoc cognitive radio networks

M Altamimi, K Naik, X Shen - 2010 IEEE Global …, 2010 - ieeexplore.ieee.org
A Cognitive Radio (CR) network seeks to access and utilize the unused license spectrum
portions. These portions have dynamic behavior that introduces challenge for the CR user to …

Stochastic spectrum handoff protocols for partially observable cognitive radio networks

JH Chu, RT Ma, KT Feng - Wireless networks, 2014 - Springer
Recent studies have been conducted to indicate the ineffective usage of licensed bands due
to static spectrum allocation. In order to improve spectrum utilization, cognitive radio (CR) is …

[PDF][PDF] Performance gains for spectrum utilization in cognitive radio networks with spectrum handoff

CW Wang, LC Wang, F Adachi - International Symposium on …, 2009 - adachifumiyuki.jp
Cognitive radio (CR) can improve spectrum utilization by allowing the secondary users to
temporarily access the primary users' unutilized licensed spectrum. In order to guarantee …