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ICUMT
2009
13 years 6 months ago
Cooperative robust sequential detection algorithms for Spectrum Sensing in Cognitive Radio
Abstract-- We consider the problem of Spectrum Sensing in Cognitive Radio Networks. In our previous work we have developed DualCUSUM, a distributed algorithm for change detection a...
ArunKumar Jayaprakasam, Vinod Sharma
GLOBECOM
2010
IEEE
13 years 6 months ago
Maximize Secondary User Throughput via Optimal Sensing in Multi-Channel Cognitive Radio Networks
In a cognitive radio network, the full-spectrum is usually divided into multiple channels. However, due to the hardware and energy constraints, a cognitive user (also called second...
Shimin Gong, Ping Wang, Wei Liu, Wei Yuan
JSAC
2011
171views more  JSAC 2011»
12 years 11 months ago
QoS Provisioning for Heterogeneous Services in Cooperative Cognitive Radio Networks
—In this paper, we propose a spectrum allocation framework that jointly considers the Quality-of-Service (QoS) provisioning for heterogeneous secondary Real-Time (RT) and Non-Rea...
Ammar Alshamrani, Xuemin (Sherman) Shen, Liang-Lia...
WCNC
2010
IEEE
13 years 7 months ago
Sensing and Communication Tradeoff for Cognitive Access of Continues-Time Markov Channels
—Dynamic spectrum access (DSA) aims to improve spectrum efficiency via spectrum sensing and optimal spectrum access. An essential component in DSA is the joint design of sensing...
Xin Li, Qianchuan Zhao, Xiaohong Guan, Lang Tong
VTC
2008
IEEE
185views Communications» more  VTC 2008»
14 years 3 months ago
Opportunistic Spectrum Access for Energy-Constrained Cognitive Radios
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
Anh Tuan Hoang, Ying-Chang Liang, David Tung Chong...