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ICUMT
2009
13 years 3 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
INFOCOM
2010
IEEE
13 years 4 months ago
Efficient Resource Allocation with Flexible Channel Cooperation in OFDMA Cognitive Radio Networks
Recently, a cooperative paradigm for single-channel cognitive radio networks has been advocated, where primary users can leverage secondary users to relay their traffic. However, i...
Hong Xu, Baochun Li
MOBIHOC
2007
ACM
14 years 5 months ago
Allocating dynamic time-spectrum blocks in cognitive radio networks
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Thomas ...
CORR
2010
Springer
188views Education» more  CORR 2010»
13 years 1 months ago
A Novel Algorithm for Cooperative Distributed Sequential Spectrum Sensing in Cognitive Radio
This paper considers cooperative spectrum sensing in Cognitive Radios. In our previous work we have developed DualSPRT, a distributed algorithm for cooperative spectrum sensing usi...
Jithin K. S, Vinod Sharma
INFOCOM
2012
IEEE
11 years 8 months ago
Resource allocation for heterogeneous multiuser OFDM-based cognitive radio networks with imperfect spectrum sensing
—In this paper we study the resource allocation in OFDM-based cognitive radio (CR) networks, under the consideration of many practical limitations such as imperfect spectrum sens...
Shaowei Wang, Zhi-Hua Zhou, Mengyao Ge, Chonggang ...