Sciweavers

10 search results - page 1 / 2
» Enhancements to Cognitive Radio Based IEEE 802.22 Air-Interf...
Sort
View
ICC
2007
IEEE
145views Communications» more  ICC 2007»
13 years 11 months ago
Enhancements to Cognitive Radio Based IEEE 802.22 Air-Interface
—The IEEE 802.22 standard for wireless regional area network is the first standard for cognitive radio that tries to harness the idle or under-utilized spectrum allocated for TV...
Shamik Sengupta, Swastik Brahma, Mainak Chatterjee...
ICC
2007
IEEE
130views Communications» more  ICC 2007»
13 years 11 months ago
Power Control in Cognitive Radio Systems Based on Spectrum Sensing Side Information
— Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of...
Karama Hamdi, Wei Zhang, Khaled Ben Letaief
WICON
2008
13 years 6 months ago
Security vulnerabilities in IEEE 802.22
Cognitive Radio (CR) is seen as one of the enabling technologies for realizing a new spectrum access paradigm, viz. Opportunistic Spectrum Sharing (OSS). IEEE 802.22 is the world&...
Kaigui Bian, Jung Min Park
CISS
2008
IEEE
13 years 11 months ago
Quickest spectrum sensing in cognitive radio
Abstract— Quickest detection is applied to frequency spectrum sensing in cognitive radio systems. Distribution change in frequency domain is detected for vacating secondary radio...
Husheng Li, Chengzhi Li, Huaiyu Dai
ICC
2007
IEEE
149views Communications» more  ICC 2007»
13 years 11 months ago
Cluster-Based Cooperative Spectrum Sensing in Cognitive Radio Systems
— In cognitive radio systems, secondary users can be coordinated to perform cooperative spectrum sensing so as to detect the primary user more accurately. However, when the sensi...
Chunhua Sun, Wei Zhang, Khaled Ben Letaief