Sciweavers

221 search results - page 34 / 45
» Dynamic spectrum access in open spectrum wireless networks
Sort
View
76
Voted
ICMCS
2007
IEEE
149views Multimedia» more  ICMCS 2007»
15 years 4 months ago
Joint Source Coding and Data Rate Adaptation for Multi-User Wireless Video Transmission
Much attention has been paid to the problem of optimally utilizing resources such as spectrum, power and time in order to achieve the best video delivery quality in wireless commu...
Fan Zhai, Zhu Li, Aggelos K. Katsaggelos
INFOCOM
2010
IEEE
14 years 8 months ago
Delay Analysis for Cognitive Radio Networks with Random Access: A Fluid Queue View
Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
Shanshan Wang, Junshan Zhang, Lang Tong
WICON
2008
14 years 11 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
79
Voted
DSD
2008
IEEE
136views Hardware» more  DSD 2008»
15 years 4 months ago
Flexible Baseband Architectures for Future Wireless Systems
— The mobile communication systems today, have different radio spectrum, radio access technologies, and protocol stacks depending on the network being utilized. This gives rise t...
Najam-ul-Islam Muhammad, Rizwan Rasheed, Renaud Pa...
TWC
2008
201views more  TWC 2008»
14 years 9 months ago
A Novel Algorithm for Multipath Fingerprinting in Indoor WLAN Environments
Abstract--Positioning in indoor wireless environments is growing rapidly in importance and gains commercial interests in context-awareness applications. The essential challenge in ...
Shih-Hau Fang, Tsung-Nan Lin, Kun-Chou Lee