221 search results - page 32 / 45 » Dynamic spectrum access in open spectrum wireless networks |
ICIP
2008
IEEE
15 years 11 months ago
2008
IEEE
Due to the dynamic nature of cognitive radio networks, multi-user video streaming (with various video traffic characteristics and QoS requirements) requires efficient dynamic chan...
71
Voted
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
—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...
119
click to vote
ICYCS
2008
IEEE
15 years 4 months ago
2008
IEEE
— Nowadays wireless mesh routers are facilitating with more wireless channels than ever because of the advanced wireless communication technologies such as OFDM, SDR and CR(cogni...
110
click to vote
SECON
2010
IEEE
14 years 7 months ago
2010
IEEE
Wireless communications over water may suffer from serious multipath fading due to strong specular reflections from conducting water surfaces. Cognitive radios enable dynamic spect...
MASCOTS
2004
14 years 11 months ago
2004
In this paper, a modified version of the IEEE 802.11a protocol is proposed and evaluated. We combine MultiCarrier Code Division Multiple Access (MC-CDMA), a novel, high capacity m...