221 search results - page 35 / 45 » Dynamic spectrum access in open spectrum wireless networks |
145
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WONS
2012
IEEE
13 years 5 months ago
2012
IEEE
—The IEEE 802.15.4 standard specifies an M-ary spread spectrum system with public and fixed spreading sequences. We propose instead to use secret and dynamic, random spreading ...
84
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ICDCN
2010
Springer
15 years 4 months ago
2010
Springer
Conventional wireless networks employ a contention based channel access mechanism, which not only imposes high latency but also reduces goodput of the network. Lack of interference...
JCM
2006
14 years 9 months ago
2006
The use of middleware has extended from simply facilitating applications' communication to a broad set of services supporting a huge spectrum of networked and distributed comp...
80
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INFOCOM
2006
IEEE
15 years 3 months ago
2006
IEEE
Abstract— The inherent spread spectrum nature in ultrawideband (UWB) communications can support simultaneous transmissions. Two nearby transmissions do not collide, but rather ge...
SIGCOMM
2006
ACM
15 years 3 months ago
2006
ACM
The combination of unlicensed spectrum, cheap wireless interfaces and the inherent convenience of untethered computing have made 802.11-based networks ubiquitous in the enterprise...