Sciweavers

53 search results - page 10 / 11
» Adaptive Channel Allocation Spectrum Etiquette for Cognitive...
Sort
View
ICASSP
2011
IEEE
12 years 9 months ago
Stochastic resource allocation for cognitive radio networks based on imperfect state information
Efficient design of cognitive radio networks calls for secondary users implementing adaptive resource allocation, which requires knowledge of the channel state information in ord...
Antonio G. Marqués, Georgios B. Giannakis, ...
WICON
2008
13 years 6 months ago
A graph based routing algorithm for multi-hop cognitive radio networks
Cognitive radio networks that allow dynamic spectrum access are considered spectrally more efficient than networks using fixed spectral allocation. These networks are characterize...
Yogesh Reddy Kondareddy, Prathima Agrawal
JCM
2006
92views more  JCM 2006»
13 years 5 months ago
Ultimate Dynamic Spectrum Allocation via User-Central Wireless Systems
- Current wireless systems are called vendor-central systems because, users should subscribe to a service provider (vendor) and receive the service through the spectrum assigned to...
Seyed Alireza Zekavat, Xiukui Li
TCOM
2010
133views more  TCOM 2010»
13 years 3 months ago
Transmission control in cognitive radio as a Markovian dynamic game: Structural result on randomized threshold policies
Abstract——This paper considers an uplink time division multiple access (TDMA) cognitive radio network where multiple cognitive radios (secondary users) attempt to access a spect...
J. Huang, V. Krishnamurthy
MOBICOM
2009
ACM
13 years 11 months ago
Frequency-aware rate adaptation and MAC protocols
There has been burgeoning interest in wireless technologies that can use wider frequency spectrum. Technology advances, such as 802.11n and ultra-wideband (UWB), are pushing towar...
Hariharan Rahul, Farinaz Edalat, Dina Katabi, Char...