Sciweavers

85 search results - page 17 / 17
» Model-Based Opportunistic Channel Access in Dynamic Spectrum...
Sort
View
ICC
2008
IEEE
147views Communications» more  ICC 2008»
13 years 11 months ago
QOAR: Adaptive QoS Scheme in Multi-Rate Wireless LANs
—With the availability of multiple rates in IEEE 802.11a/b/g wireless LANs, it is desirable to improve the network capacity and temporal fairness by sending multiple consecutive ...
Ming Li, Yang Xiao, Hua Zhu, Imrich Chlamtac, Bala...
JSW
2008
196views more  JSW 2008»
13 years 5 months ago
Providing Data Items with Time Constraints in Multi-Channel Broadcasting Environments
In a mobile computing system, users carrying portable devices can access database services from any location without requiring a fixed position in the networking environment. Some ...
Ding-Jung Chiang, Hwei-Jen Lin, Timothy K. Shih
CORR
2010
Springer
143views Education» more  CORR 2010»
13 years 2 months ago
The Non-Bayesian Restless Multi-Armed Bandit: a Case of Near-Logarithmic Regret
In the classic Bayesian restless multi-armed bandit (RMAB) problem, there are N arms, with rewards on all arms evolving at each time as Markov chains with known parameters. A play...
Wenhan Dai, Yi Gai, Bhaskar Krishnamachari, Qing Z...
TSP
2010
13 years 16 hour ago
Sequential and cooperative sensing for multi-channel cognitive radios
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
Seung-Jun Kim, Georgios B. Giannakis
SECON
2010
IEEE
13 years 3 months ago
Leveraging Cognitive Radios for Effective Communications over Water
Wireless communications over water may suffer from serious multipath fading due to strong specular reflections from conducting water surfaces. Cognitive radios enable dynamic spect...
Jian Tang, Li Zhang, Richard S. Wolff, Weiyi Zhang