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COLCOM
2007
IEEE
15 years 8 months ago
Towards trust-aware access management for ad-hoc collaborations
—In an ad-hoc collaborative sharing environment, attribute-based access control provides a promising approach in defining authorization over shared resources based on users’ p...
Jing Jin, Gail-Joon Ahn, Mohamed Shehab, Hongxin H...
GLOBECOM
2007
IEEE
15 years 8 months ago
Opportunistic Access with Random Subchannel Backoff (OARSB) for OFDMA Uplink
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
CDC
2008
IEEE
197views Control Systems» more  CDC 2008»
15 years 8 months ago
Dynamic spectrum access policies for cognitive radio
—We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooper...
Jayakrishnan Unnikrishnan, Venugopal V. Veeravalli
IPPS
2005
IEEE
15 years 8 months ago
Automated Analysis of Memory Access Behavior
Abstract— We developed an automated environment to measure the memory access behavior of applications on high performance clusters. Code optimization for processor caches is cruc...
Michael Gerndt, Tianchao Li
ICPP
2009
IEEE
15 years 9 months ago
Performance Limits of Fair-Access in Underwater Sensor Networks
—This paper investigates fundamental performance limits of medium access control (MAC) protocols for particular underwater multi-hop sensor networks under a fair-access criterion...
Yang Xiao, Miao Peng, John H. Gibson, Geoffrey G. ...