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ICC
2007
IEEE
149views Communications» more  ICC 2007»
14 years 4 months ago
Cluster-Based Cooperative Spectrum Sensing in Cognitive Radio Systems
— In cognitive radio systems, secondary users can be coordinated to perform cooperative spectrum sensing so as to detect the primary user more accurately. However, when the sensi...
Chunhua Sun, Wei Zhang, Khaled Ben Letaief
INFOCOM
2007
IEEE
14 years 4 months ago
To Repair or Not To Repair: Helping Ad-hoc Routing Protocols to Distinguish Mobility from Congestion
Abstract—In this paper we consider the problem of distinguishing whether frame loss at the MAC layer has occurred due to mobility or congestion. Most ad hoc routing protocols mak...
Manoj Pandey, Roger Pack, Lei Wang, Qiuyi Duan, Da...
AICT
2006
IEEE
108views Communications» more  AICT 2006»
14 years 4 months ago
Enhancing IEEE 802.11e standard in congested environments
IEEE 802.11e is a wireless local area networking standard introducing quality of service. It defines new MAC protocols, mainly HCF and EDCF. EDCF is a contentionbased channel acce...
Mounir Frikha, Fatma Ben Said, Lilia Maalej, Faiza...
INFOCOM
2005
IEEE
14 years 4 months ago
Fairness and optimal stochastic control for heterogeneous networks
— We consider optimal control for general networks with both wireless and wireline components and time varying channels. A dynamic strategy is developed to support all traffic w...
Michael J. Neely, Eytan Modiano, Chih-Ping Li
IPSN
2005
Springer
14 years 3 months ago
Coverage and hole-detection in sensor networks via homology
We consider coverage problems in sensor networks of stationary nodes with minimal geometric data. In particular, there are no coordinates and no localization of nodes. We introduc...
Robert Ghrist, Abubakr Muhammad