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176
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ISCC
2009
IEEE
16 years 1 months ago
2009
IEEE
A directly public verifiable signcryption scheme is introduced in this paper that provides the security attributes of message confidentiality, authentication, integrity, non-repud...
144
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ICC
2008
IEEE
16 years 25 days ago
2008
IEEE
Abstract—We propose a closed–loop scheme that combines opportunistic beamforming (OBF) and closed–loop (CL) transmit–diversity (TD) techniques. This quantized OBF scheme is...
ICC
2007
IEEE
16 years 22 days ago
2007
IEEE
— In this paper we present our implementation of a layered ZigBee network and the performance test results using non-beaconing networks. Adding the implemented network layer to a...
143
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ICC
2007
IEEE
16 years 22 days ago
2007
IEEE
— In this paper we consider UWB (ultra wide band) based positioning. We derive the CRBs (Cramer Rao bound) for AOA (angle of arrival) and for hybrid method using both AOA and TOA...
139
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ICC
2007
IEEE
16 years 22 days ago
2007
IEEE
— Many network operators offer some type of tiered service, in which users may select only from a small set of service levels (tiers). In this work, we study the problem of desig...