Sciweavers

172 search results - page 3 / 35
» globecom 2010
Sort
View
GLOBECOM
2010
IEEE
13 years 2 months ago
A Comparison of Modulations for Energy Optimization in Wireless Sensor Network Links
We study the energy consumption of individual links in wireless sensor networks (WSN). Three widely used digital modulation schemes, i.e. MQAM, MPSK, and MFSK, are analyzed and com...
Felipe M. Costa, Hideki Ochiai
GLOBECOM
2010
IEEE
13 years 2 months ago
Joint Rate Control and Spectrum Allocation under Packet Collision Constraint in Cognitive Radio Networks
Abstract-- We study joint rate control and resource allocation with QoS provisioning that maximizes the total utility of secondary users in cognitive radio networks. We formulate a...
Nguyen H. Tran, Choong Seon Hong
GLOBECOM
2010
IEEE
13 years 2 months ago
Transmission Strategies for Gaussian Relay Networks Obtained from Deterministic Models
A constant gap between the deterministic model of a class of a wireless relay network and its Gaussian model counterpart is derived. The method is constructive in the sense that a ...
Nicolas Schrammar, Mikael Skoglund
GLOBECOM
2010
IEEE
13 years 2 months ago
Energy-Efficient Multi-Carrier Link Adaptation with Sum Rate-Dependent Circuit Power
Abstract--Energy-efficient link adaptation is studied for transmission on a frequency-selective parallel AWGN channel. The total power dissipation model includes a circuit power th...
Christian Isheden, Gerhard Fettweis
GLOBECOM
2010
IEEE
13 years 2 months ago
Secure Cooperation Incentive Scheme with Limited Use of Public Key Cryptography for Multi-Hop Wireless Network
Abstract-Secure cooperation incentive schemes usually use public key cryptography, which incur too heavy overhead to be used efficiently in limited-resource nodes. In this paper, w...
Mohamed Elsalih Mahmoud, Xuemin Shen