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JCM
2007
129views more  JCM 2007»
13 years 7 months ago
Evolutionary Approach for Efficient Resource Allocation in Multi-User OFDM Systems
– Orthogonal Frequency Division Multiplexing is a promising technology for high data rate transmission in wideband wireless systems for achieving high downlink capabilities in th...
Yenumula B. Reddy, Nandigam Gajendar
ICC
2009
IEEE
120views Communications» more  ICC 2009»
13 years 5 months ago
Achieving Exponential Diversity in Wireless Multihop Systems with Regenerative Relays
Abstract--We present and analyze two different power allocation strategies for considerably improving the average bit error rate (BER) performance of wireless multihop systems with...
Andreas Müller 0001, Joachim Speidel
CORR
2010
Springer
176views Education» more  CORR 2010»
13 years 5 months ago
Cooperative Distributed Sequential Spectrum Sensing
Abstract--We consider cooperative spectrum sensing for cognitive radios. We develop an energy efficient detector with low detection delay using sequential hypothesis testing. Seque...
Jithin K. S, Vinod Sharma, Raghav Gopalarathnam
ICASSP
2011
IEEE
12 years 11 months ago
Capacity maximization for distributed beamforming in one- and bi-directional relay networks
In cooperative networks, users share their resources to establish reliable connections between each other. If two users want to communicate through a cooperative network, differen...
Adrian Schad, Alex B. Gershman, Shahram Shahbazpan...
ICASSP
2008
IEEE
14 years 2 months ago
Outage capacity of a cooperative scheme with binary input and a simple relay
Cooperative communications is a rapidly evolving research area. Most of the cooperative protocols that have appeared in the literature assume slow flat fading channels and Gaussi...
George N. Karystinos, Athanasios P. Liavas