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CEC
2008
IEEE
16 years 21 days ago
Dynamic adaptation and multiobjective concepts in a particle swarm optimizer for constrained optimization
— In this paper, we propose a novel approach to solve constrained optimization problems based on particle swarm optimization (PSO). First, an empirical comparison of the most pop...
Jorge Isacc Flores-Mendoza, Efrén Mezura-Mo...
CISS
2008
IEEE
16 years 21 days ago
Incorporating retransmission diversity in quality-of-service guaranteed multi-user scheduling
Abstract— A cross-layer optimization combining retransmission diversity with multi-user diversity is investigated for wireless communications. To this end, a joint design of adap...
Xin Wang, Di Wang, Irena Li, Hanqi Zhuang, Salvato...
IAT
2008
IEEE
16 years 20 days ago
An Improved Discrete Particle Swarm Optimization Based on Cooperative Swarms
The discrete particle swarm optimization (DPSO) is a kind of particle swarm optimization (PSO) algorithm to find optimal solutions for discrete problems. This paper proposes an i...
Yiheng Xu, Qiangwei Wang, Jinglu Hu
ICASSP
2008
IEEE
16 years 20 days ago
Bayesian extensions to non-negative matrix factorisation for audio signal modelling
We describe the underlying probabilistic generative signal model of non-negative matrix factorisation (NMF) and propose a realistic conjugate priors on the matrices to be estimate...
Tuomas Virtanen, Ali Taylan Cemgil, Simon J. Godsi...
VTC
2008
IEEE
167views Communications» more  VTC 2008»
16 years 18 days ago
CMA and Soft Decision-Directed Scheme for Semi-Blind Beamforming of QAM Systems
— We propose a semi-blind adaptive beamforming approach for wireless systems that employ high-throughput quadrature amplitude modulation signalling schemes. A minimum number of t...
Sheng Chen, Wang Yao, Lajos Hanzo