Local Search Detection in Multiple Access DS/CDMA Networks

Alvaro Ricieri Castro e Souza, Alex Miyamoto Mussi, Rafael de Oliveira Ribeiro, Taufik Abrao
2012 IEEE Latin America Transactions  
This paper demonstrates the effectiveness of local search algorithm (LS) for multiuser detection (MuD) in multiple access DS/CDMA communication networks, using digital signal processing platform. Even been the simplest search algorithm found in literature, the 1-LS algorithm applied to MuD problem is capable to achieve good performance-complexity tradeoff, indicating a certain efficiency in approaching the optimal solution (NP-complete problem) under severe operation system and channel
more » ... nd channel conditions, i.e., flat Rayleigh channel, medium and high system loading and a wide range for signal-noise ratio. Keywords- DS/CDMA, multiuser detection, search algorithm, optimization, computational complexity.
doi:10.1109/tla.2012.6187590 fatcat:ewp2gvdkfzfwlc5uwkayx6odfq