2134/5914 Peerapol Yuvapoositanon Peerapol Yuvapoositanon Jonathon Chambers Jonathon Chambers Convergence behaviours of an adaptive step-size constant modulus algorithm for DS-CDMA receivers Loughborough University 2010 untagged Mechanical Engineering not elsewhere classified 2010-02-05 16:08:07 Conference contribution https://repository.lboro.ac.uk/articles/conference_contribution/Convergence_behaviours_of_an_adaptive_step-size_constant_modulus_algorithm_for_DS-CDMA_receivers/9549272 A convergence analysis of the blind adaptive step-size constant modulus algorithm (AS-CMA) for direct-sequence code division multiple access (DS-CDMA) receivers is presented. Analytical results show similar convergence behaviours of the AS-CMA receiver and the adaptive step-size stochastic approximation (ASSA) receiver. Simulations show that the blind AS-CMA algorithm performs comparably with the non-blind AS-SA in a Markovian type of nonstationary environment. The robustness of the proposed algorithm to different settings of the initial step-size is also shown.