Advances in Multiuser Detection
نویسندگان
چکیده
منابع مشابه
Covariance Analysis of a vector tracking GPS receiver based on MMSE multiuser Detection
In high dynamic conditions, using vector tracking loops instead of scalar tracking loops in GPS receivers is proved as an efficient method to compensate the performance. The Minimum Mean Squared Error detector as a multiuser detector is applied in the vector tracking loop for more reliability and efficiency. The Kalman filter does the two tasks of tracking and extracting the navigation data aft...
متن کاملNonlinear Multiuser Receiver for Optimized Chaos-Based DS-CDMA Systems
Chaos based communications have drawn increasing attention over the past years. Chaotic signals are derived from non-linear dynamic systems. They are aperiodic, broadband and deterministic signals that appear random in the time domain. Because of these properties, chaotic signals have been proposed to generate spreading sequences for wide-band secure communication recently. Like conventional DS...
متن کاملImproved Multiuser Detection in Code-division Multiple Access Communications
In Code Division Multiple Access (CDMA) communications, Multiuser Detection (MUD), that reduces the multi-access interference (MAI) and that solves the near-far problem, has been widely studied for over 15 years. Since optimal multiuser detection is generally NP hard, many sub-optimal algorithms that provide reliable performance and ensure polynomial complexity have been proposed. However, ther...
متن کاملIterative space-time processing for multiuser detection in multipath CDMA channels
Huaiyu Dai*, Student Member, IEEE, and H. Vincent Poor, Fellow, IEEE Department of Electrical Engineering, Princeton University Princeton, NJ 08540 Tel: (609) 258-4634 Fax: (609) 258-1560 Email: [email protected], [email protected] Abstract: Space-time processing and multiuser detection are two promising techniques for combating multipath distortion and multiple-access interference in C...
متن کاملMultiuser Detection of Cdma by Iterated Soft{cancellation (turbo Multiuser Detection) Camera-ready Copy for Multiuser Detection of Cdma by Iterated Soft{cancellation (turbo Multiuser Detection)
Multiuser detection by iterated soft{decision interference cancellation is known to achieve almost single user performance in low and moderate interference scenarios. In this paper, it is shown how this detection scheme can be further improved by adaptive calculation of the soft{decision rule. This enables a signiicantly higher number of active users signaling within the same bandwidth to be de...
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