Iterative Multi-user Detector for DS-CDMA
An Iterative Multiuser Detector for Turbo-Coded DS-CDMA Systems
... THE ITERATIVE MULTIUSER DETECTOR Figure 2 illustrates the concept of the detector that is devel- oped in this ...the user of in- terest, given the received baseband signal and the estimate of ...
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Iterative Multi-User Detection and Decoding for DS-CDMA System with Space-Timer Linear Dispersion
... for CDMA systems, which were designed for static channel over the whole LDC ...proposed iterative MUD approach in faster fading channels when the channel gains keep changing at each time slot within one LDC ...
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Non Iterative Algorithm for Multi user Detection in DS CDMA System: An Enhanced Harmony Search Algorithm
... by CDMA have not been fully ...of CDMA, from both theoretical and practical perspectives, which enables near-optimal MUD using BP with ...of iterative decoding ...the CDMA channel was ...
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Performance Analysis of Multi User Detectors for Synchronous DS CDMA Systems
... III. MULTIUSER DIRECT SEQUENCE SPREAD SPECTRUM SYSTEMS Spread spectrum can also be used as a mechanism for many users to share the same spectrum. Using spreading code properties to support multiple users within the same ...
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Multi-user Detection in DS-CDMA System Using Biogeography Based Optimization
... of CDMA system is highly a ...the user transmitting ...the user detection complexity and the interference of user transmitting signal are ...time user identification process; since the ...
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Blind Reduced Rank MMSE Detector for DS CDMA Systems
... (MMSE) detector for direct-sequence (DS) code division multiple access (CDMA) by forcing the linear MMSE detector to lie in a signal subspace of a reduced ...MMSE detector has lower ...
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Probabilistic Neural Network Implementation of the Optimum CDMA Multi-user Detector * and Prof.
... in multi-user communication system in ...suboptimal multi-user detectors proposed are the de-correlating detector developed by Lupas ...
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Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... [130] S. Haykin, Adaptive Filter Theory. Prentice-Hall International, Inc., 1996. [131] A. Klein and P. W. Baier, “Linear unbiased data estimation in mobile radio sytems applying CDMA,” IEEE Journal on Selected ...
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Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... FH/MC DS-CDMA System Above we have discussed a range of ART schemes, which were controlled by the prevalent service requirements and the channel ...FH/MC DS-CDMA based broadband mobile ...
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Interference Free Broadband Single and Multi Carrier DS CDMA
... in DS-CDMA predetermines the properties of the ...interfering multi-user and multipath components arrive within this IFW, which may be ensured with the aid of quasi-synchronous adaptive timing ...
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Adaptive Co Channel Interference Suppression Technique for Multi User MIMO MC DS/CDMA Systems
... MC DS/ CDMA systems. MC DS /CDMA can be realized as a prominent air interface for 4G Broadband communica- tions; however, capacity of such systems is limited by ...a multi-user ...
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Iterative Detection, Decoding and Channel Parameter Estimation for Orthogonally Modulated DS-CDMA Systems
... The performance of different multiuser detectors is compared in Fig. 3.1. The system is simulated for a K = 12-user system with 3-path channels, L k = L = 3 for all k. The spacing between the three paths of each ...
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Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems
... proposed detector is based on the utilization of a parallel interference cancellation (PIC) and a bank of turbo ...interference-cancellation-based iterative MUD, by taking into account the number of ...
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deterministic semi-blind detector for quasisynchronous DS/CDMA signals using antenna arrays
... receiver detector, which implicitly resolves the various multipath components and the symbol sequence estimate for each user is obtained as the best of the estimates from all the ...each user even in ...
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Blind Multi User Detection in DS-CDMA Systems using Natural Gradient based Symbol Recovery Structures
... Blind Multi User Detection (BMUD) is the process to simultaneously estimate multiple symbol sequences associated with multiple users in the downlink of a Code Division Multiple Access (CDMA) ...
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Harmony search aided iterative channel estimation, multiuser detection and channel decoding for DS-CDMA
... The automatically updated marginal APP is capable of providing a sufficiently high decision reliability, which implies that the selection of a new K-user harmony vector from the HMM is more appropriate than a ...
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CiteSeerX — Performance of Coded Multi-Carrier DS-CDMA System in Multi-Path Fading Channels
... a multi- carrier DS-CDMA (MC-DS-CDMA) scheme is employed to facilitate the synchronization process, and thus reduce ...MAI. Multi-carrier transmission technique has been ...
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A resource allocation approach to control interference in Multi Carrier DS CDMA systems
... as multi-user detection (MUD)[19],interference cancellation(IC)[20] and antenna beam forming[21], and succeeded to reduce the intra-cell interference to a large extent and inter-cell interference to a small ...
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ADAPTIVE CODE TO USER ALLOCATION FOR INTERFERENCE MANAGEMENT ON THE DOWNLINK DS-CDMA SYSTEMS
... a CDMA receiver, and equalization is not ...in CDMA systems for two reasons, the 1st reason is inter-symbol interference cancellation and the second reason is to utilize the multi-path diversity ...
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Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems
... TF/MC DS-CDMA using iterative TF-domain MUD, when communicating over Rayleigh fading channels having L = 4 T-domain resolvable ...TF/MC DS-CDMA can be found in ...and iterative ...
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