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CDMA multi-user detection

Single  and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking

Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking

... chronous CDMA system designed for a frequency-selective Rayleigh fading ...multiuser detection in flat fading channels by Zvonar et al ...data detection was investigated by and ...each user in ...

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Single  and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking

Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking

... [300] M. J. Juntti, T. Schl¨osser, and J. O. Lilleberg, “Genetic algorithms for multiuser detection in synchronous CDMA,” in IEEE International Symposium on Information Theory – ISIT’97, (Ulm, Germany), p. ...

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Adaptive Modulation and Adaptive Antenna Array Assisted Network Performance of Multi User Detection Aided UTRA like FDD/CDMA Systems

Adaptive Modulation and Adaptive Antenna Array Assisted Network Performance of Multi User Detection Aided UTRA like FDD/CDMA Systems

... maximum user capacities of the networks consid- ered in this section in conjunction with log-normal shadowing having a standard deviation of 3 dB, both with and without employing beam- forming using two and four ...

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Performance Analysis of Multi User Detectors for Synchronous DS CDMA Systems

Performance Analysis of Multi User Detectors for Synchronous DS CDMA Systems

... effect. Multi-User Detection plans are utilized to recognize the users’ information in nearness of MAI and near- far ...single user matched filter in DS-CDMA ...

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Non Iterative Algorithm for Multi user Detection in DS CDMA System: An Enhanced Harmony Search Algorithm

Non Iterative Algorithm for Multi user Detection in DS CDMA System: An Enhanced Harmony Search Algorithm

... and Multi-Carrier Code Division Multiple Access (MC-CDMA). CDMA is an efficient method of bandwidth allocation and is used in many to one wireless communication channels [2] ...multiple CDMA ...

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Compressive Sensing Multi User Detection for MC CDMA System in Machine to Machine Communication

Compressive Sensing Multi User Detection for MC CDMA System in Machine to Machine Communication

... Our detection scheme is based on OMP algorithm[10]which is commonly used well and suited for our scenario. However, most greedy algorithms including OMP algorithm require prior knowledge such as sparsity or noise ...

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Iterative Joint Channel Estimation and Multi User Detection for Multiple Antenna Aided OFDM Systems

Iterative Joint Channel Estimation and Multi User Detection for Multiple Antenna Aided OFDM Systems

... symbol detection at the receiver were also proposed for Code Division Multiple Access (CDMA) [12], [21], SISO OFDM [25]–[27] and MIMO OFDM [22], [28] ...type multi-user MIMO OFDM systems, all ...

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Incremental refinement of a multi-user-detection algorithm (II)

Incremental refinement of a multi-user-detection algorithm (II)

... a CDMA system. One particularly elegant approach is the employment of multi-user detection at the re- ceiver (Verdu, ...one user are estimated by using knowledge of all other users that ...

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Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

... for user separation can separate different users without spreading within the CDMA ...for user separation, incorporating principles developed in ...from CDMA, in particular, diver- sity ...

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Antenna arrays in multi user detection of spread spectrum signals

Antenna arrays in multi user detection of spread spectrum signals

... each user is assigned a unique scrambling ...of multi-user detection algorithms have been suggested by various ...new multi-user detection procedure using an antenna array ...

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Performance of SDMA Multi User Detection Techniques for Walsh Hadamard Spread OFDM Schemes

Performance of SDMA Multi User Detection Techniques for Walsh Hadamard Spread OFDM Schemes

... effective multi-user OFDM detection tech- niques have recently been addressed in a variety of pub- ...specifically, detection techniques typically employed in CDMA systems, such as ...

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BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

... particular user and then repeated for each data symbol of that user, the MAI is clearly cyclostationary provided that the channels for the users vary relatively ...desired user, which allows the ...

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Multi User Detection by MMSE Adaptive Algorithm for Multi Beam MIMO MC CDMA using Sequences of References

Multi User Detection by MMSE Adaptive Algorithm for Multi Beam MIMO MC CDMA using Sequences of References

... the multi-antenna technology is improving the capacity of cellular ...multiuser detection for MC-CDMA ...used Multi-Beamformer with sequences of references at receiver and space time block ...

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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems

Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems

... Single-user detection (SUD) using linear equal- izers such as maximum ratio or equal gain combining, min- imum mean square error or zero forcing; and multi-user de- tectors (MUD) using block ...

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UWB System Based on the Modified Gegenbauer Function in MISO Channel

UWB System Based on the Modified Gegenbauer Function in MISO Channel

... new multi-user Rake receiver, based on the interference mutualization with a matrix repre- sentation for Multiple Input Single Output MISO ...the multi users transmission ...single detection ...

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Block Diagonalization with Multiuser Beamforming for Coordinated Multi-Point Transmission

Block Diagonalization with Multiuser Beamforming for Coordinated Multi-Point Transmission

... is a professor and former chair of the Department of Electronics Engineering in Chonbuk National University, Korea. He received the Ph.D. degree from Chonnam National University, Korea in 1984, and from the University of ...

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Analyzing the Co-Existence of LTE-A Signals in Heterogeneous Network Model

Analyzing the Co-Existence of LTE-A Signals in Heterogeneous Network Model

... Figure (e) Shows the Hexagonal multi cell grid model plot of BS and MS.There are 19 base station and many mobile station surrounding each of the base station. There are 512 subcarriers for each of mobile stations ...

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Research on Classification and Recognition for Multiuser Signal Detection

Research on Classification and Recognition for Multiuser Signal Detection

... The MMSE multi-user detection algorithm was analyzed and improved. A new classification algorithm based on fuzzy function is showed in this paper. In order to present the performance of the ...

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Optimum Detection of CDMA

Optimum Detection of CDMA

... Here we describe methods of detection of Code Division Multiple Access signal against Gaussian noise. We transmit differentially encoded signal and in the receiver, we do signal processing to reduce noise injected ...

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BER performance of MC DS CDMA systems in the presence of timing jitter : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Telecommunication Engineering at Massey University, Palmersto

BER performance of MC DS CDMA systems in the presence of timing jitter : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Telecommunication Engineering at Massey University, Palmerston North, New Zealand

... of CDMA systems based on the combination of CDMA schemes and OFDM technique, which are referred to as multi-carrier CDMA systems, has received a lot of attention in the field of wireless ...

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