Detection Techniques for Multi-User SDMA-OFDM
Performance of SDMA Multi User Detection Techniques for Walsh Hadamard Spread OFDM Schemes
... SIC detection order. Hence not all the symbols of a specific user contained in a WHT block are available at the same time for ...two user SDMA ...complex multi-user receiver, ...
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Genetically Enhanced TTCM Assisted MMSE Multi user Detection for SDMA OFDM
... MMSE-GA multi-user de- tected SDMA-OFDM ...various techniques and parame- ters used in the GA MUD are summarized in Table ...one OFDM symbol, but they are faded at the beginning ...
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FPGA Implementation of Multi-User Detection Genetic Algorithm Tool for SDMA-OFDM Systems
... estimation techniques at the BS and employed in MUD procedures. 3 Detection Techniques for SDMA-OFDM Systems SDMA-OFDM system implementation success depends on keeping the ...
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Low-complexity soft-output quantum-assisted multi-user detection for direct-sequence spreading and slow subcarrier-hopping aided SDMA-OFDM systems
... is used. 1251 FIGURE 14. BER performance with respect to E b /N 0 in the rank-deficient DSS/USSCH SDMA-OFDM system of Table 5, when the USSCH and DSS-based USSCH subcarrier allocation algorithms are used. ...
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R}eview and Analysis of Multiuser Detection Techniques for Smart Antenna of SDMA-{OFDM
... networks. SDMA is having the potential of increasing the system performance as well as spectral ...for multi-user system communication system for multi user detection using the ...
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Channel tracking in SDMA-based multi-user MIMO-OFDM communications systems
... for SDMA- based multi-user MIMO-OFDM systems to characterise the time-variations and frequency selectivity in the propagation environments in order for the adaptive equalization ...
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Neural Network based Minimization of BER in Multi-User Detection in SDMA
... amplitude detection, character recognition and many other ...in Multi-User ...consider SDMA scheme with 3 transmitters and 4 receiver antennas and BPSK modulation scheme is used ...
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On Development of Some Soft Computing Based Multiuser Detection Techniques for SDMA–OFDM Wireless Communication System
... the SDMA–OFDM system in overload scenario can be more explicitly investigated through constellation diagrams as shown in Figure ...the User–1 from the noiseless received symbols using various MUDs ...
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Iterative Joint Channel Estimation and Symbol Detection for Multi User MIMO OFDM
... GA-JCEMUD/SDMA- OFDM system was capable of achieving a performance close to the perfect-CSI aided optimum ML MUD at F D = ...of detection freedom experienced in overloaded ...
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Performance of Some Metaheuristic Algorithms for Multiuser Detection in TTCM Assisted Rank Deficient SDMA OFDM System
... solve multi user detection problem in SDMA-OFDM system using ABC and PSO ...symbol detection mechanisms approach near-optimal performance with significant reduction in ...
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Iterative Joint Channel Estimation and Multi User Detection for Multiple Antenna Aided OFDM Systems
... and multi-user detection scheme generating soft outputs constitutes an effective solu- tion to the channel estimation problem in multi-user MIMO SDMA-OFDM ...the ...
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Multi-user detection for multi-carrier communication systems
... Introduction Multi-user detection (MUD) techniques were proposed by Verdu [22] in order to effectively combat multi-user interference (MUI) in direct sequence code division ...
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Reduced Complexity Maximum Likelihood Detection in Downlink SDMA Systems
... up-link SDMA systems is rich, but at the time of writing there is a paucity of information on the employment of SDMA techniques in the ...(DL) multi-user communication system invoking a ...
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Multi-user detection for the ARGOS satellite system
... In this paper, we limit ourselves to the study of two beacon signals. Our goal is to determine the conditions in which two signals are successfully decoded when two signals are received at the satellite. This is a first ...
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Performance of GA and PSO aided SDMA/OFDM Over Loaded System in a Near Realistic Fading Environment
... rank-deficient multi-user MIMO- OFDM systems, the channel’s output phasor constellation often becomes linearly non ...result, multi- user detection becomes a challenging ...
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Comparative Analysis of GA-MMSE and PSO-MMSE Based MUD Technique Aided SDMA/OFDM System
... the SDMA-OFDM based architecture of ...by OFDM (Orthogonal Frequency division ...using OFDM but detection techniques especially in over-loaded scenario poses many challenging ...
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Iterative multi user detection for OFDM using biased mutation assisted genetic algorithms
... Furthermore The left-hand side of Figure 9 shows the Eb/NO gain achieved the system employing the BQM-aided two-iteration IGA MUD was ca- ______________________ ~~~~~~ploying by the BQM-[r] ...
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PAPR Reduction in Multi-User MIMO-OFDM
... for multi input and multi output ...of multi-carrier transmission, this proposed scheme reorders the null-subcarriers and data ...reduction techniques since the conventional methods do not ...
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HIPERLAN like Turbo Coded Multi user Detection Assisted OFDM Based Interactive Video Telephony
... ure 3, potentially supporting four simultaneous users. There are two typical types of pilot arrangements, as seen at the top and bottom of Figure 3, respectively. These can be differentiated on the basis, whether the ...
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Advanced Channel Estimation and Detection Techniques for MIMO and OFDM Systems
... dering is incorporated in other schemes in Subsection 5.6 in the later iterations except the 1st iteration. This is because serial ICI cancellation requires previous symbol estimates to improve the reliability of the ...
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