low-complexity multiuser channel estimation
Iterative PDF Estimation-Based Multiuser Diversity Detection and Channel Estimation with Unknown Interference
... suboptimal low-complexity receiver schemes has been initiated by the discovery of turbo codes ...computational complexity problem of the optimal receiver ...joint multiuser detection and ...
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Low-Complexity Geometry-Based MIMO Channel Simulation
... Since October 2003, Thomas Zemen has been with the Telecom- munications Research Center, Vienna, working as a Researcher in the strategic I0 project. His research interests include orthog- onal frequency division ...
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A Low Complexity Blind Multiuser Receiver for Long Code CDMA
... symbol-channel estimation techniques in [19, 20] and can be called deterministic, since no statistical model of the sources is ...the channel and de- sired user symbols, based on all samples in a ...
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Channel estimation and analog beam selection for uplink multiuser hybrid beamforming system
... uplink multiuser hybrid beamforming system where a base station (BS) communicates with multiple users ...uplink multiuser hybrid beamforming system depends on the effective channel which is given by ...
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Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering
... blind multiuser detection (MUD) in synchronous systems over flat and fast Rayleigh fading ...addressed multiuser system. The TOSSM allows an MUD with natural blending of low-complexity ...
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Orthogonal Sequences Based Multi-CFO Estimation and Semi-Blind ICA Based Equalization for Multiuser CoMP Systems
... a low-complexity orthogonal sequences based multi-CFO estimation approach, and a pilot aided and ICA based semi-blind equalization structure for multiuser-CoMP OFDM ...with low complex- ...
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Reducing the Leakage in OFDM Systems by Using Low Complexity DFT- Based Channel Estimation
... II.PROPOSEDOFDM CHANNEL ESTIMATIONA Wavelet based OFDM system with beam former and MIMO configuration is explained in this ...a multiuser environment of k interfering user, where kth user decorated with Mk ...
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BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS
... temporal low-rate or high-rate blind MMSE detector is used at the first stage, it is referred to as two-stage ST low-rate or high-rate blind ...computational complexity of the former is comparable to ...
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Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method
... without channel codes. For channel-coded CDMA systems, the turbo principle can be introduced to improve the performance iteratively using the decision feedback from channel decoders, resulting ...
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Reduced Complexity Near Optimum Genetic Algorithm Assisted Multiuser Detection for Synchronous Multicarrier CDMA
... “Genetic algorithm assisted joint multiuser symbol detection and fading channel estimation for synchronous CDMA systems:’ IEEE Joumal on Selected Areas in Communicarions.. Hanzo, “Geneti[r] ...
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Low complexity beam domain channel estimation and power allocation in hybrid architecture massive MIMO systems
... the channel, which brings a great challenge because only limited RF chains are available at base station (BS) and user equipment ...adaptive channel esti- mation algorithm was proposed in [6] for hybrid ...
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Low Complexity Channel Estimation for OFDM and MC CDMA
... In the MC-CDMA mode a 128-chip WH spreading code was as- sumed and a single user transmitted all the spreading codes in parallel in order to maintain a data-rate similar to that of the OFDM system. All transmitted codes ...
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Resource allocation in coordinated multipoint long term evolution–advanced networks
... Among the key challenges encountered by wireless communication systems designers are fading and interference. Fading limits the coverage and reliability of any point-to-point wireless connection, meanwhile interference ...
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Low complexity a posteriori probability approximation in EM based channel estimation for trellis coded systems
... Several low-complexity approximations of the BCJR algorithm have been proposed in the literature, mainly in the context of iterative soft decoding of concatenated codes, referred to as turbo ...reduces ...
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Multiuser Channel Estimation from Higher Order Statistical Matrix Pencil
... blind estimation of MIMO channels driven by white stationary in- put ...MIMO channel estimation. The channel identifiability condition of the new method is weaker than some existing ...
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Study and Development of Novel Techniques for PHY-Layer Optimization of Smart Terminals in the Context of Next-Generation Mobile Communications
... The ow of multimedia trac through wireless networks is constantly increasing, both in local and in metropolitan areas. Multimedia trac is characterized by heterogeneous data rates typical of the dierent streamed media. ...
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Effects of Channel Estimation on Multiuser Virtual MIMO OFDMA Relay Based Networks
... of channel estimation errors and the use of LDPC codes of the proposed VMRT with the case where no CSI-T is needed, a 2-hop space- time block code is used, denoted as 2h-STBC throughout the paper; this ...
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A Review of complexity method for wireless Channel Estimation using a BEM
... Figure shows a block diagram of a baseband OFDM modem which is based on PHY (physical layer) of IEEE standard 802.11a [7].Before describing the mathematical model, we define the symbols and notations used in this paper. ...
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Performance and Complexity Comparison of Channel Estimation Algorithms for OFDM System
... For high data rate communication systems like next generation (4G) wireless networks, operated in frequency selective fading environments, a multi carrier modulation technique is used, commonly known as Orthogonal ...
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Turbo multiuser detection with integrated channel estimation for differentially coded CDMA systems.
... the channel while they are independent of th e transm itted frame length, th e constraint length of the code, and the type of modulation employed in the transm itter ...SNR estimation method for the first ...
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