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time-varying MIMO channels

A Novel MIMO-OFDM Adaptive Receiver in Time-Varying Channels

A Novel MIMO-OFDM Adaptive Receiver in Time-Varying Channels

... for MIMO-OFDM ...for MIMO-OFDM ...the time-varying ...the MIMO-OFDM systems ...of MIMO-OFDM systems over time-varying channels, this paper joint considers ...

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Minimization Of Inter Carrier Interference Using Iterative Technique for Mimo-Ofdm

Minimization Of Inter Carrier Interference Using Iterative Technique for Mimo-Ofdm

... on time varying multipath channels was observed and a method was proposed to mitigate the effect of ICI with least computational ...over MIMO-OFDM systems with BPSK and QPSK ...

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Time-Varying FIR Equalization for MIMO Transmission over Doubly Selective Channels

Time-Varying FIR Equalization for MIMO Transmission over Doubly Selective Channels

... DFE time-varying FIR equalizers for MIMO transmission over doubly selective ...the MIMO transmission. Considering other MIMO transmission tech- niques, for example, space-time ...

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Code-Aided Estimation and Detection on Time-Varying Correlated Mimo Channels: A Factor Graph Approach

Code-Aided Estimation and Detection on Time-Varying Correlated Mimo Channels: A Factor Graph Approach

... over time-varying fading channels has been studied intensively during the last decade ...the time varying nature of the channel, by spreading channel errors, caused by deep fades, over ...

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Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels

Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels

... over time-varying and frequency-selective multiple-input multiple-output (MIMO) channels is ...slow time-varying ...for time-varying and wideband ...

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Stable Transmission in the Time-Varying MIMO Broadcast Channel

Stable Transmission in the Time-Varying MIMO Broadcast Channel

... the MIMO broadcast channel with erroneous CSIT and CSIR are found in [12] using the duality between the broadcast and multiple-access channels (MAC) ...when time-sharing outperforms DPC in the ...

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Linear and Nonlinear Time Domain Block Equalizers  on MIMO Frequency Selective Channels

Linear and Nonlinear Time Domain Block Equalizers on MIMO Frequency Selective Channels

... the time domain block linear and nonlinear equalizers for the signal separation and equalization of single carrier transmission on quasi- static frequency selective MIMO, SIMO, and SISO chan- ...proposed ...

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Robust Adaptive OFDM with Diversity for Time Varying Channels

Robust Adaptive OFDM with Diversity for Time Varying Channels

... general MIMO transmission system. An adaptive MIMO-OFDM system with imperfect CSI is de- signed with the stochastic approach in ...for MIMO channels with imperfect CSI is de- signed in ...

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Reduced Order Estimation of Time Varying Wireless Channels in Real Life Scattering Environment

Reduced Order Estimation of Time Varying Wireless Channels in Real Life Scattering Environment

... Wireless channel simulators are widely used for reproducing channel behavior during the signal transmission over propagation medium. They gained popularity because they allow us to evaluate systems in lab conditions, ...

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Space Time Water Filling for Composite MIMO Fading Channels

Space Time Water Filling for Composite MIMO Fading Channels

... narrowband channels, when channel state in- formation is available at the transmitter and instantaneous adaptation is possible, the capacity achieving distribution is found by using the well-known water-filling ...

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Time variation characteristics of MIMO-OFDM broadband channels in populated indoor environments

Time variation characteristics of MIMO-OFDM broadband channels in populated indoor environments

... The MIMO approach can yield significant gains for both link and network capacities, with no additional energy or bandwidth consumption when compared to conventional single-array diversity methods [1], ...When ...

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Performance Analysis of Space Time Block Codes in Flat Fading MIMO Channels with Offsets

Performance Analysis of Space Time Block Codes in Flat Fading MIMO Channels with Offsets

... Maximum likelihood (ML) estimation of transmitted data requires the perfect knowledge of the carrier offset and the channel. The offset can be estimated through the use of pilot symbols [5], or using blind method [6]. ...

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LTE modeling for low complexity Time Varying channels in MIMO-OFDM

LTE modeling for low complexity Time Varying channels in MIMO-OFDM

... data rate. Spectrum efficiency and flexible utilization of spectrum is highly required today for different wireless communication related applications. In multicarrier communication the main idea is to divide the data ...

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Identifying time-varying channels with aid of pilots for MIMO-OFDM

Identifying time-varying channels with aid of pilots for MIMO-OFDM

... The MIMO feature brings not only design challenges but also performance benefits. Due to the ICI, the contri- bution of the pilots is always mixed with the contribution of the unknown data in the received samples. ...

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Pilot Placement for Time Varying MIMO OFDM Channels with Virtual Subcarriers

Pilot Placement for Time Varying MIMO OFDM Channels with Virtual Subcarriers

... So as to discard the interference between neighboring channels in practical systems, a guard band is considered at each transmit data symbol. The guard band includes virtual subcarriers that are not used for ...

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Importance sampling methodologies for simulation of communication systems with time-varying channels and adaptive equalizers

Importance sampling methodologies for simulation of communication systems with time-varying channels and adaptive equalizers

... In addition to the TS technique, we also present a statistically biased, but simpler tech- nique for using IS with adaptive equalizers which is based on the independence assumption betwe[r] ...

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Model-based approach to reliable information transfer over time-varying communication channels

Model-based approach to reliable information transfer over time-varying communication channels

... model time-varying wireless communications channels [39-41], including Rayleigh fading channels [42, 43], Ricean fading channels and Nakagami fading channels ...wireless ...

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Title: Improved Space Time Block Coding Diversity Technique for Rayleigh Fading Channel in Wireless Systems

Title: Improved Space Time Block Coding Diversity Technique for Rayleigh Fading Channel in Wireless Systems

... Alamouti system is one of the first space time coding schemes developed for the MIMO systems which take advantage out of the added diversity of the space direction. Therefore we do not need extra bandwidth ...

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Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels

Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels

... over time- and frequency-selective, so-called doubly selective, channels requires an accurate description of the time-varying be- haviour of the transmission ...linear ...

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Comparison of Analytic Inversion Techniques for Equalisation of Highly Frequency Selective MIMO Systems

Comparison of analytic inversion techniques for equalisation of highly frequency-selective MIMO systems

... mildly time-dispersive channels the frequency-domain inversion gave the best performance com- promise across the more realistic lower SNR range at a com- putational cost significantly lower than that of the ...

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