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time varying wireless channels

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 ...

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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

... the wireless doubly selective channel and discuss the assumptions that hold throughout the pa- ...the time-domain representation of the min- imal norm LTV-ZF equalizer is introduced, and the math- ematical ...

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Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels

Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels

... of wireless systems operating over time-varying and frequency-selective multiple-input multiple-output (MIMO) channels is ...slow time-varying ...for time-varying ...

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Antenna Controller for Low-Latency and High Reliability Robotic Communications over Time-Varying Fading Channels

Antenna Controller for Low-Latency and High Reliability Robotic Communications over Time-Varying Fading Channels

... is time-variant, we could try to com- pensate for the small-scale fading by using classical temporal diversity techniques [10], ...coherence- time is in general larger than the duration of the UDP packet ...

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

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

... Fangbiau Ueng received the Ph.D. degree in electronic engineering from the National Chiao Tung University, Hsinchu, Taiwan in 1995. From 1996 to 2001 he was with National Space Program Office (NSPO) of Taiwan as an ...

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Power line communications over time-varying frequency-selective power line channels for Smart Home Applications

Power line communications over time-varying frequency-selective power line channels for Smart Home Applications

... Recently, PLC has attracted a lot of attention since it is the only wired communi- cation technology which has a deployment cost comparable to wireless communication. It can also be maintained by the power company ...

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Stochastic Modeling and Power Control  of Time Varying Wireless Communication Networks

Stochastic Modeling and Power Control of Time Varying Wireless Communication Networks

... ment time-varying and subject to ...of time-varying wireless fading channels, their estimation and parameter identification, and optimal power control from received signal ...

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Single carrier fractional Fourier domain equalization system with zero padding for fast time varying channels

Single carrier fractional Fourier domain equalization system with zero padding for fast time varying channels

... broadband wireless channels which have very long impulse response memory ...fast-moving channels in broadband wireless commu- nications, the performance of SC-FDE will degrade a lot because ...

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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 ...in ...

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Performance Analysis of an Adaptive Incremental Cooperative Relaying  Scheme for Wireless Relay Networks

Performance Analysis of an Adaptive Incremental Cooperative Relaying Scheme for Wireless Relay Networks

... In wireless relaying networks, the traditional incremental cooperative relaying scheme (IR) could improve the system throughput enormously over fading channels by exploiting relay nodes to retransmit the ...

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Optimal Training for Time-Selective Wireless Fading Channels Using Cutoff Rate

Optimal Training for Time-Selective Wireless Fading Channels Using Cutoff Rate

... In wireless communications employing coherent detection, imperfect knowledge of the fading channel state imposes lim- its on the achievable performance as measured by, for exam- ple, the mutual information, the ...

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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 ...

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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

... The wireless communication industry has experienced a rapid growth in recent years, and digital cellular systems are currently designed to provide high data rates at high terminal ...ISI channels are ...

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Identification of LOS in Time Varying, Frequency Selective Radio Channels

Identification of LOS in Time Varying, Frequency Selective Radio Channels

... provides wireless networks with some sort of awareness, it is worth mentioning a recently emerging technology which depends heavily on “awareness”: cognitive ...

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Securing OFDM over Wireless Time Varying Channels Using Subcarrier Overloading with Joint Signal Constellations

Securing OFDM over Wireless Time Varying Channels Using Subcarrier Overloading with Joint Signal Constellations

... In JCMA, the joint constellation at the receiver’s MF output is the result of a coherent sum of the transmitter BB symbols and is unique to the location of the transmitters and receiver in space. This is achieved due to ...

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Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks

Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks

... of wireless communication ...use time-invariant (static) models for the wireless ...In time-invariant models, channel parameters are random but do not depend on time, and remain ...

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Estimation of Critical Performance and Optimization of Scalable Joint Source/Channel Coder (SJSCC) For Time Varying Channels

Estimation of Critical Performance and Optimization of Scalable Joint Source/Channel Coder (SJSCC) For Time Varying Channels

... for wireless data transmission where channel is inherently time varying and subject to Rayleigh fading ...over time varying channels with two Channel State Information’s (CSI) ...

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Robust Adaptive OFDM with Diversity for Time Varying Channels

Robust Adaptive OFDM with Diversity for Time Varying Channels

... of wireless communication systems can be significantly improved by adaptively matching the transmis- sion parameters such as rate, power level, or coding type to the channel frequency response ...

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Robust frequency-domain turbo equalization for multiple-input multiple-output (MIMO) wireless communications

Robust frequency-domain turbo equalization for multiple-input multiple-output (MIMO) wireless communications

... of time-domain and frequency-domain equalizers combined with Doppler compensation methods have been investigated for UWA communications [5] - ...[17]. Time-domain decision feedback equalization (TD-DFE) ...

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... This paper presents an improved Distance Metric (DM) technique for deriving soft reliability information over Rayleigh fading channel. We compared this proposed DM technique with the conventionally used DM technique in ...

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