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time-varying wireless communication channels

Stochastic Modeling and Power Control  of Time Varying Wireless Communication Networks

Stochastic Modeling and Power Control of Time Varying Wireless Communication Networks

... use time-invariant (static) models for wireless ...complex time variations in the propagation environment. These time variations compel us to introduce more advanced dynamical models based on ...

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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

... As it was previously mentioned, classical Wiener filter (or full Wiener filter as we refer to it in this work) is an optimal filter for gaussian signals because it minimizes the estimation error [15], therefore it is ...

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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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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

... a wireless channel the broadcast nature of the channel exposes transmission to ...Securing communication links from eavesdropping is com- monly done by implementing enciphering and deciphering algorithms in ...

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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

... for wireless communication systems operating over time- and frequency-selective, so-called doubly selective, channels requires an accurate description of the time-varying be- ...

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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 ...of ...

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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

... different wireless communication related ...multicarrier communication the main idea is to divide the data into several streams and using them to modulate different ...multicarrier ...

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

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

... the communication link quality compared with single-antenna ...MIMO wireless communication systems and improve the performance of MIMO communications ...Many wireless standards have employed ...

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Channel Characterization and Robust Tracking for Diversity Reception over Time-Variant Off-Body Wireless Communication Channels

Channel Characterization and Robust Tracking for Diversity Reception over Time-Variant Off-Body Wireless Communication Channels

... -body communication characterize the channel, based on signal levels without performing any actual data transmission ...fixed wireless interfaces with the channel variation occurring due to moving ...

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Design of an Intelligent Wireless Communication Module Based on ARM

Design of an Intelligent Wireless Communication Module Based on ARM

... Device-driven porting and development are completed, and the hardware platform can run. Various peripherals cannot be used because of their lack of a driver support. The next step is to install drivers for each external ...

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Time varying on body wireless channel model during walking

Time varying on body wireless channel model during walking

... Simulated time series of the received signal at 2.4 GHz for the right-belt-to-left-wrist and right-belt-to-left-ankle links for one walking cycle calculated using the method described in Section 3 are shown in ...

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Modelling and characterisation of short range underwater optical wireless communication channels

Modelling and characterisation of short range underwater optical wireless communication channels

... of varying the receiver FOV from 1 to 180 on the power received and the frequency response for collimated beam was ...how varying the FOV from 1 and 7 affects the UOWC performance ...by varying ...

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A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and  Performance Analysis

A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and Performance Analysis

... frequency-flat time-vary- ing Rayleigh channels, consisting of a receiver front-end followed by a Maximum A-Posteriori (MAP) ...continuous time signal using filter banks is an essential stage in the ...

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Between the Strategic Summit and the Operational Centre: An Organizational Analysis of the “Choisir de Gagner” Sport Project for Youth with Disabilities

Between the Strategic Summit and the Operational Centre: An Organizational Analysis of the “Choisir de Gagner” Sport Project for Youth with Disabilities

... In 2014, the matrix model of management worked very well as compared to 2012-2013. There is, in fact, a consensus with regard to the proper functioning of this model. Modifications have been to this structure. ...

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Spectrally Efficient Communication over Time-Varying Frequency-Selective Mobile Channels: Variable-Size Burst Construction and Adaptive Modulation

Spectrally Efficient Communication over Time-Varying Frequency-Selective Mobile Channels: Variable-Size Burst Construction and Adaptive Modulation

... If the channel quality is further known for each burst, it is also possible to adapt the modulation mode for the data symbols on a burst-by-burst basis. When the channel is be- nign or of good quality, a higher-order ...

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Adaptive differential amplitude pulse position modulation technique (DAPPM) using fuzzy logic for optical wireless communication channels

Adaptive differential amplitude pulse position modulation technique (DAPPM) using fuzzy logic for optical wireless communication channels

... optical communication is the On-Off ...in wireless infrared ...fixed time slot and a „zero‟ is represented by the absence of the pulse during the time slot ...

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Implementation of Transmit Diversity Schemes

Implementation of Transmit Diversity Schemes

... existing wireless technology to handle the growing traffic and quality of service to be provided has revolutionized the wireless era and resulted into a new technology known as Long Term Evolution (LTE) and ...

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Chapter08_Communications & Network

Chapter08_Communications & Network

...  Discuss communication channels including physical connections (twisted-pair, coaxial, and fiber-optic cable) and wireless. communications (radio frequency, microwave, satellite, and[r] ...

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Adaptive Blind Channel Equalization for Mobile Multimedia Communication

Adaptive Blind Channel Equalization for Mobile Multimedia Communication

... over wireless networks such as 3G mobile communication systems has grown ...(NG) wireless mobile networks [1] have shown a significant trend towards personalized mobile com- munications-ubiquitous ...

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