fast fading channels
Effect of power and rate adaptation on the spectral efficiency of MQAM/OFDM system under very fast fading channels
... In fading channels with very high mobilities, the time variation of the channel over an OFDM symbol period results in a loss of subchannel orthogonality which leads to inter-channel interference (ICI) due ...
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Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering
... In this section, the bit error rate (BER) performance of the proposed PFDs and SMDs are studied through experiments. In all the experiments, the transmitted signal was differential BPSK modulated. The number of users was ...
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Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering
... We propose a method for blind multiuser detection (MUD) in synchronous systems over flat and fast Rayleigh fading channels. We adopt an autoregressive-moving-average (ARMA) process to model the ...
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Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems
... variant channels, to be adaptive to the time variations in the channel ...varying channels efficiently, but their performance reduces considerably under the rapidly varying fading con- ...under ...
199
Effect of Adaptive LMS Algorithm on Fast fading Channels in OFDM System G Pavani & A V N Chandrasekhar
... A bidirectional LMS algorithm is considered and analyzed over fast frequency-selective time-varying channels. The tracking performance of the bidirectional LMS is shown to be very close to that of the ...
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Performance Analysis On Channel Estimation Of OFDM Reception In Multipath Fast Fading Channels Using PSO
... In fast fading channel the Decision Feedback Estimation Channel method has tremendous performance than several channel estimation ...in fast fading channel among many channel estimation ...
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STBC-based Time-Frequency Training OFDM over Fast Fading Channels with SNR and BER
... ABSTRACT: Orthogonal Frequency Division Multiplexing (OFDM) is recognized as high data rate transmission technique. Further, applications of space-time block coding (STBC) to the OFDM system may help in combating severe ...
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Energy Efficient Video Transmission over Fast Fading Channels
... Copyright © 2010 Dengyu Qiao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and Performance Analysis
... Rayleigh channels, consisting of a receiver front-end followed by a Maximum A-Posteriori (MAP) ...the Fast Haar Transform (FHT) is used to reduce ...slow- fading channels shows that it is ...
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Tracking Performance of an Adaptive Transmit Beamspace Beamformer in Dynamic Miso Wireless Channels
... Abstract—This paper presents the performance of an Adaptive Transmit Beamspace Beamformer (ATBBF) in a dynamic channel for Multiple Input Single Output (MISO) per user wireless system. An ATBBF consists of several ...
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Performance of Fractionally Spread Multicarrier CDMA in AWGN as Well as Slow and Fast Nakagami m Fading Channels
... wireless channels ex- hibiting both frequency-selective and time-selective ...Nakagami-m fading or frequency-selective fast (time-selective) Nakagami-m fading ...over fast fading ...
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On the cooperative and doppler diversity foramplify and forward relay network
... Cooperative channel model for high doppler spread There are several studies on modeling the fast fading channels in mobile communication environment. In (G. B. Giannakis and C. Tepedelenlioğlu, 1998) ...
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PERFORMANCE ANALYSIS OF DUAL DIVERSITY RECEIVER OVER CORRELATED a-µ FADING CHANNEL
... multipath fading in wireless communication is modeled by several distribution such as Rayleigh, Rician, Weibull, ...(α-µ) fading model [1] has been proposed to describe the mobile radio signal considering ...
9
Study of Methods to Mitigate Fading in Mobile Communication
... Fig. 5 shows the simulation results for a SISO system. It is clearly seen that the performance of SISO system in a fading channel is very poor compared to that of an AWGN channel, even for higher values of SNR. ...
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MITIGATION OF FADING EFFECTS IN MULTIPATH CHANNELS
... multipath fading, path loss and shadowing (Sanjeet and Panwar, 2012, Sudhir and Sambasiva, 2011), which degrades the quality of transmitted ...Multipath fading imposes this basic limitation on the ...
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Secret Sharing over Fast Fading MIMO Wiretap Channels
... a fast-fading MIMO wiretap ...eavesdropper channels and continuous channel ...the fast-fading MIMO wiretap channel (Section ...the fading process of the destination channel ...
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Implementation of Mu Mimo Ofdm with Dcsk Modulation
... Inspired with the aid of the above comb-kind pilot sample in OFDM, we advise a new layout for DCSK verbal exchange gadget, named as OFDM-DCSK, in an effort to growth the statistics rate and resolve the hassle of RF ...
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Orthogonal Frequency Division Multiplexing (OFDM) based Uplink Multiple Access Method Over AWGN and Fading Channels
... of channels to be used will be reduced ...multipath fading without the use of complex equalization ...propagation channels. Some of the fading channels such as Rician and Rayleigh ...
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Analysis of Cognitive Radio Capacity in Fading Channels
... Pertaining to imperfect channel estimates [13] LS and LMMSE algorithms are considered where least squares reduce the estimation error linearly and linear minimum mean square error reduces estimation error based on ...
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Algorithm for SNR Estimation In Rician Fading Channels
... selective channels by variable parameters in transmission like bandwidth, coding/data rate, power to protect and to provide improvement in efficient utilization of power and bandwidth according to the behavior of ...
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