Channel impulse response (CIR)
Channel Impulse Response Length and Noise Variance Estimation for OFDM Systems with Adaptive Guard Interval
... estimating channel impulse response (CIR) length and noise variance for orthogonal frequency-division multi- plexing (OFDM) systems with adaptive guard interval (GI) length is ...the channel ...
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A family of variable step-size affine projection adaptive filter algorithms using statistics of channel impulse response
... In this paper, we presented the novel VSS adaptive fil- ter algorithms such as VSS-SPU-NLMS, VSS-APA, VSS-SR-APA and VSS-SPU-APA based on prior knowledge of the channel impulse response statistic. ...
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Channel impulse response equalization scheme based on particle swarm optimization algorithm in mode division multiplexing
... In[12], LMS and constant modulus algorithm (CMA) have been proposed to be used with MDM system. Although the LMS algorithm has a low computational complexity, its training sequence adds an overhead and thus reduces the ...
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Multilayer Authentication for Communication Systems Based on Physical Layer Attributes
... estimated channel impulse response (CIR) at the physical- layer, these CIRs are exploited at the transport layer, adding more randomness to the generated sequence numbers used in the 3-Way TCP/IP ...
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An Improved Technique of Channel Estimation for OFDM in DVB T2
... assisted channel estimation is widely applied in wireless communication systems due to its high rate transmission capability and its robustness to multi-path fading and ...improved channel estimation method ...
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Features and Principles of OFDM: A Brief Study
... sub channel orthogonality due to time-variant multipath channels in orthogonal frequency division multiplexing (OFDM) systems leads to inter-channel interference (ICI) which increases the error floor in ...
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Improved Adaptive Bit Error Rate Performance for Fading Channel Communication
... communication channel it has been shown that by using MIMO (Multiple Input Multiple Output) system architecture it is possible to increase that capacity ...the channel impulse response ...
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Iterative Refinement Methods for Time-Domain Equalizer Design
... shortened channel impulse response. An ideal shortened channel impulse re- sponse would be zero-valued outside the window in order to yield zero ISI and infinite ...shortened ...
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CRS aided MMSE algorithm for LTE Downlink
... In a real LTE system, the number of sampling points in an OFDM symbol is 2048 when the bandwidth is 20M. Hence, the points of real time - domain impulse response is 2048. The sampling interval in frequency ...
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Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels
... finite-impulse response (FIR) linear time-varying (LTV) channels have been developed in the last decade (see [1] for a comprehensive ...of channel time ...the channel impulse ...
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Turbo coded Orthogonal Frequency Division Multiplex transmission of 8 kbps encoded speech
... Carrier Freqlwncp: Sampling Rate: Channel Impulse Response: Normalised Doppler Frequency: OFDM Number of Sub-Carriers: Cyclic Extension: Data Sub-Carriers: Pilot Sub-Carriers: Modulation[r] ...
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Improved Channel Estimation Algorithm for OFDM System over Slow Fading Rayleigh Channel
... based channel estimator designed over a slow fading Rayleigh ...based channel estimator, the channel impulse response was calculated using Least Square (LS) ...the channel ...
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Statistical Modeling of Low-Latitude Long-Distance HF Ionospheric Multi-Mode Channels
... existing channel models commonly refer to the Watterson model ...[7]. Channel impulse response measurements for longer distance (more than 3000 km) have also been reported in [4–6], all of ...
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Channel Estimation for Powerline MC CDMA System
... powerline channel suffers from multipath fading, frequency selectivity and also impulsive ...powerline channel model, noise model and various types of available channel esti- ...assisted ...
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Channel Simulation of Non imaging Optical MIMO Communication
... a channel simulation of an indoor optical wireless multiple-input-multiple-output (MIMO) system with non-imaging ...specifications, channel impulse response and channel capacity are ...
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System Step and Impulse Response
... As we introduce the study of systems, it will be good to keep the discussion well grounded in the circuit theory you have spent so much of your energy learning. An important problem in modern high speed digital and ...
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System Impulse and Step Response
... OK, now we see the trick. How can we approximate a unit step impulse? There are three important aspects of the step waveform to consider. First, the waveform must have a fast transition from off to on. Second, the ...
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Effect of Impulse Noise on Wireless Relay Channel
... relay channel model in presence of impulse noise and computing the BER performance of channel ...a channel for optimum design, to be able choose a robust ...
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System Step and Impulse Response
... In this laboratory, you will investigate basic system behavior by determining the step and impulse response of a simple RC circuit. You will also determine the time constant of the circuit and determine its ...
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System Step and Impulse Response
... In this laboratory, you will investigate basic system behavior by determining the step and impulse response of a simple RC circuit. You will also determine the time constant of the circuit and determine its ...
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