additive white noise channel
A Blind Hammerstein Diversity Combining Technique for Flat Fading Channels
... wireless channel is the random variation of its transfer function, known as fading ...of additive white Gaussian noise, maximal ratio combining (MRC) is a theoretically optimal combiner over ...
12
The Performance of Fast Frequency Hopping System in Additive White Gaussian Noise (AWGN)
... is design by the engineers, so transmitter must be coordinated with a receiver.In communication synchronization is done with the known center frequency transmited by the transmitter signal,so that we can receive our ...
9
Cyclic Channel Coding Algorithm For Original And Received Voice Signal At 8 Khz Using Ber Performance Through Additive White Gaussian Noise Channel
... communication, channel coding is designed to improve communication by enabling the transmitted signals to better with-stand the effects of various channel impairments such as noise, interference, and ...
10
A Block Transmission Method for Converting a Non-Gaussian Channel into Parallel Gaussian Noise Channels
... the channel, subblock noise symbols due to an additive noise on the propagation channel become uncorrelated Gaussian random variables with same variances for a wide range of ...
5
OFDM systems design using harmonic wavelets
... fading channel with additive white Gaussian noise (AWGN), the bit error ratio of both FFT-OFDM and HW-OFDM perfectly matched, showing that the proposed HW-OFDM is better in terms of ...
7
OFDM PAPR REDUCTION USING LINEAR BLOCK CODES WITH ERROR CORRECTION IN ADDITIVE WHITE GAUSSIAN NOISE CHANNEL
... The basic principle of OFDM is to split input data stream into a number of lower rate streams that are transferred simultaneously over a number of subcarriers, the transmission rate is slower in parallel subcarriers, a ...
5
Study of Various Filters for Removal Noise from RSI Using Matlab Simulation
... developed additive white Gaussian Noise(AWGS), Salt and Pepper Noise(SPN), Shot Noise (Poisson noise), Speckle ...of noise removal filters is carried ...to Noise ...
8
Bit Error Rate and Signal to Noise Ratio Performance Evaluation of OFDM System with QPSK and QAM M-array Modulation Scheme in Rayleigh, Rician and AWGN Channel Using MATLAB/Simulink
... mobile channel is greater than the bandwidth of the transmitted channel either all frequency components of a received radio signal vary in the same proportion simultaneously (Ojasvi et al 2014; Usha & ...
9
ZigBee Signal Phase Tracking Using a Discrete Kalman Filter Estimator under AWGN Channel
... of Additive White Gaussian Noise (AWGN) channel, by minimizing the phase deviation ...to Noise Ratio ...AWGN channel which can be extended to Inter- net of Things (IoT) ...
8
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & MANAGEMENT INVESTIGATIONS ON THE PERFORMANCE ENHANCEMENT OF SELF ENCODED SPREAD SPECTRUM IN WIRELESS COMMUNICATION Kavitha Rani*, Dr.S Suresh Babu
... Spread spectrum systems are employed for the secure transmission of digital information which is achieved through spreading the signal in frequency domain. Pseudo-Noise (PN) sequences are conventionally used for ...
12
Paraunitary Oversampled Filter Bank Design for Channel Coding
... of noise power is gained by the proposed coding method for the case N = 2 is demonstrated in Figure 6, where the resulting characteris- tics of a K = 6 channel filter banks decimated by N = 2 are ...the ...
10
Noise Standard Deviation Estimation for Additive White Gaussian Noise Corrupted Images using SVD Domain
... for additive white Gaussian noise ...and noise are separately ...of noise with the other existing ...application noise estimation is important for us to know in ...to ...
8
GLR Detector for Coded Signals in Noise and Interference
... in additive white Gaussian noise and the interference is studied, where there is no knowledge about the correlation between the received symbols and about the noise and interference ...
5
Molecular channel fading due to diffusivity fluctuations
... diffusion channel due to random environment changes have been neglected ...(i.e., channel fading has not been considered in a molecular communication con- ...of additive noise based research ...
5
Frame By Frame Digital Video Denoising Using Multiplicative Noise Model
... according to Coefficient of Variation that takes into account the local homogeneity of center to neighbouring pixels [13]. An iterative scheme is employed with adaptively estimated parameters in each iteration and the ...
6
International Journal of Computer Science and Mobile Computing
... Abstract— Photoplethysmography (PPG) is a non-invasive method of studies of the blood volume pulsations by detections and temporal analysis of the tissue back-scattered or transmitted optical radiation. It provides a ...
8
Improved Non-Local Means Algorithm Based on Dimensionality Reduction
... at noise level 10 and 50, ...for noise level σ=50 and it has been found that, at the edge location, the intensity profile of the proposed method is much closer to the noise free image than that of ...
102
Performance of AWGN Channel Using Least Squar...
... MIMO-OFDM, channel estimation plays a major ...different channel estimation methods, Least Square (LS), Least Square-Modified (LS-Mod) and Minimum Mean Square Error (MMSE) methods are commonly ...AWGN ...
7
Comparison of Channel Estimation Protocols for Coherent AF Relaying Networks in the Presence of Additive Noise and LO Phase Noise
... require channel knowledge in order to decode, our focus lies on the channel estimates that are used to calculate the relay ...of channel uses required to estimate all coefficient and (2) the need for ...
12
Bit Error Rate Analysis of Coded OFDM for Digital Audio Broadcasting System, Employing Parallel Concatenated Convolution Turbo Codes
... Gaussian noise. But problems faced by fading and multipath can be analyzed by choosing other channel models. Instead of QPSK modulation scheme, the same system can be analyzed using other modulation ...
9