Channel Bonding

daddy-bot is an IRC bot, written in PHP, designed for channel protection, entertainment, and channel help. The bot is very flexible, and you can script your own add-ons, called modules, much like TCL scripts for eggdrops.

The comb pilot aided channel estimation in ofdm modulation is considered. The power of pilot subchannels is under the control.The data experience frequency selective channel then the AWGN noise is added to make the situation worse. The bit error rate is ploted versus SNR.

The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts.The discrete input is...


Platforms: Matlab

Replacement for the SCCP channel driver in Asterisk. Extended features include Shared Lines, Presence / BLF, customizable Feature Buttons, and Custom Device State. Visit our discussion mailing list for help and join us as a developer if you like.


Platforms: Mac, BSD, Linux

A tool to transform single channel C code into multichannel C code. We are using pyparsing to provide a C sensitive find/replace mechanism. The resulting code is more testable than hand edited. The initial source base is DSP code.


Platforms: Windows, Mac, Linux

About Live Channel The only complete software solution for producing, streaming and broadcasting live video over the web and out to video simultaneously, replacing the functionality of expensive video production and broadcasting hardware. Whats New in this Version - Panther compatibility -...


Platforms: Mac

The Additive Noise Channel and the Additive Guassian Noise Channel are the simplest of all signal channels.The script mimics any experiments on these channels.


Platforms: Matlab

Description of program: I made program for 2 channel filters and 3 functions of non linearity. equalizer is modeled using both LMS and RLS algorithms from the output of the channel filter. And the delayed input is compared to the output of the equalizer and the error is used to model the...


Platforms: Matlab

Implements soft-decision Viterbi decoding for a rate 3/4 code over an AWGN channel using Simulink.The Viterbi decoder block from the Communications Blockset is enhanced to optimally support punctured codes.The attached BERTool session file compares the BER performance as the number of bits are...


Platforms: Matlab

This program performs a Monte Carlo simulation of a coherent QPSK communication system and plot the error probability performance over additive whit Gaussian noise channel. The detection is based on correlation metric. Simulation is performed for 10,000 bits and measurements are made accordingly.


Platforms: Matlab

A fast vectorized implementation of the ncc that handles color (3 channel) images as well as gray level.The algorithm for colored images is based on the ncc formulation for vector valued functions.Note: A bug that I found in the normxcorr2 was also fixed here.


Platforms: Matlab

Non Convex Optimization Algorithms for Group SparsitySolves a dummy OFDM sparse channel estimation problemReweighted Lm,p algorithm for noiseless case min||x||_m,p s.t. y = AxReweighted Lm,p algorithm for noisy case min||x||_2,p s.t. ||y - Ax||_qSmoothed L2,0 algorithm solves a smooth version...


Platforms: Matlab

The MATLAB program simulates binary frequency shift keying (BFSK) at baseband through Monte Carlo method. The goal is to simulate bit error rate (BER) over an additive white Gaussian noise (AWGN) channel. For realizing that, the effect of noise is represented in the baseband with Gaussian random...


Platforms: Matlab

Simple Matlab example simulating a BPSK transmission and reception in Rayleigh channel. The script performs the following(a) Generate random binary sequence of +1d-deOaos and -1d-deOaos.(b) Multiply the symbols with the channel and then add white Gaussian noise.(c) At the receiver, equalize...


Platforms: Matlab

This m-file finds the bit error rate performance of BPSK DS-SS system over (i) AWGN channel and (ii) Slow Rayleigh fading channel corrupted by AWGN. Compare the performance with simple BPSK system.In this simulation I have used two functions.So to see the result open all the files and then run...


Platforms: Matlab

A MFSK channel with AWGN is simulated. The simulation is implemented as per the book Digital Communications by Proakis. Reed-Solomon coding is used to enhance the reliability of the system.


Platforms: Matlab

Simple replacement of IMWRITE for TIFF files with alpha channel and XPOSITION, YPOSITION tagsDemonstrates how to write MEX-files in Haskell programming languageDemonstrates how to interface Haskell MEX-file to third party foreign library


Platforms: Matlab

I'm actually having trouble with the equalization of the channel, because the doppler effect introduces phase rotation, which I don't know how to correct. If anyone could help me, I' d be really thankful.


Platforms: Matlab

In this model we have shown how adaptive filter can perform and correct up the channel effect on signal. This model is showing how filter is adapting itself to channel at each iteration. You can see different scopes displayed on model screen like adaptive filter weights, scatter plots for message...


Platforms: Matlab

Dent Rayleigh model is similar to Jakes but uses Hadamard function in MATLAB to make the oscillators (somewhat) independent and thus provide results that are a little more realistic than the Jakes model.For more details, please read IEEE paper by Wu Z. from 2004 (Electronics Letters, Volume: 40,...


Platforms: Matlab