Local Channel

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.

This script simulates QPSK or 4-QAM modulation scheme in Rayleigh channel and compares it to theoretical limits.QPSK gives 3dB SNR degradation when compared to BPSK but twice as much throughput.I hope this will be helpful for students of wireless communication.

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

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

Here is a simulation based proof highlighting the superiority of the MMSE[Min Mean Sq Error] channel estimator over the LS[Least Sq] estimator.The two parameters of evaluation turn out to be, quite logically, the SER[Symbol Error Rate] and the Mean Square Error.The channel is assumed to be...


Platforms: Matlab

In this programe a highly scattered enviroment is considered. The Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after SVD decomposition) is distributed as water-filling algorithmThe pdf of the matrix "lanada" ( V in SVD...


Platforms: Matlab

This code calculates BER values for 16-QAM in Rayleigh Channel.You can compare the BER plot with the theoretical values from MATLAB BER TOOL.


Platforms: Matlab

The function calculates the Global to Local coordinate transformation matrix for a beam in space. [x0,y0,z0] and [x1,y1,z1] are the coordinates of the beam ends. alpha is the twist over the axis perpendicular to the beam cross sectional area, usually set to 0.


Platforms: Matlab

CM wav files are subjected to variable bit errors simulating serial transmission through a noisy channel.


Platforms: Matlab

LOCALPEAKS Find local peaks and troughs in a vector SYNTAX peaks = localpeaks(X) peaks = localpeaks(X,MODE) DESCRIPTION peaks = localpeaks(X) locates the local peaks in vector X. peaks = localpeaks(X,MODE) locates local features specified by MODE. MODE can be set to 'peaks' (default), 'troughs'...


Platforms: Matlab

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

Groovy, Funky Channel 27! The only CMS with a hologram developer!Channel 27 is a hierarchical page-centric CMS, with support for multiple users and user levels. A simple and very modular design means it is easy to extend and maintain.


Platforms: PHP

This is a Local Lyric Displayer for winamp's minibrowser... Local Lyric Displayer is writen by php and uses mysql database to get lyrics and uses disq's winamp plugin.


Platforms: PHP

Now you can easily display the current local weather in your area on your website. This plugin will pull the current weather forecast directly from Yahoo! Weather to give you the latest up to date weather conditions.-RECENTLY ADDED: Sidebar Widget.-Server compatibility by utilizing WordPress'...


Platforms: PHP

Local Analytics is a WordPress plugin for integrating Google Analytics, the free web analysis service by Google, into your blog. The plugin is highly configurable and also allows caching of the ga.js file locally, inorder to enable faster loading of pages.The plugin is highly configurable, yet...


Platforms: PHP

OverviewHave you ever needed to hide the local task tabs? Typically, you override theme_menu_local_tasks() and, based on some condition, return an empty string.This module gives you the flexibility to hide the local tasks with Context by providing a new reaction to hide the tabs. No coding is...


Platforms: PHP

The Local Coordinates model displays the position of a star in local (Altitude/Azimuth) coordinates. The horizon is shown along with the four cardinal directions (N, E, S, and W). The latitude of the observer is set at 35.5 degrees which sets the location of the north celestial pole (teal)...


Platforms: Mac

The Local Projects Database (LPD) is a web-based tool for managing records on development assistance activities financed and/or implemented by development partners. This java based application, allows inserting, maintaining and exchanging activity data.


Platforms: *nix

local::lib is a Perl module that provides a quick, convenient way of bootstrapping a user-local Perl module library located within the user's home directory. It also constructs and prints out for the user the list of environment variables using the syntax appropriate for the user's current shell...


Platforms: *nix

virtstrap's project local commands virtstrap-local is not meant to be installed manually


Platforms: *nix