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Re: Simulation of flat Fading channels by Rayleigh distribu
Simply you can use rayleighchan as the following,
if flat static channel --> rayleighchan;
if flat non-static channel --> rayleichan(ts,fd) where ts is the sampling time of your system (1/B.W) and fd is the maximum doppler shift...
I am asking about usage of rayleighchan in case of 2 paths of more are used so how to extract my frequency channel response in the receiver for perfect channel estimation and to recover my signal back ?
Briefly again, the relation is a direct one which depends mainly on a minimum required Signal to noise ratio (Or signal to interference ratio as a general case) so you should define a certain db of acceptance.
you should refer to the following links...
Hello,
Its a problem of small number of OFDM symbols or small bit stream you are performing your simulation on.
In case of your virtual memory not capable of carrying larger streams so, you can run your curve over a larger number of runs to take average.
Outage probability is related to the channel capacity which returns to the channel model assumed of course, differing from each relay to another makes a relay can contribute in cooperation or not which is mainly based on its Outage probability or in other terms outage "Capacity" which is limited...
Fading generally is a signal loss either in amplitude or phase due to sudden changes in Channel response.
Large scale fading " Shadowing" concerns about large distances effect so, its affect appears clearly incase of the displacement of either the Transmitter or the Receiver. The most clear...
rayleighchan usage
Hello,
I would like to know some notes about using rayleighchan in Matlab in generating a frequency selective Rayleigh channel.
In the transmitter,
Ts=1e-6; % sample time of the input signal, in seconds
Fd=40; % maximum Doppler shift, in Hertz
TAU=[0]; % row...
Actually,
Increasing receiving antennas provide diversity gain which benefits in decreasing the BER Curve slope. However, space time codes which needs the use of more than one Transmitting antenna provide shifting BER Curve to left which also, can be considered as a benefit.
sdr
A Software-Defined Radio –or an SDR– is a radio communication system that should be able to tune into any frequency band, and receive any modulation scheme across a large frequency spectrum by means of a programmable hardware which is controlled by software. The goal of an SDR is to produce...
GUI in matlab is easy to deal with, where u can open it easily from the down toolbar .
you can form really easy friendly user interface where from the blank screen select the part u want to make in it a toolbar or a push button and then select it to make its m-file as required by u and to add...
matlab is the best interfacing language using GUI that is simplest in implementation >>> i have experience in this field >> contact if more info needed
I am doing my final year project software defined radio and applying zigbee standard
for who interested i am asking about the SRRC filter is it filtering bit by bit or just a complete frame after the other.
Re: sdr
Hi hoda
sdr has many future trends specially one based on FPGA design ; i am a student in the faculty of engineering and my final project in this field for any required info just contact me.
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