MATLAB >> Matlab codes for TDMA, FDMA and CDMA

by dinsefo12 » Sat, 10 Apr 2004 19:18:32 GMT

Hi ,

I need a help in the performance comparison of GSM and CDMA system
with transmitter and receiver.

For CDMA,in transmitter,I generate a random data veator of (1,+1) or
(1,0), and I used 64-length Walsh code to spread them. But, here I
face a problem of how to generating a PN noise sequence. For the test
I generated 1 X 320 for Inphase-PN and 1 X 320 for Quadrature-PN, for
for 10 bit input stream.

For CDMA, in the receiver,I want to use a RAKE Receiver and correlated
with PN noise sequence.

BUT it seems the result is not right because I have a very high BER.

I wonder if any person can tell me if there are some problems with my
system as a whole(as described above)or any person can give me some
relative material for referece on simulation of CDMA fo END-to-END
with Multipath interference.

For the others of GSM (TDMA and FDMA), again I need help.

Thank you very much for your help.

Dinsefo


MATLAB >> Matlab codes for TDMA, FDMA and CDMA

by Chandresh Vora » Tue, 13 Apr 2004 00:04:54 GMT



Communications Blockset (based on Simulink) has couple of demos on WCDMA. It
also has a demo on Bluetooth, which might give you a starting point for FDMA
& TDMA.

HTH,
Chandresh

MATLAB >> Matlab codes for TDMA, FDMA and CDMA

by saravana4681 » Tue, 04 May 2004 19:20:00 GMT

hello sir,

i want for matlab code of TDMA,FDMA and CDMA.please help to me


thank you sir.
bye

Similar Threads

1. i need to have the performance analysis of TDMA,FDMA,CDMA -urgent pls

i need to have mat lab programing or simulation for the comparison of performance analysis of TDMA,FDMA,CDMA techniques pls help me.

2. FDMA, TDMA, CDMA simulation - MATLAB

3. need to have performance analysis of TDMA,FDMA,

need to have performance analysis of TDMA,FDMA,

4. I want a matlab codes for simulating cdma system with optical orthogonal codes - MATLAB

5. Multicode Multicarrier CDMA (MTC-MC CDMA//MC-MC CDMA)

Please can any one send me the Matlab code for simulate the Multicode Multicarrier CDMA (MTC-MC CDMA//MC-MC CDMA) using Walsh-Hadamard code, Gold Code & Kasami code in Rayleigh fading Channel + AWGN?  Thanks!

6. OT MC-CDMA AND MC-DS-CDMA SIMULATION USING MATLAB

7. MC-CDMA AND MC-DS-CDMA SIMULATION USING MATLAB

HELLO EVERYBODY!
I'M TRYING TO COMPARE MC-CDMA AND MC-DS-CDMA USING SINGLE USER AND
MULTI-USER DETECTION TECHNIQUES IN TERMS OF BIT ERROR RATE AND
SPECTRAL EFFICIENCY IN A MOBILE COMMUNICATION USING MATLAB.THAT IS
USING DIRECT SEQUENCE SPREAD SPECTRUM(TRANSMITTING THE CHIPS OVER
SEVERAL SUB-CARRIERS),PERFORMING THE MULTI-CARRIER MODULATION AND
DEMODULATION USING IFFT AND FFT OPERATIONS, SEPARATE THE USERS'
SIGNALS IN THE CODE DOMAIN. BY THE WAY, I HAVE NO PROBLEM WITH THE
THEORETICAL PARTS,CAN ANYONE HELP ME PLS?
THANKS IN ADVANCE!
BEST REGARDS!