MPSK Simulation (BPSK,QPSK,8PSK)

This m-file simulates MPSK (theoretical and simulated) with Gray coding

Description

This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).

• MATLAB release: MATLAB 6.5 (R13)

[J C]

These commented lines should be corrected as follows:
157 %where Q(x)=.5*erfc(sqrt(x)/sqrt(2)) to
    %where Q(x)=.5*erfc((x)/sqrt(2))
158 %PE(M=4)=.5*erfc(1.5786/sqrt(2))=6.5e-3 to %PE(M=4)=.5*erfc(2.484/sqrt(2))=6.5e-3

Just trying to keep things straight-JC

[bala sundaram]

its nice

[ramiro csatro]

 

[Ming Li]

it is bad.
=========================================
??? Undefined command/function 'graymapPSK'.

Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols

[Ming Li]

Sorry

[jose da Silva Filho]

very nice site

[Jean Pierre MALLET]

 

[ahmed ali]

send me the error calculation

[maqsood ahmad]

this is v good

[inderjeet kaur]

pls help me hw to include this grayPSK

[J C]

2/20/07 A correction needs to be added in the function call function symbols=graymapPSK(bits). In case 2, between lines 184 and 184, add %symbols = [1-bits(1,:)-bits(2,:);bits(2,:)-bits(1,:)]

[J C]

2/20/07 After reviewing the comparsion result between the Matlab 8PSK Gray coding demo (using Communications Blockset) and the MPSK graphs in this m file, I have concluded this m file gives corresponding results. Usually,SER is compared with Eb/No but this m file graph shows Es/No. The m file graph for SER vs Es/NO 8PSK can be shifted to the left by approximatley 4.77dB because Eb=ES-10LOG(k) where k is LOG2(8)=3. QPSK SER can be shifted to the left by ~3dB where k is LOG2(4).

[Damodar Kandel]

Good done

[hamed nozari]

 

[Nuri Misbah]

May I get free copies of comparison of PSK modulations technics simulated by MATLAB.

[BETT HILLARY KIPKOECH]

 

[Vladimir Rasovic]

A STA DA KAZEM

[Muhammad Alvi]

i need ur approval to get the code used in matlab

[wang songhai]

 

[st zim]

good

[rausan aja]

its a good article

[Frank Stepanek]

 

[bhachandra badhiye]

 

[hossam kasem]

iam in the faculty of engineering and iam indeed need this file

[Lora chen]

 

[ibrahim alahmad]

good

[A B]

 

[farid samsami]

salam

[diyar faxer]

no comments

[Ajdar Sadigov]

Salam

[thiru murugan]

i need 8psk matlab coding

[oscar sulcani R]

good

[José Sandoval]

Gracias

[fuad khan]

 

[muhammad omer]

okay

[Holly]

Can anyone help me?
I face the problem to complite the matlab code with the following error:
----------------------------------------------------------------------
??? Undefined command/function 'graymapPSK'.
 
Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols
-----------------------------------------------------------------------

[Holly]

Can anyone help me please? I need it urgently.

[fanani muhammad]

i have the same problem with holly :
??? Error: File: graymapPSK.m Line: 8 Column: 17
The expression to the left of the equals sign is not a valid target for an assignment.

Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols

somebody help please ASAP......... or email me: [e-mail]

[abd ely]

same error

plz alll i need the solution for this

Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols

[Honey Kataria]

same error

plz alll i need the solution for this

Error in ==> MPSK at 49
symbols = graymapPSK(bits); % gray code map to symbols

[Mihiri]

i got error as
??? Input argument 'bits' is undefined.

Error in ==> C:\MATLAB6p5\work\symbols.m
On line 4 ==> K = size(bits,1);
can someone help me

[aristide ngabo]

 can anyone help me to find Matlab codes for simulating:

BER using convolutional coding with QPSK and 16QAM modulations in an AWGN and Rayleigh channels as a function of the average SNR (i.e. average ES/N0). The (punctured) convolutional code is the one standardized in IEEE 802.16 with a polynomial generators of {133o, 171o}, constraint length L=7 and a native code rate r=1/2.