This MATLAB section of source code covers signal processing, image processing MATLAB source codes. It include FIR, IIR, scrambler, interleaver, FFT, convolution, correlation, interpolation, decimation, CRC, impairments, data type conversions and more. RS encoder, convolutional encoder, viterbi decoder, OFDM, OFDMA, MIMO is also covered. WiMAX, WLAN, LTE source codes are also provided.

## Scrambler and Descrambler code

Refer Scrambler descrambler for design of scrambler and descrambler as per IEEE 802.16-2004 wimax standard specifications.

## Interleaver and Deinterleaver

Refer Interleaver deinterleaver as per equation defined in wimax standard.

## BPSK,QPSK,16QAM and 64QAM Data Mapping

Refer Data Modulation page for BPSK, QPSK, 16QAM and 64QAM modulation matlab source code.

## 16 Point Decimation in Frequency FFT MATLAB code

Refer 16point IFFT
code very useful for IFFT implementation from scratch very useful for understanding the concept.

## Correlation-Auto,Cross

Refer correlation
code very useful for understanding autocorrelation and cross correlation concepts. It also provides comparison with matlab built in functions.

## Convolution

Refer convolution
matlab source code and compares the same with matlab built in function.

## Interpolation or Up sampling

Refer Interpolation which is used for upsampling digital samples to the desired sampling rate.

## Decimation or Down sampling

Refer Decimation which is used for downsampling digital samples to the desired sampling rate.

## Convolutional Encoder and Viterbi decoder

Refer Convolutional Encoder and viterbi decoder with the specifications defined.
Generator Polynomials: 25 (8), 33 (8), 37 (8)
no. of memory elements = 4

## FIR filter

Refer FIR Filter which covers FIR digital filter matlab source code. It describes FIR filter as per rectangular,Bartlett,Blackman,Chebyshev,Hamming and Hanning window types.

## IIR Filter

Refer IIR Filter BUTTERWORTH digital low pass filter.

## Low Pass FIR Filter

Refer Low Pass FIR using firrcos function and matlab FDA tool.

## CRC8 and CRC32 generation

Refer CRC Generation code as per CRC8 and CRC32 polynomials.

## OFDM basic transmitter and receiver

Basic OFDM Transmitter and receiver MATLAB Code➤➤

## Reed Solomon Encoder

Refer RS Encoder as per wimax specifications.

## CTC Encoder matlab source code

Refer CTC Encoder matlab source code.

## MIMO STBC 2T1R and 2T2R

Refer MIMO code as per 2x1 and 2x2 STBC MIMO configurations.

## WLAN OFDM physical layer

Refer WLAN OFDM PHY page which explains and provide link for OFDM physical layer as per WLAN 802.11a standard.

## WiMAX OFDM Physical layer

Refer WiMAX OFDM PHY page which explains and provide link for wimax physical layer blocks and matlab source code.

## LTE source codes

Refer LTE simulators page to refer LTE source codes written in MATLAB.

## IRIS Edge detection

Refer IRIS Detection matlab code.

## OFDMA basic transmitter and receiver

Refer OFDMA Tx Rx code as per OFDMA specifications.

## Carrier aggregation concept with OFDM example

Refer carrier aggregation matlab source code with basic block diagram.

## CCDF matlab source code

Refer CCDF code useful for plotting CCDF curve in PAPR analysis.

## Text based data compression(Huffman,RLE,Arithmetic coding,LZW)

Refer Data Compression code which mention basics of Huffman,RLE,Arithmetic coding,LZW techniques and provide link to download matlab code.

## DWT based Image compression

Refer DWT image Compression code which mention four basic steps for image compression. It is haar based transform algorithm with threshold detection(soft and hard). It mentions RLE data compression for further reducing the image data.

## Edge detection

Refer Edge Detection matlab source code.

## PTS Algorithm for PAPR Reduction

Refer PTS Algorithm for PAPR reduction.

## OFDM based Preamble generation

Refer preamble generation for OFDM systems such as WLAN, WiMAX and LDACS etc.

## Time offset estimation and correction algorithm for OFDM using preamble

Refer Time offset estimationa and correction algorithm for OFDM system. This preamble is used in LDACS system for aeronautical communication between AS (Aircraft Station) and GS (Ground Station).

## Frequency offset estimation and correction for OFDM

Refer Frequency offset estimation and correction algorithm for OFDM system.

## CDMA MATLAB code for single user

Refer CDMA MATLAB Code for single user.

## OFCDM MATLAB code consisting of OFDM and CDMA chain for single user

Refer OFCDM MATLAB Code housing OFDM and CDMA. The code is simulated for a single user.

Refer SC-FDMA matlab simulation code.

## PN sequence generation

Refer PN sequence generation basics and matlab code.

## Useful Links to MATLAB codes

Refer following as well as links mentioned on left side panel for useful MATLAB codes.
PTS for PAPR reduction  OFDM Preamble generation  Time off estimation corr  Freq off estimation corr  channel estimation  11a WLAN channel  11g WLAN channel  IIR Filter
Low Pass FIR
Viterbi decoder
CRC8 CRC32
AM FM PM modulation