OFDM system in Matlab

I want a freelancer to do Matlab coding for OFDM System. These codes are also available online so freelancer can use the existing codes. I just want the below two simulations to work and get the output in Matlab. Simulation 1: Write matlab code to Simulate OFDM system with different modulation scheme like (BPSK , QPSK and (16 , 64) QAM) and the transmitted signal pass through mutlipath rayleigh channel (fast fading) which the channel has (multi path and its delay and its gain and the Doppler frequency). In the receiver, use adaptive algorithms (RLS , LMS and Bidirectional LMS) to estimate the channel and then detect the transmitted data. Simulation 2: Design normal OFDM system which include ordinary training sequence (pilot) in front of each block of data to be transmitted, with different modulation scheme like (BPSK , QPSK and (16 , 64) QAM) and the transmitted signal pass through mutlipath rayleigh channel (fast fading) which the channel has (multipath and its delay and its gain and the Doppler frequency). In the receiver used ( RLS , LMS and Bidirectional LMS) adaptive algorithm to estimate the channel and then detect the transmitted data. All you need to do is to make the Matlab program to simulate both conditions and obtain the results in the form of graphs. The freelancer can use the existing available Matlab code and make a two .m files such as simulation1.m and simulation2.m