Inserts scattered pilot symbols in the OFDM frame. d_data_pilot=OFDM_InsertScattteredPilot(d_data,Para) The function works for SISO systems. Input arguments: d_data: matrix [Para.nSubcarriers, Ns] containing data symbols. Para: structure containing the modulation parameters. Outputs arguments: d_data_pilot: matrix [Para.nSubcarriers, Ns] containing data and pilots symbols.
0001 function d_data_pilot=OFDM_InsertScattteredPilot(d_data,Para) 0002 % Inserts scattered pilot symbols in the OFDM frame. 0003 % 0004 % d_data_pilot=OFDM_InsertScattteredPilot(d_data,Para) 0005 % 0006 % The function works for SISO systems. 0007 % 0008 % Input arguments: 0009 % 0010 % d_data: matrix [Para.nSubcarriers, Ns] containing data symbols. 0011 % 0012 % Para: structure containing the modulation parameters. 0013 % 0014 % Outputs arguments: 0015 % 0016 % d_data_pilot: matrix [Para.nSubcarriers, Ns] containing data and pilots symbols. 0017 0018 0019 % This file is part of WaveComBox: www.wavecombox.com and is distributed under the terms of the MIT license. See accompanying LICENSE file. 0020 % Original author: François Rottenberg, May 3, 2018. 0021 % Contributors: 0022 % Change log: 0023 0024 d_data_pilot=d_data; 0025 0026 if Para.N_T==1 0027 for m=Para.ScatteredPilotSubcarriers 0028 for l=Para.ScatteredPilotSymbols 0029 d_data_pilot(m,l)=sqrt(Para.Ep)*(randi([0 1])*2-1); 0030 end 0031 end 0032 else 0033 error('Function not yet implemented for MIMO') 0034 0035 end 0036