Home > WaveComBox > Toolbox > Transmitter > GeneratePreamble.m

GeneratePreamble

PURPOSE ^

Generates a preamble.

SYNOPSIS ^

function [ d_preamble ] = GeneratePreamble(d_TR, Para, preamble_type)

DESCRIPTION ^

 Generates a preamble.

 function [ d_preamble ] = GeneratePreamble(d_TR, Para, preamble_type)

 The function works for SISO and some MIMO systems.

 Input arguments:

   d_TR: vector [2*Para.M, 1] of pilot symbols.

   Para: structure containing the modulation parameters.

   preamble_type: optional, type of preamble, 'synchro' (only for Para.N_T
   == 1) or 'channel_estimation' (by default).

 Outputs arguments:

   d_preamble: preamble symbols. Size: matrix [2*Para.M, ~] if Para.N_T ==
   1 and multidimensional array [Para.N_T, 2*Para.M, ~] otherwise

 See also OFDM_GeneratePreamble, FBMC_OQAM_GeneratePreamble.

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [ d_preamble ] = GeneratePreamble(d_TR, Para, preamble_type)
0002 % Generates a preamble.
0003 %
0004 % function [ d_preamble ] = GeneratePreamble(d_TR, Para, preamble_type)
0005 %
0006 % The function works for SISO and some MIMO systems.
0007 %
0008 % Input arguments:
0009 %
0010 %   d_TR: vector [2*Para.M, 1] of pilot symbols.
0011 %
0012 %   Para: structure containing the modulation parameters.
0013 %
0014 %   preamble_type: optional, type of preamble, 'synchro' (only for Para.N_T
0015 %   == 1) or 'channel_estimation' (by default).
0016 %
0017 % Outputs arguments:
0018 %
0019 %   d_preamble: preamble symbols. Size: matrix [2*Para.M, ~] if Para.N_T ==
0020 %   1 and multidimensional array [Para.N_T, 2*Para.M, ~] otherwise
0021 %
0022 % See also OFDM_GeneratePreamble, FBMC_OQAM_GeneratePreamble.
0023 
0024 
0025 % This file is part of WaveComBox: www.wavecombox.com and is distributed under
0026 % the terms of the MIT license. See accompanying LICENSE file.
0027 % Original author: François Rottenberg, May 3, 2018.
0028 % Contributors:
0029 % Change log:
0030 
0031 
0032 
0033 switch Para.Modulation
0034     case 'CP-OFDM'
0035         if exist('preamble_type','var')==0
0036             [ d_preamble ] = OFDM_GeneratePreamble(d_TR, Para);
0037         else
0038             [ d_preamble ] = OFDM_GeneratePreamble(d_TR, Para, preamble_type);
0039         end
0040     case 'FBMC-OQAM'
0041         if exist('preamble_type','var')==0
0042             [ d_preamble ] = FBMC_OQAM_GeneratePreamble(d_TR, Para);
0043         else
0044             [ d_preamble ] = FBMC_OQAM_GeneratePreamble(d_TR, Para, preamble_type);
0045         end
0046     otherwise
0047         error('Modulation not implemented')
0048 end
0049 
0050 
0051 end

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