You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: get_BLER.m
    path of file: ./repos/C-V2X
    
    the code of the file until where you have to start completion: function [ avg_BLER ] = get_BLER ( SINR , PDF , coding , step_dB)

% get_BLER calculates the average BLER experienced given the PDF of the 
% SINR at the receiver and a given coding scheme.
%
% This is an auxiliary script used by functions CV2XMode4, CV2XMode4_common,
% CV2XMode4_Step2 and CV2XMode4_Step3 to model the communication performance 
% of C-V2X or LTE-V Mode 4 using the analytical models described in:
% 
%    Manuel Gonzalez-Mart√≠n, Miguel Sepulcre, Rafael Molina-Masegosa, Javier Gozalvez, 
%    "Analytical Models of the Performance of C-V2X Mode 4 Vehicular Communications", 

    
function [ avg_BLER ] = get_BLER ( SINR , PDF , coding , step_dB)

% get_BLER calculates the average BLER experienced given the PDF of the 
% SINR at the receiver and a given coding scheme.
%
% This is an auxiliary script used by functions CV2XMode4, CV2XMode4_common,
% CV2XMode4_Step2 and CV2XMode4_Step3 to model the communication performance 
% of C-V2X or LTE-V Mode 4 using the analytical models described in:
% 
%    Manuel Gonzalez-Mart√≠n, Miguel Sepulcre, Rafael Molina-Masegosa, Javier Gozalvez, 
%    "Analytical Models of the Performance of C-V2X Mode 4 Vehicular Communications", 
%    IEEE Transactions on Vehicular Technology, Vol. 68, Issue 2, Feb. 2019. DOI: 10.1109/TVT.2018.2888704
%    Final version available at: https://ieeexplore.ieee.org/document/8581518
%    Post-print version available at: https://arxiv.org/abs/1807.06508
%
% Input parameters:
%    SINR: Signal-to-Interference and Noise Ratio levels for different distances. It is a matrix where each row represent the SINR levels for a given Tx-Rx distance
%    PDF: Probability Density Function of the SINR levels for different distances. It is a matrix where each row represent the PDF for a given Tx-Rx distance
%    coding: coding rate considered (only 1 is implemented but could easily be extend