input_config.m

基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator.

%__________________________________________________________________________
% Type:                 :   File Header
% File name             :   input_config
% File Description      :   Instructions / function calls to initialize the
%                           Different objects / components of the simulator
%__________________________________________________________________________
%
%__________________________________________________________________________
% Type:                 :   Function Header
% Function name         :   input_config
% input                 :   st_initConfig,rombvec
% output                :   st_initConfig, st_baseStations,
% st_mobileStations
% calling functions     :
% called functions      :   testConfig,initialize_baseStation,
%                           initialize_baseStation
%
% Function Description  :   Instructions / function calls to initialize the
%                           Different objects / components of the simulator
%
% The functional flow of the input module
% 1.	Read the configuration file & Initial Test Conditions
% 2.	Initialize the cells. i.e
%     a.	create cell objects,
%     b.	give them initial dimensions
% 3.	Initialize Base Stations, i.e.
%     a.	Create Base station objects
%     b.	Give them initial values, which have been read from the configuration file
% 4.	Initialize Mobile Station objects, i.e.
%     a.	Create Mobiles objects
%     b.	Initialize them as per configuration file.
% 5.	Initialize channel conditions, i.e
%     a.	Create the channel object
%     b.	Initialize it
%        % i.	Generate the path loss + shadowing grid
%        % ii.	Initialize rms delay spread model
%        % iii.	Initialize the power delay profile model
% 6.	Transfer control to the main simulator engine
%    % a.	With information about the scheduling and link adaptation algorithm under test, test conditions
% __________________________________________________________________________


function [st_initConfig, st_baseStation, st_measurement, st_channelGrid,st_mobileStations] = ...
    input_config(test_avg_velo_kmph,test_nu_active_users,test_scenario,test_resource_allocation,st_initConfig,Comm_conf,Root_path)
%-----------------------------
% Bring in a GUI
%-----------------------------
% When there is the GUI, then the settings must be saved , as of now it can
% be a .mat file, but if a text format is used, that would have helped a
% lot.
% Read the config file and load the testConfig structure

%Call the test definition
test_definition;
initConfig;

%-----------------------------
% Initialize the cells
%-----------------------------
[st_initConfig] = initialize_base_station(st_initConfig);

%-----------------------------
% Initialize the mobile stations
%-----------------------------
[st_initConfig,st_mobileStations] = initialize_mobile_station(st_initConfig);


%-----------------------------
% Initialize the short term fading channel objects. They are stored in the
% structures for mobile stations
%-----------------------------
% %create a lognmap for shadowing.
[st_channelGrid.lognmapShadow, st_channelGrid.mapvecShadow] = crelognmap(st_initConfig.locBS, st_initConfig.rombvec, st_initConfig.corrDist);
%if ~exist([Root_path,'/sys_lv_simu/sys_lv_main_funcs/ch_mat.mat'],'file')
ch = channelgenerator2(Comm_conf.t_rms,Comm_conf.fd,Comm_conf.sampling_rate,Comm_conf.N,Comm_conf.cp_l,Comm_conf.BW,10100,Comm_conf.divn);
fft_ch2 = fft(ch,Comm_conf.N,1);
fft_ch = fft_ch2(1:st_initConfig.nuSubCarr,:,:);
gain_ch = abs(fft_ch).^2;
%    save ch_mat gain_ch
%end
%load ch_mat gain_ch %ch
st_channelGrid.gain_ch=gain_ch;
st_channelGrid.logn = uselognmap(st_initConfig.locMS, st_channelGrid.lognmapShadow, st_channelGrid.mapvecShadow);