www.gusucode.com > Beam Alignment and Tracking for Autonomous Vehicular Communication using IEEE 802.11ad-based Radar > mmWave-V2I-Radar-master/v2i_main.m
clear; close all; clc; % =========================== PARAMETERS ================================ % [conf,BSLocX,LocLaneY,sInt,cLoc,cVel,cInitTime,e_radar,t_radar,s_radar,rPATT] = v2i_config('GREEDY',32.767/20,10); % =========================== CORRECTIONS =============================== % % Collision detection and velocity correction [xInt,vInt,tInt] = v2i_collision_correction(cInitTime,cVel,cLoc,conf.NCARS); % =========================== SIMULATION ================================ % % Main Simulation. We go over each Time Slot and perform simple operations % such as (1) calculate the distance from the Base Station (BS), (2) % calculate the SNR that each car would get and use it to (3) calculate the % Capacity in Mbps. tSym = 0; loc = cLoc; % Location of the cars. It is updated at each tSym locTot = zeros(conf.NCARS,conf.NSIMSLOTS); % Summary of locations of all the cars locTot(:,1) = loc; % Initial location summary distToBS = zeros(conf.NCARS,conf.NSIMSLOTS); % Summary of the distances SNRTot = zeros(conf.NCARS,conf.NSIMSLOTS); % Summary of the SNR of every car ThTotOmn = zeros(conf.NSIMSLOTS,1); % Summary oif the throughput (Omnipotent) ThTotSys = zeros(conf.NSIMSLOTS,1); % Summary oif the throughput (System) schedOmn = zeros(conf.NSIMSLOTS,1); % Car scheduled at each slot (Omnipotent) schedSys = zeros(conf.NSIMSLOTS,1); % Car scheduled at each slot (System) vSys = cell(conf.NCARS,1); % Estimation of the speed of cars tSys = cell(conf.NCARS,1); % Time the estimation happened locSys = inf(conf.NCARS,1); % Estimation of the location of cars for nSlot = 1:conf.NSIMSLOTS % End execution if all cars have exited the ROI if prod(loc > 0); fprintf('END OF EXECUTION - Cars out of the ROI\n'); break; end % BS located at (x=BSLocX,y=0). Cars located at (x=loc,y=LocLaneY) distToBS(:,nSlot) = sqrt(LocLaneY^2 + (BSLocX - loc).^2); % Calculate throughputs - it only serves for plotting [SNRTot(:,nSlot),ThList] = v2i_capacities(distToBS(:,nSlot),conf); % [SNRTot(:,nSlot),ThList] = v2i_throughput(distToBS(:,nSlot),TXBEAMWIDTH_AZ, TXBEAMWIDTH_EL, RXBEAMWIDTH_AZ, RXBEAMWIDTH_EL, TXPOWER, BANDWIDTH); % Decide wheather we need to perform radar operations if rPATT(nSlot) ~=0 % Radar operations based on pattern [vSys,tSys,locSys] = v2i_radar_operations(nSlot,tSym,rPATT,loc,sInt,vInt,tInt,e_radar,vSys,tSys,locSys); % Radar operations may take longer than one slot. The system needs % to increase the simulation time accordingly kmul = s_radar; else % Schedule car based on policy [schedOmn,ThTotOmn,schedSys,ThTotSys] = v2i_scheduling(sInt,loc,locSys,BSLocX,LocLaneY,schedOmn,ThTotOmn,schedSys,ThTotSys,nSlot,conf); % Communications take only 1 slot per iteration -> kmul=1 kmul = 1; end % Update time to the next slot tSym = tSym + kmul*conf.TSLOT; % Update locations loc (Omnipotent) and locEst (System) [loc,locSys] = v2i_update_location(loc,locSys,vSys,tSys,conf.CARSID,tInt,vInt,s_radar,tSym,conf.TSLOT,kmul); % Update summary of locations locTot(:,nSlot) = loc; end SNRCut = SNRTot(:,1:nSlot-1); ThCutOmn = ThTotOmn(1:nSlot-1,1); ThCutSys = ThTotSys(1:nSlot-1,1); locCut = locTot(:,1:nSlot-1); distToBSCut = distToBS(:,1:nSlot-1); schedOmnCut = schedOmn(1:nSlot-1); schedSysCut = schedSys(1:nSlot-1); fprintf('============= REPORT =============\n'); fprintf('(Omnipotent) - Average Throughput %.2f Mbps (Shannon bound)\n',mean(ThCutOmn).*1e-3); fprintf('(Omnipotent) - Jain-Fairness index %.2f\n',(sum(ThCutOmn)^2)/(conf.NCARS*sum(ThCutOmn.^2))); fprintf('(System) - Average Throughput %.2f Mbps (Shannon bound)\n',mean(ThCutSys).*1e-3); fprintf('(System) - Jain-Fairness index %.2f\n',(sum(ThCutSys)^2)/(conf.NCARS*sum(ThCutSys.^2))); fprintf('Overhead Radar = %.3f (%%)\n',100*(length(find(rPATT~=0))/length(rPATT))); % =========================== PLOTTING ================================== % LineStyle = {':','-','-.','--'}; ColorList = {'c','b','m','k'}; leg = cell(conf.NCARS,1); figure(1); hold on; figure(2); hold on; for id = 1:conf.NCARS ix1 = mod(id,length(LineStyle)) + 1; ix2 = mod(ceil(id/length(LineStyle)),length(ColorList)) + 1; figure(1); plot((1:nSlot-1),SNRCut(id,:),'Color',ColorList{ix2},... 'Linestyle',LineStyle{ix1},'LineWidth',2); figure(2); plot((1:nSlot-1),distToBSCut(id,:),'Color',ColorList{ix2},... 'Linestyle',LineStyle{ix1},'LineWidth',2); leg{id} = strcat('Car with ID=',strtrim(num2mstr(id))); end figure(1); legend(leg); xlabel('Slots') title('SNR'); grid minor; figure(2); dMaxInROI = sqrt( LocLaneY.^2 + (BSLocX-sInt(1)).^2 ); plot((1:nSlot-1),dMaxInROI.*ones(nSlot-1,1),'k-'); legend(leg); title('Distance to BS'); grid minor; figure(3); subplot(1,2,1); b1 = bar(ThCutOmn.*1e-3); b1.FaceColor = 'flat'; for n = conf.CARSID idx = find(schedOmnCut==n); b1.CData(idx,:) = repmat(conf.colorList{n},length(idx),1); end xlabel('Slot index','FontSize',12); ylabel('Throughput in Mbps','FontSize',12); title('Omnipotent','FontSize',13); grid minor; subplot(1,2,2); b2 = bar(ThCutSys.*1e-3); b2.FaceColor = 'flat'; for n = conf.CARSID idx = find(schedSysCut==n); b2.CData(idx,:) = repmat(conf.colorList{n},length(idx),1); end xlabel('Slot index','FontSize',12); ylabel('Throughput in Mbps','FontSize',12); title('System','FontSize',13); grid minor; % To-Do List % (END) Last requirement to be implemented. Incorporate function that % checks wheather the transmission was succesful or failed based on the % predicted location of the car. KEY