无线传感器网络WSN中Leach和heed的性能对比+仿真录像

clc; clear; close all; warning off; addpath(genpath(pwd)); N = 100; %节点数 W = 200; %网络长度 L = 200; %网络宽度 Ei = 2; %每个节点的初始能量（焦耳） CHpl = 3000; %每轮簇头的数据包大小（位） p = 5/100; %期望的簇头百分比 R = 50; %群集的范围 pMin = 10^-4; %可能的最低CH_prop num_rounds = 2000; %最大模拟轮数 NonCHpl = 200; %每轮正常节点的数据包大小（位） Tsetup = 4; %安装阶段的平均时间（秒） Tss = 10; %稳态阶段的平均时间（秒） Etrans = 1.0000e-05; %传输一位的能量 Erec = 1.0000e-05; %接收一位的能量 Eagg = 1.0000e-07; %数据聚合能量 Efs = 0.3400e-9; %自由空间模型放大器的能量 % Position of sink SX = W/2; SY = L/2; net = [ones(1,N);rand([1,N])*W;rand([1,N])*L]; % Preallocation for energy calculations E = Ei*ones(1,N); % Energy left in each node EH = zeros(1,num_rounds); % Preallocation for dead nodes calculations Ecrit = 0; % Critical energy left in node to call it alive Ncrit = fix((95/100)*N); % Critical number for dead nodes to stop simulation Dead = false(1,N); % Status of all nodes 0:Alive 1:Dead DeadH = zeros(1,num_rounds); % Preallocation for Bits sent calculations BitsH = zeros(1,num_rounds); figure('Position',[34 30 792 613]); for r=1:num_rounds % iterating on each round [net(1,:),CH] = Leach_algo(net(1,:),Dead,p,r); tmp = find(CH); for i=1:N if isempty(net(2,CH)) else [~,aa]=min(sqrt((net(2,CH) - net(2,i)).^2 + (net(3,CH) - net(3,i)).^2)); net(1,i) = tmp(aa); end end EH(r) = sum(E); numClust = length(find(CH)); D = sqrt((net(2,CH) - SX).^2 + (net(3,CH) - SY).^2); E(CH) = E(CH) - (((Etrans+Eagg)*CHpl)+(Efs*CHpl*(D.^ 2))+(NonCHpl*Erec*round(N/numClust))); % second rest of nodes rest = N-numClust-sum(double(Dead)); mD = zeros(1,rest); tmp = net(2:3,~CH&~Dead); for i=1:rest, mD(i) = fun(tmp(1,i),tmp(2,i),net,CH,SX,SY); end E(~CH&~Dead) = E(~CH&~Dead) - ((NonCHpl*Etrans) + (Efs*CHpl*(mD.^2)) + ((Erec+Eagg)*CHpl)); %finally updating alive status to all nodes E(Dead) = 0; Dead(E<=Ecrit) = true ; DeadH(r)=sum(double(Dead)); %%%% sent bits %%%% BitsH(r+1) = BitsH(r) + numClust*CHpl + rest*NonCHpl; net = DrawNet(net,N,CH,Dead,SX,SY,1); title(['Normal nodes:Black ---- CH:Red ---- Dead:Empty circle --- round (',num2str(r),')']); drawnow if DeadH(r)>=Ncrit,break;end % Stop simulation when 5% or less is alive end close all T_L = (Tsetup+Tss)*(0:r-1); EH = EH(1:r); EHdis_L = (N*Ei)-EH; DeadH = DeadH(1:r); AliveH_L = N-DeadH; BitsH_L = BitsH(2:r+1); net = [zeros(1,N);net(2:3,:)]; cost = zeros(1,N); for i=1:N Dist = sqrt(((net(2,:)-net(2,i)).^2) + ((net(3,:)-net(3,i)).^2)); Snbr = Dist <= R; cost(i) = sum(Dist(Snbr))/(sum(Snbr)-1); end E = Ei*ones(1,N); EH = zeros(1,num_rounds); Ecrit = 0; Ncrit = fix((98/100)*N); Dead = false(1,N); DeadH = zeros(1,num_rounds); % Preallocation for Bits sent calculations BitsH = zeros(1,num_rounds); figure('Position',[34 30 792 613]); % Simulating for each round for r=1:num_rounds [CH,net] = HEED_algo(R,Dead,p,pMin,E,Ei,net,cost); EH(r) = sum(E); %get all energy left in all nodes % first CH numClust = length(find(CH)); D = sqrt((net(2,CH) - SX).^2 + (net(3,CH) - SY).^2); E(CH) = E(CH) - (((Etrans+Eagg)*CHpl)+(Efs*CHpl*(D.^ 2))+(NonCHpl*Erec*round(N/numClust))); % second rest of nodes rest = N-numClust-sum(double(Dead)); mD = zeros(1,rest); tmp = net(2:3,~CH&~Dead); for i=1:rest, mD(i) = funH(tmp(1,i),tmp(2,i),net,CH,SX,SY); end E(~CH&~Dead) = E(~CH&~Dead) - ((NonCHpl*Etrans) + (Efs*CHpl*(mD.^2)) + ((Erec+Eagg)*CHpl)); %finally updating alive status to all nodes E(Dead) = 0; CH(Dead) = false; Dead(E<=Ecrit) = true ; DeadH(r)=sum(double(Dead)); BitsH(r+1) = BitsH(r) + numClust*CHpl + rest*NonCHpl; net = DrawNet(net,N,CH,Dead,SX,SY,1); title(['Normal nodes:Black ---- CH:Red ---- Dead:Empty circle --- round (',num2str(r),')']); drawnow if sum(Dead)>=Ncrit,break;end end T = (Tsetup+Tss)*(0:r-1); EH = EH(1:r); EHdis = (N*Ei)-EH; DeadH = DeadH(1:r); AliveH = N-DeadH; BitsH = BitsH(2:r+1); close all figure('Position',[131 59 792 613]); plot(T,EHdis,'-x') plot(T,EHdis,'-x',T_L,EHdis_L,'-x'); xlabel('Time (s)'); ylabel('Energy (j)') title('Total energy dissipated') legend('HEED','LEACH') figure('Position',[298 66 792 613]); plot(T,AliveH,'-x') plot(T,AliveH,'-x',T_L,AliveH_L,'-x'); xlabel('Time (s)'); ylabel('No of live Sensors nodes') title('Life time of sensor nodes') legend('HEED','LEACH') figure('Position',[511 61 792 613]); plot(T,BitsH,'-x') plot(T,BitsH,'-x',T_L,BitsH_L,'-x'); xlabel('Time (s)'); ylabel('Throughput (no of packets)') title(['Throughput (' num2str(N) ' Sensor nodes)']) legend('HEED','LEACH')