基本的DV-HOP仿真程序.docx
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基本的DV-HOP仿真程序.docx
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%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~DV-HopËã·¨~~~~~~~~~~~~~~~~~~~~~~~~
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
%BorderLength-----Õý·½ÐÎÇøÓòµÄ±ß³¤£¬µ¥Î»£ºm
%NodeAmount-------ÍøÂç½ÚµãµÄ¸öÊý
%BeaconAmount---Ðűê½ÚµãÊý
%Sxy--------------ÓÃÓÚ´æ´¢½ÚµãµÄÐòºÅ£¬ºá×ø±ê£¬×Ý×ø±êµÄ¾ØÕó
%Beacon----------Ðűê½Úµã×ø±ê¾ØÕó;BeaconAmount*BeaconAmount
%UN-------------δ֪½Úµã×ø±ê¾ØÕó;2*UNAmount
%Distance------δ֪½Úµãµ½Ðűê½Úµã¾àÀë¾ØÕó;2*BeaconAmount
%h---------------½Úµã¼ä³õʼÌøÊý¾ØÕó
%X---------------½Úµã¹À¼Æ×ø±ê³õʼ¾ØÕó,X=[x,y]'
%R------------------½ÚµãµÄͨОàÀ룬һ°ãΪ10-100m
clear,closeall;
BorderLength=100;
NodeAmount=100;
BeaconAmount=20;
UNAmount=NodeAmount-BeaconAmount;
R=30;
%D=zeros(NodeAmount,NodeAmount);%δ֪½Úµçµ½Ðűê½Úµã¾àÀë³õʼ¾ØÕó£»BeaconAmountÐÐNodeAmountÁÐ
h=zeros(NodeAmount,NodeAmount);%³õʼÌøÊýΪ0£»BeaconAmountÐÐNodeAmountÁÐ
X=zeros(2,UNAmount);%½Úµã¹À¼Æ×ø±ê³õʼ¾ØÕó
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ÔÚÕý·½ÐÎÇøÓòÄÚ²úÉú¾ùÔÈ·Ö²¼µÄËæ»úÍØÆË~~~~~~~~~~~~~~~~~~~~
C=BorderLength.*rand(2,NodeAmount);
%´øÂß¼ºÅµÄ½Úµã×ø±ê
Sxy=[[1:
NodeAmount];C];
Beacon=[Sxy(2,1:
BeaconAmount);Sxy(3,1:
BeaconAmount)];%Ðűê½Úµã×ø±ê
UN=[Sxy(2,(BeaconAmount+1):
NodeAmount);Sxy(3,(BeaconAmount+1):
NodeAmount)];%δ֪½Úµã×ø±ê
%»³ö½Úµã·Ö²¼Í¼
plot(Sxy(2,1:
BeaconAmount),Sxy(3,1:
BeaconAmount),'kp',Sxy(2,(BeaconAmount+1):
NodeAmount),Sxy(3,(BeaconAmount+1):
NodeAmount),'ko')
xlim([0,BorderLength]);
ylim([0,BorderLength]);
title('Îå½ÇÐDZíʾÐűê½Úµã.ԲȦ±íʾδ֪½Úµã')
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~³õʼ»¯½Úµã¼ä¾àÀë¡¢ÌøÊý¾ØÕó~~~~~~~~~~~~~~~~~~~~~~
fori=1:
NodeAmount
forj=1:
NodeAmount
Dall(i,j)=((Sxy(2,i)-Sxy(2,j))^2+(Sxy(3,i)-Sxy(3,j))^2)^0.5;%ËùÓнڵã¼äÏ໥¾àÀë
if(Dall(i,j)<=R)&(Dall(i,j)>0)
h(i,j)=1;%³õʼÌøÊý¾ØÕó
elseifi==j
h(i,j)=0;
elseh(i,j)=inf;
end
end
end
%~~~~~~~~~~~~~~~~~~~~~~~~~×î¶Ì·¾Ëã·¨¼ÆËã½Úµã¼äÌøÊý~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fork=1:
NodeAmount
fori=1:
NodeAmount
forj=1:
NodeAmount
ifh(i,k)+h(k,j) h(i,j)=h(i,k)+h(k,j); end end end end h %~~~~~~~~~~~~~~~~~~~~~~~~~Çóÿ¸öÐűê½ÚµãµÄУÕýÖµ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ h1=h(1: BeaconAmount,1: BeaconAmount); D1=Dall(1: BeaconAmount,1: BeaconAmount); fori=1: BeaconAmount dhop(i,1)=sum(D1(i,: ))/sum(h1(i,: ));%ÿ¸öÐűê½ÚµãµÄƽ¾ùÿÌø¾àÀë end D2=Dall(1: BeaconAmount,(BeaconAmount+1): NodeAmount);%BeaconAmountÐÐUNAmountÁÐ fori=1: BeaconAmount forj=1: UNAmount ifmin(D2(: j))==D2(i,j) Dhop(1,j)=D2(i,j);%δ֪½Úµã´Ó×î½üµÄÐűê»ñµÃУÕýÖµ end end end Dhop %~~~~~~~~~~~~~~~~~~~~~~~~~~~ÓÃÌøÊý¹À¼Æ¾àÀë~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ hop1=h(1: BeaconAmount,(BeaconAmount+1): NodeAmount)%δ֪½Úµãµ½ÐűêÌøÊý£¬BeaconAmountÐÐUNAmountÁÐ fori=1: UNAmount hop=Dhop(1,i);%hopΪ´Ó×î½üÐűê»ñµÃµÄУÕýÖµ Distance(: i)=hop*hop1(: i);%%BeaconÐÐUNÁУ» end %%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~×îС¶þ³Ë·%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~DV-Hop算法~~~~~~~~~~~~~~~~~~~~~~~~ %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ %BorderLength-----正方形区域的边长,单位: m %NodeAmount-------网络节点的个数 %BeaconAmount---信标节点数 %Sxy--------------用于存储节点的序号,横坐标,纵坐标的矩阵 %Beacon----------信标节点坐标矩阵;BeaconAmount*BeaconAmount %UN-------------未知节点坐标矩阵;2*UNAmount %Distance------未知节点到信标节点距离矩阵;2*BeaconAmount %h---------------节点间初始跳数矩阵 %X---------------节点估计坐标初始矩阵,X=[x,y]' %R------------------节点的通信距离,一般为10-100m clear,closeall; BorderLength=100; NodeAmount=100; BeaconAmount=20; UNAmount=NodeAmount-BeaconAmount; R=30; %D=zeros(NodeAmount,NodeAmount);%未知节电到信标节点距离初始矩阵;BeaconAmount行NodeAmount列 h=zeros(NodeAmount,NodeAmount);%初始跳数为0;BeaconAmount行NodeAmount列 X=zeros(2,UNAmount);%节点估计坐标初始矩阵 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~在正方形区域内产生均匀分布的随机拓扑~~~~~~~~~~~~~~~~~~~~ C=BorderLength.*rand(2,NodeAmount); %带逻辑号的节点坐标 Sxy=[[1: NodeAmount];C]; Beacon=[Sxy(2,1: BeaconAmount);Sxy(3,1: BeaconAmount)];%信标节点坐标 UN=[Sxy(2,(BeaconAmount+1): NodeAmount);Sxy(3,(BeaconAmount+1): NodeAmount)];%未知节点坐标 %画出节点分布图 plot(Sxy(2,1: BeaconAmount),Sxy(3,1: BeaconAmount),'kp',Sxy(2,(BeaconAmount+1): NodeAmount),Sxy(3,(BeaconAmount+1): NodeAmount),'ko') xlim([0,BorderLength]); ylim([0,BorderLength]); title('五角星表示信标节点.圆圈表示未知节点') %~~~~~~~~~~~~~~~~~~~~~~~~~~~~初始化节点间距离、跳数矩阵~~~~~~~~~~~~~~~~~~~~~~ fori=1: NodeAmount forj=1: NodeAmount Dall(i,j)=((Sxy(2,i)-Sxy(2,j))^2+(Sxy(3,i)-Sxy(3,j))^2)^0.5;%所有节点间相互距离 if(Dall(i,j)<=R)&(Dall(i,j)>0) h(i,j)=1;%初始跳数矩阵 elseifi==j h(i,j)=0; elseh(i,j)=inf; end end end %~~~~~~~~~~~~~~~~~~~~~~~~~最短路经算法计算节点间跳数~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fork=1: NodeAmount fori=1: NodeAmount forj=1: NodeAmount ifh(i,k)+h(k,j) h
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- 基本 DV HOP 仿真 程序