资源简介
采用leach算法,实现无线传感网络中的能量控制
代码片段和文件信息
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% SEP: A Stable Election Protocol for clustered %
% heterogeneous wireless sensor networks %
% %
% (c) Georgios Smaragdakis %
% WING group Computer Science Department Boston University %
% %
% You can find full documentation and related information at: %
% http://csr.bu.edu/sep %
% %
% To report your comment or any bug please send e-mail to: %
% gsmaragd@cs.bu.edu %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% This is the LEACH [1] code we have used. %
% The same code can be used for FAIR if m=1 %
% %
% [1] W.R.Heinzelman A.P.Chandrakasan and H.Balakrishnan %
% “An application-specific protocol architecture for wireless %
% microsensor networks“ %
% IEEE Transactions on Wireless Communications 1(4):660-6702002 %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clear;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PARAMETERS %%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Field Dimensions - x and y maximum (in meters)
xm = 200;
ym = 200;
%x and y Coordinates of the Sink
sink.x =0.5 * xm;
sink.y = ym + 50;
%Number of Nodes in the field
n = 200
%Optimal Election Probability of a node
%to become cluster head
p=0.05;
packetLength = 4000;%数据包长度
ctrPacketLength = 100;%控制包长度
%Energy Model (all values in Joules)
%Initial Energy
Eo = 0.5;
%Eelec=Etx=Erx
ETX=50*0.000000001;
ERX=50*0.000000001;
%Transmit Amplifier types
Efs=10*0.000000000001;
Emp=0.0013*0.000000000001;
%Data Aggregation Energy
EDA=5*0.000000001;
%Values for Hetereogeneity
%Percentage of nodes than are advanced
m=1;
%\alpha
a=1;
INFINITY = 999999999999999;
%maximum number of rounds
rmax=2000
%%%%%%%%%%%%%%%%%%%%%%%%% END OF PARAMETERS %%%%%%%%%%%%%%%%%%%%%%%%
%Computation of do
do=sqrt(Efs/Emp);
%Creation of the random Sensor Network
figure(1);
for i=1:1:n
S(i).xd=rand(11)*xm;%坐标
XR(i)=S(i).xd;
S(i).yd=rand(11)*y
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