资源简介
LEACH协议 全称是“低功耗自适应集簇分层型协议” Low Energy Adaptive Clustering Hierarchy 是一种无线传感器网络路由协议 基于LEACH协议的算法 称为LEACH算法
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=100;
ym=100;
%x and y Coordinates of the Sink
sink.x=0.5*xm;
sink.y=0.5*ym;
%Number of Nodes in the field
n=100
%Optimal Election Probability of a node
%to become cluster head
p=0.1;
%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=0.1;
%\alpha
a=1;
%maximum number of rounds
rmax=9999
%%%%%%%%%%%%%%%%%%%%%%%%% 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;
XR(i)=S(i).xd;
S(i).yd=rand(11)*ym;
YR(i)=S(i).yd;
S(i).G=0;
%initially there are no cluster heads only nodes
S(i).type=‘N‘;
temp_rnd0=i;
%Random Election of Normal Nodes
if (te
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