Sample Coding in Wireless

Here Guys this is an sample tcl coding

# Define options
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(ifq) Queue/DropTail/PriQueue ;# interface queue type
set val(ll) LL ;# page link layer type
set val(ant) Antenna/OmniAntenna ;# antenna model
set val(ifqlen) 50 ;# max packet in ifq
set val(nn) 50 ;# number of mobilenodes
set val( ....etc

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set topo
$topo load_flatgrid 16800 7500

I want explanation for this coding pls. ....etc

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Scheduling Sleeping Nodes in High Density Cluster based Sensor Nodes (VC++)
ACM Transactions on Mobile Networks and Applications, Volume 10,

Abstract: In order to conserve battery power in very dense sensor networks, some sensor nodes may be put into the sleep state while other sensor nodes remain active for the sensing and communication tasks. In this paper, we study the node sleep scheduling problem in the context of clustered sensor networks. We propose and analyze the Linear Distance-based Scheduling (LDS) technique for sleeping in eac ....etc

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how to set sleep and wakeup for nodes in ns2 in aodv

public:
AODV();
void CLUSTERING();
..
AODV.cc :
void AODV::CLUSTERING(){
if(current_){
while(numberofNodes){
// Selecting clusters
}
}
}
Now we know how the mechanism of ns2 works.so let's get started with sleep nodes.
First of all there is 4 functions in ns2 for turning a node to 'off', 'on', 'sleep', 'idle'. The difference between these are not so big.
As you know the 'off' function turns a node to off but it still broadcasts something based on your protocol.
$ns_ at 7.0 $ ....etc

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Write a C Program to declare an array for 2 0 floats. Accept the values from the user sort the two arrays in descending order. Merge the two arrays into a new array and display the new array.
/* Build your program around this.. */
main()
{
int a, b, c;
float t;

/*declare an array for 2 0 floats*/
float aList1;
float aList2;
float aList;

/* Accept the values from the user */
/* 1 */
for (c=0; c++;c <20)
scanf(%f, alist1+c);
/* 2 */
for (c=0; c++;c <20)
scanf(%f, alist2+c);

/* sort the two a ....etc

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i'm doing m.cs final year project .so will u please help me to get the coding or algorithm for eliminating malicious node using trust based evaluation ....etc

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Financial Strategies Creating Values in Global Era

INTRODUCTION :

In this current throat-cut environment where nothing is constant but everything is possible and flexible. It is very tough task to formulate strategy. The term strategy is generally used for future planning and working of the organization in corporate panorama, especially financial strategies are playing very important role and Pricing strategies are major decisions under the financial strategies. Generally, in this competitive environment firms / Comp ....etc

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trust_entry::trust_entry()
{
//Initialize as per your need.
}
trust_entry:: trust_entry()
{
//Deconstruct as per your need.
}

trust_entry* trust_store::trust_lookup(nsaddr_t node_id)
{
trust_entry *rp = trusthead.lh_first;
for (; rp; rp = rp->trust_link.le_next) {
if (rp->node_id == node_id)
break;
}
return rp;
}
void trust_store::trust_delete(nsaddr_t node_id)
{
trust_entry *rp = trust_lookup(node_id);

if (rp)
{
LIST_REMOVE(rp, trust_link);
delete rp;
}

}

trust_entry*
trust_store:: ....etc

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sample code for creation of wireless nodes in ns2

Abstract

A wireless sensor network (WSN) consists of a large number of small sensor nodes that are deployed in the area in which a factor is to be monitored. In wireless sensor network, energy model is one of the optional attributes of a node. The energy model denotes the level of energy in a mobile node. The components required for designing energy model includes initialEnergy, txPower, rxPower, and idlePower. The initialEnergy represents the level of energy the node has at the initial stag ....etc

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Hi,
source code to create malicious node in ns2 using tcl. ....etc

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