Broadcasting is a common and basic operation used to support various network protocols in wireless networks. To achieve energy-efficient broadcasting is especially important for ad hoc wireless sensor networks because sensors are generally powered by batteries with limited lifetimes. Energy consumption for broadcast operations can be reduced by minimizing the number of relay nodes based on the observation that data transmission processes consume more energy than data reception processes in the sensor nodes, and how to improve the network lifeti ....etc

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The instruction is valid for Matlab version R2007b

First dowload and save grTheory toolobox (save it in Tools): http://mathworksmatlabcentral/fileexchange/4266. Open the Matlab and go to the File/Set Path and click on the Add Folder. Insert the path to your grTheory toolbox.

Next create working folder and store there all files prepared at the bottom of this webpage (networksDB.mat, loadAndPrintNet.m, oneRoundWSN.m).

The networkDb.mat file that contains the database of the WSN networks in the form of Matlab matrixes with the node's X,Y coordi ....etc

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Message Integrity and Message Authentication


MESSAGE INTEGRITY

The cryptography systems that we have studied so far provide secrecy, or confidentiality, but not integrity. However, there are occasions where we may not even need secrecy but instead must have integrity.

Topics discussed in this section

11.1 Document and Fingerprint
11.2 Message and Message Digest
11.3 Difference
11.4 Checking Integrity
11.5 Cryptographic Hash Function Criteria

Document and Fingerprint[/b ....etc

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dfdsfssfsf f fsekjfbef efbewf fjf sfj wbf eojf w fwo fwefwjf ewf wjf ej fwf jf ewf ejfbejof fbweof eof wof efof wof wof woef wf ewof of w fweof
nokf onfof fof fof wf f fofe fw fw f ff flf ....etc

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Hi am aishwarya i would like to get details on code to broadcast message in ns2 .i am living at noida and i am persuing m.tech from indraprasth univercity delhi..i need help on broadcasting

i am willing to do my m.tech project in flooding reduction topic.
please provide me with the code of pure flooding, and if possible i wish to to have the code of the algorithm and technique used in Hai Liu, Xiaohua Jia, Senior Member, IEE, Peng-Jun Wan, Xinxin Liu, and Frances F. Yao A Distributed and Efficient Flooding Scheme Using 1-Hop Information ....etc

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i want to download the code for different broadcasting algorithms in VANET. there are lot of broadcasting algorithms are available for both vanet and manet like simple flooding, probabilistic flooding, counter based flooding, distance based , position based and neighbor knowledge based flooding. ....etc

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Abstract

This paper proposes a routing protocol for the applications of Wireless Sensor Network (WSN). It is a protocol based on the PEGASIS protocol but using an improved ant colony algorithm rather than the greedy algorithm to construct the chain. Compared with the original PEGASIS, this one, PEG-ant, can achieve a global optimization. It forms a chain that makes the path more even-distributed and the total square of transmission distance much less. Moreover, in the constructing process, the energy factor has been taken into account, which b ....etc

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Abstract

This paper exploits sink mobility to prolong the network lifetime in wireless sensor networks where the information delay caused by moving the sink should be bounded. Due to the combinational complexity of this problem, most previous proposals focus on heuristics and provable optimal algorithms remain unknown. In this paper, we build a unified framework for analyzing this joint sink mobility, routing, delay, and so on. We discuss the induced subproblems and present efficient solutions for them. Then, we generalize these solutions and ....etc

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ns2 source code for safety message broadcast protocol in vanet

Abstract

Most safety-related applications targeting at Vehicular Ad-hoc Networks (VANETs) use Vehicle-to-Vehicle (V2V) broadcast method to disseminate safety-related information to all surrounding vehicles. However, the conventional broadcast schemes have the broadcast storm problem which can lead to unbearable transmission delay and packet loss. In this paper, we present an efficient broadcast scheme referred as Vehicular Multi-hop broadcasting Protocol (VMP) for fast disseminati ....etc

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matlab code for simulate energy consumption in wsn

The instruction is valid for Matlab version R2007b

First dowload and save grTheory toolobox (save it in Tools): http://mathworksmatlabcentral/fileexchange/4266. Open the Matlab and go to the File/Set Path and click on the Add Folder. Insert the path to your grTheory toolbox.

Next create working folder and store there all files prepared at the bottom of this webpage (networksDB.mat, loadAndPrintNet.m, oneRoundWSN.m).

The networkDb.mat file that contains the database of the WSN networks in th ....etc

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