Java evaluating temporal robustness of mobile networks

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We present a measure of temporal network robustness to evaluate how mobile networks withstand structural damage over time. The study introduces a way to define robustness for time-varying networks and applies it to random models and a real-world dataset of 500 taxicabs. The results show that considering the temporal aspect provides a more accurate picture of a mobile network's performance compared to static analysis, which can overestimate the robustness of fragile, time-varying networks.

EVALUATING TEMPORAL ROBUSTNESS OF MOBILE NETWORKS
ABSTRACT:
The application of complex network models to communication systems has led to several
important results: nonetheless, previous research has often neglected to take into account their
temporal properties, which in many real scenarios play a pivotal role. At the same time, network
robustness has come extensively under scrutiny. Understanding whether networked systems can
undergo structural damage and yet perform efficiently is crucial to both their protection against
failures and to the design of new applications. In spite of this, it is still unclear what type of
resilience we may expect in a network which continuously changes over time.
We present the first attempt to define the concept of temporal network robustness: we describe a
measure of network robustness for time-varying networks and we show how it performs on
different classes of random models by means of analytical and numerical evaluation. Finally, we
report a case study on a real-world scenario, an opportunistic vehicular system of about 500
taxicabs, highlighting the importance of time in the evaluation of robustness. Particularly, we
show how static approximation can wrongly indicate high robustness of fragile networks when
adopted in mobile time-varying networks, while a temporal approach captures more accurately
the system performance.
ECWAY TECHNOLOGIES
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The document discusses the development of a "smart home test bed" project for undergraduate education to help bridge the gap between traditional power systems education and modern smart grids. The project is intended to give students hands-on experience with key smart grid topics like demand response, real-time pricing, wireless sensor networks, machine learning, and more. It aims to provide a single design project that combines classic power systems knowledge with communication, computing, and control skills needed for smart grids.

Defeating jamming with the power of silence a gametheoretic analysis

ranjith kumar

Dear Student, DREAMWEB TECHNO SOLUTIONS is one of the Hardware Training and Software Development centre available in Trichy. Pioneer in corporate training, DREAMWEB TECHNO SOLUTIONS provides training in all software development and IT-related courses, such as Embedded Systems, VLSI, MATLAB, JAVA, J2EE, CIVIL, Power Electronics, and Power Systems. It’s certified and experienced faculty members have the competence to train students, provide consultancy to organizations, and develop strategic solutions for clients by integrating existing and emerging technologies. ADD: No:73/5, 3rd Floor, Sri Kamatchi Complex, Opp City Hospital, Salai Road, Trichy-18 Contact @ 7200021403/04 phone: 0431-4050403

On availability performability tradeoff in wireless mesh networks

ieeeprojectschennai

On availability performability tradeoff in wireless mesh networks +91-9994232214,8144199666, ieeeprojectchennai@gmail.com, www.projectsieee.com, www.ieee-projects-chennai.com IEEE PROJECTS 2015-2016 ----------------------------------- Contact:+91-9994232214,+91-8144199666 Email:ieeeprojectchennai@gmail.com Support: ------------- Projects Code Documentation PPT Projects Video File Projects Explanation Teamviewer Support

IEEE Networking 2016 Title and Abstract

tsysglobalsolutions

Dynamic Topology Re-Configuration in Multihop Cellular Networks Using Sequent...

IJERA Editor

Cellular communications has experienced explosive growth in the past two decades. Today millions of people around the world use cellular phones. Cellular phones allow a person to make or receive a call from almost anywhere. Likewise, a person is allowed to continue the phone conversation while on the move. Cellular communications is supported by an infrastructure called a cellular network, which integrates cellular phones into the public switched telephone network. The cellular network has gone through three generations.The first generation of cellular networks is analog in nature. To accommodate more cellular phone subscribers, digital TDMA (time division multiple access) and CDMA (code division multiple access) technologies are used in the second generation (2G) to increase the network capacity. With digital technologies, digitized voice can be coded and encrypted. Therefore, the 2G cellular network is also more secure. The third generation (3G) integrates cellular phones into the Internet world by providing highspeed packet-switching data transmission in addition to circuit-switching voice transmission. The 3G cellular networks have been deployed in some parts of Asia, Europe, and the United States since 2002 and will be widely deployed in the coming years. The high increase in traffic and data rate for future generations of mobile communication systems, with simultaneous requirement for reduced power consumption, makes Multihop Cellular Networks (MCNs) an attractive technology. To exploit the potentials of MCNs a new network paradigm is proposed in this paper. In addition, a novel sequential genetic algorithm (SGA) is proposed as a heuristic approximation to reconfigure the optimum relaying topology as the network traffic changes. Network coding is used to combine the uplink and downlink transmissions, and incorporate it into the optimum bidirectional relaying with ICI awareness. Numerical results have shown that the algorithms suggested in this thesis provide significant improvement with respect to the existing results, and are expected to have significant impact in the analysis and design of future cellular networks.

Ns2 2015 2016 ieee project list-(v)_with abstract(S3 Infotech:9884848198)

S3 Infotech IEEE Projects

S3 INFOTECH +91 988 48 48 198 # 10/1, Jones Road, Saidapet, Chennai – 15. Ph: 044-3201 7467, 9884848198. www.s3computers.com E-Mail: info@s3computers.com The document lists 10 project titles from IEEE 2015 related to wireless networks and security. The projects address topics such as detecting malicious nodes in mobile ad hoc networks, enhancing security and caching in MANETs, providing multicast connectivity in flexgrid optical networks, and optimizing resource allocation and base station selection in heterogeneous networks.

Wireless Sensor Networks have come to the forefront of the scientific community recently and it consists of small nodes with sensing, Communications and computing capabilities. The Wireless Sensor Network Systems can be applied to monitor different environments ranging from military to civil applications. It is observed that different protocols necessary for smooth functioning of the network system are highly application specific. Current WSNs typically communicate directly with a centralized controller or satellite. In this paper we survey the different research challenges in Wireless Sensor Networks and purpose of various research Challenges activities is the development of a framework, which is radically simplifies the development of software for sensor network applications and characteristic Features of Sensor Networks.

Power system and communication network co simulation for smart grid applications

Indra S Wahyudi

This paper proposes a power system and communication network co-simulation framework that integrates a power system dynamics simulator (PSLF) and a network simulator (NS2). The framework uses a global scheduler to run the simulation in a discrete event-driven manner, eliminating errors from separate synchronization of the simulators. As a case study, an agent-based remote backup relay system is simulated using this co-simulation framework to demonstrate its effectiveness in evaluating smart grid applications involving interactions between power and communication systems.

Strategies and Metric for Resilience in Computer Networks

dmarinojr

The document discusses strategies and metrics for resilience in computer networks. It proposes a resilience factor to measure a network's ability to withstand targeted attacks. It also proposes two strategies, called PropAdd and PropRew, to improve network resilience by preferentially adding links or rewiring existing links based on centrality metrics. Experimental results on real network topologies confirm the effectiveness of the proposed approach.

Power Aware Cluster to Minimize Load In Mobile Ad Hoc Networks

IJRES Journal

Mobile ad hoc networks (MANETs) are popularly known to their mobility and ease of usage. These networks are a set of identical nodes that move freely to communicate among networks and they are represented as a set of clusters. However, their wireless and active natures cause them to be more susceptible to various types of security attacks and transmission energy consumption so that they drop out of the network easily. Now-a-days the major challenge of MANETS is to endow with the assurance to the secure network services and also to provide a nearby balance of load for the cluster-heads. To meet this confront, certificate revocation with load balancing is an important central component to provide security and energy conservation in the network communications. In this paper, we focus on load balancing clustering to widen the lifetime of the cluster-head for a maximum time before allowing it to withdraw so as to distribute the responsibility to other legitimate nodes in the cluster to act as a cluster-head along with the issue of certificate revocation process. For quick, accurate, secure certificate revocation and to conserve energy, we propose the CCRV with Load Balancing Clustering scheme where we can reduce the burden of the cluster along with secure certificate revocation. In particular, to minimize the transmission energy consumption, we use the master slave model to operate the network with longer lifetime and we propose load balancing mechanism to enhance the lifetime of the cluster-head.

A SURVEY ON AUTHENTICATION AND KEY AGREEMENT PROTOCOLS IN HETEROGENEOUS NETWORKS

IJNSA Journal

Unlike current closed systems such as 2nd and 3rd generations where the core network is controlled by a sole network operator, multiple network operators will coexist and manage the core network in Next Generation Networks (NGNs). This open architecture and the collaboration between different network operators will support ubiquitous connectivity and thus enhances users’ experience. However, this brings to the fore certain security issues which must be addressed, the most important of which is the initial Authentication and Key Agreement (AKA) to identify and authorize mobile nodes on these various networks. This paper looks at how existing research efforts the HOKEY WG, Mobile Ethernet and 3GPP frameworks respond to this new environment and provide security mechanisms. The analysis shows that most of the research had realized the openness of the core network and tried to deal with it using different methods. These methods will be extensively analysed in order to highlight their strengths and weaknesses.

Optimizing On Demand Weight -Based Clustering Using Trust Model for Mobile Ad...

ijasuc

Mobile ad hoc networks are growing in popularity due to the explosive growth of modern devices with wireless capability such as laptop, mobile phones, PDA, etc., makes the application more challenging. The mobile nodes are vulnerable to security attacks. To protect the ad hoc network it is essential to evaluate the trust worthiness. The proposed TWCA is similar to WCA in terms of cluster formation and cluster head election. However, in WCA security features are not included. The proposed TWCA is a cluster based trust evaluation, in which the mobile nodes are grouped into clusters with one cluster head. It establishes trust relationship for the cluster based on the previous transaction result. The simulation result confirms the efficiency of our scheme than the WCA and SEMC.

IEEE BE-BTECH NS2 PROJECT@ DREAMWEB TECHNO SOLUTION

ranjith kumar

An Adaptive Cluster Head Election Algorithm for Heterogeneous Mobile Ad-hoc N...

IJLT EMAS

This document proposes an adaptive cluster head election algorithm for heterogeneous mobile ad-hoc networks. It begins by discussing how mobile ad-hoc networks can be homogeneous or heterogeneous based on node capabilities. The effects of heterogeneity, including issues with coverage area, link stability and lifetime, are analyzed. An algorithm is then suggested that considers node mobility, power and transmission range to adaptively elect cluster heads in heterogeneous networks. The proposed algorithm is simulated and evaluated based on parameters like cluster formation overhead and cluster lifetime under different transmission ranges. The results show the algorithm can help ensure stable cluster formations and address issues caused by node heterogeneity in mobile ad-hoc networks.

A Survey on the Common Network Traffic Sources Models

CSCJournals

Selecting the appropriate traffic model can lead to the successful design of networks. The more accurate is the traffic model the better is the system quantified in terms of its performance Successful design lead to enhancement the overall performance of the whole of network .in literature there is innumerous traffic models proposed for understanding and analyzing the traffic characteristics of networks. Consequently, the study of traffic models to understand the features of the models and identify eventually the best traffic model, for a concerned environment has become a crucial and lucrative task. Good traffic modeling is also a basic requirement for accurate capacity planning. This paper provides an overview of some of the widely used network traffic models, highlighting the core features of the model and traffic characteristics they capture best. Finally we found that the N_BURST traffic model can capture the traffic characteristics of most types of networks, under every possible circumstance rather than any type of traffic model.

IEEE 2015 NS2 Projects

Vijay Karan

ADHOCFTSIM: A Simulator of Fault Tolerence In the AD-HOC Networks

ijwmn

The flexibility and diversity of Wireless Mobile Networks offer many opportunities that are not always taken into account by existing distributed systems. In particular, the proliferation of mobile users and the use of mobile Ad-Hoc promote the formation of collaborative groups to share resources. We propose a solution for the management of fault tolerance in the Ad-Hoc networks, combining the functions needed to better availability of data. Our contribution takes into account the characteristics of mobile terminals in order to reduce the consumption of resources critical that energy, and to minimize the loss of information. Our solution is based on the formation of clusters, where each is managed by a node leader. This solution is mainly composed of four sub-services, namely: prediction, replication, management of nodes in the cluster and supervision. We have shown, using several sets of simulation, that our solution is twofold: minimizing the

Improving Network Security in MANETS using IEEACK

ijsrd.com

This document discusses improving network security in mobile ad hoc networks (MANETs) using an improved version of the EAACK intrusion detection system called IEEACK. IEEACK aims to address some of the weaknesses of EAACK related to link breakage, malicious sources, and partial packet dropping. The document describes the components of IEEACK, including ACK, S-ACK, MRA, digital signatures, and a new trust-based quality of service model. Simulation results show that IEEACK can prevent attacks from malicious nodes and improve security performance metrics like packet delivery ratio and detection of malicious nodes.

Statistical dissemination control in large machine to-machine communication n...

Pvrtechnologies Nellore

This paper proposes a two-tier heterogeneous network architecture for large machine-to-machine communication networks to statistically control quality of service. It analyzes the properties of connected machine networks, including degree distribution, diameter and average distance. It then models data transportation using queuing theory to obtain the average end-to-end delay and maximum throughput. The proposed architecture connects machines to data aggregators that form a small-world network to improve end-to-end performance and statistically guarantee tolerable delays without individual link feedback. Simulation results confirm this heterogeneous design effectively controls delays in a statistical manner.

An Intelligent Approach for Handover Decision in Heterogeneous Wireless Envir...

CSCJournals

Vertical handoff is the basic requirement of the convergence of different access technologies. It is also the key characteristic and technology of overlay wireless network with appropriate network interfaces. The integration of diverse but complementary cellular and wireless technologies in the next generation wireless networks requires the design of intelligent vertical handoff decision algorithms to enable mobile users equipped with contemporary multi-interfaced mobile terminals to seamlessly switch network access and experience uninterrupted service continuity anywhere and anytime. Most existing vertical handoff decision strategies are designed to meet individual needs that may not achieve a good system performance. In this paper an intelligent approach is used for vertical handover decision. The intelligence is based on the fuzzy logic approach. So here, fuzzy logic is used for network selection and decision making for vertical handover.

TRUST MANAGEMENT FOR DELAY TOLERANT NETWORK

IAEME Publication

Delay Tolerant Networks (DTNs) have high end-to-end latency, which is often faces disconnection, and unreliable wireless connections. It does not mean a delay service instead DTNs provides a service where network imposes disruption or delay. It operates in challenged networks with extremely limited resources such as memory size, CPU processing power etc. This paper presents an efficient trust managing mechanism for providing secure environment. The proposed dynamic trust management protocol uses a dynamic threshold updating which overcomes the problems with time changing dynamic characteristics by dynamically updating the criteria in response to changing network conditions. This reduces overheads and increases the efficient use of routing network even in conditions change. Also the dynamic threshold update reduces the false detection probability of the malicious nodes. To show the effectiveness of the proposed system, a detailed simulation in the presence of selfish and malicious nodes is performed with ONE simulator. Finally a comparative analysis of our proposed routing with previous routing protocols is also performed. The results demonstrate that presented algorithm deals effectively with selfish behavior with providing significant gain on effective delivery ratio in trade off with message overhead and delay

Ijciet 08 02_002

IAEME Publication

This document summarizes a research paper on trust management for delay tolerant networks. It discusses how delay tolerant networks have high latency, disconnections, and unreliable wireless connections. The paper proposes a dynamic trust management protocol that uses dynamic threshold updating to overcome issues from changing network conditions. This reduces overhead and increases efficient routing. The protocol also aims to reduce false detection of malicious nodes. The effectiveness of the proposed system is evaluated through simulation with selfish and malicious nodes, and it is compared to previous routing protocols. Results show the algorithm can effectively deal with selfish behavior while providing improved delivery ratios with reasonable overhead and delay.

IRJET- Aggregate Signature Scheme and Secured ID for Wireless Sensor Netw...

IRJET Journal

This document proposes a cross-layer resource allocation scheme over wireless relay networks to guarantee quality of service (QoS) in terms of delay. The scheme aims to maximize network throughput subject to a given delay constraint, characterized by a QoS exponent θ. Dynamic resource allocation algorithms are developed for amplify-and-forward and decode-and-forward relay networks based on network channel state information and the QoS constraint. Simulations show the scheme efficiently supports diverse QoS requirements over wireless relay networks, and relay networks outperform direct transmissions under stringent delay constraints.

Statistical dissemination controlIEEE BE-BTECH NS2 PROJECT@ DREAMWEB TECHNO S...

ranjith kumar

IEEE 2015 NS2 Projects

Vijay Karan

International Journal of Engineering Research and Development (IJERD)

IJERD Editor

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Triaxial accelerometer based fall detection method using a self-constructing ...

Java evaluating temporal robustness of mobile networks

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