PRIVACY-PRESERVING FRAMEWORK FOR SECURE ENCOUNTER-BASED SOCIAL NETWORKS

                    

   ABSTRACT

                        In social networks and encounter-based systems, link users share a location at the same time,and may connect with users who have an offline friendship.Our new technique supports challenges that are basically different from those undertaken by previous social network designs.Functional and security requirements for these new systems are availability, security, and privacy, and present several design options for building secure social networks. Proposed system provide several security guarantees, including privacy in the form of unlinkability of users sharing an encounter, confidentiality of data exchanged among encounter participants, and authentication of both users in a two-party conversation. The work provided better results when compared with the existing approach.

DOMAIN :SECURE COMPUTING

CONTACT DETAILS

Phn : 7200555526

e-mail : info.nanosoftwares@gmail.com

http://www.nanosoftwares.com/

EFFICIENT GROUP COMMUNICATION IN LOCATION AWARE MOBILE AD HOC NETWORKS

• The highly dynamic and uncertain character of mobile ad-hoc networks poses significant challenges for group management. 
• Node mobility often changes the multicast tree, and therefore, frequent updates from group members are required to refresh the multicast tree at the source node. 
• This paper presents Courier, a group communications algorithm that uses the location and velocity of roaming nodes to provide bandwidth efficient multicast between a source and its destinations (i.e., group members) in location aware mobile environments. 
• Toward that end, Courier offers (1) a bandwidth efficient method for location updates from group members, (2) a mobility prediction model for predicting the movement of mobile group members, and (3) an overlay multicast data distribution tree (OMDDT) construction algorithm that is guided by the mobility prediction model. 
• Comparisons of Courier to related multicast algorithms indicate an increase in data transmission success and a decrease in overall bandwidth consumption.

DOMAIN : MOBILE COMPUTING

CONTACT INFORMATION 
 http://www.nanosoftwares.com/

Ph.no : 7200555526

e-mail : info.nanosoftwares@gmail.com

Add caption

FREQUENT POSITION UPDATE-EXCLUSIVE ANALYSIS FOR MOBILE AD HOC NETWORK USING TIME BASED BEACONS

• An increasing number of ad hoc networking protocols and location-aware services involve learning the mobile nodes’ location of their neighbors. 
• To preserve neighbor positions, nearly all geographic routing protocols exploit a well-liked method of periodic broadcasting of beacon packets that enclose the geographic location coordinates of the nodes. 
• From both the update cost and routing performance points of analysis, despite of the node mobility and traffic patterns in the network, we challenge and reveal that periodic beaconing is not smart. 
• Frequent Position Update-Exclusive Analysis (FPU-EA) strategy which vigorously amends the frequency of position updates based on the mobility dynamics of the nodes and the forwarding models in the network is intended in this work for geographic routing. 
• FPU-EA is based on two straightforward update principles: 1) nodes whose movements are tougher to guess update their locations more often (and vice versa), and (ii) nodes which are nearer to forwarding paths update their locations more often (and vice versa). 
• 
  DOMAIN : MOBILE COMPUTING
•  
  
  CONTACT INFORMATION
   Nano softwares
  Ph.no : 7200555526
  e-mail : info.nanosoftwares@gmail.com
  

Content-Based Microscopic Image Retrieval System for Multi-Image Queries

Content-Based Microscopic Image Retrieval System for Multi-Image Queries

Abstract:-

In this paper, we describe the design and development of a multitiered content-based image retrieval (CBIR) system for microscopic images utilizing a reference database that contains images of more than one disease. The proposed CBIR system uses a multitiered approach to classify and retrieve microscopic images involving their specific subtypes, which are mostly difficult to discriminate and classify. This system enables both multi-image query and slide-level image retrieval in order to protect the semantic consistency among the retrieved images. New weighting terms, inspired from information retrieval theory, are defined for multiple-image query and retrieval. The performance of the system was tested on a dataset including 1666 imaged high power fields extracted from 57 follicular lymphoma (FL) tissue slides with three subtypes and 44 neuroblastoma (NB) tissue slides with four subtypes. Each slide is semantically annotated according to their subtypes by expert pathologists. By using leave-one-slide out testing scheme, the multi-image query algorithm with the proposed weighting strategy achieves about 93% and 86% of average classification accuracy at the first rank retrieval, outperforming the image-level retrieval accuracy by about 38 and 26 percentage points, for FL and NB diseases, respectively.

Language : Matlab

Domain   : Image Processing

Contact  : 04652 - 402011

Price      :12,000/-

Email ID : Contact@nanosoftwares.com

Leakage Current Reduction in a Single-Phase Bidirectional AC–DC Full-Bridge Inverter

Leakage Current Reduction in a Single-Phase Bidirectional AC–DC Full-Bridge Inverter

Abstract:-

The leakage current in grid-interface converter systems presents a considerable issue in regard to safety and efficiency. The full-bridge inverter is a well-accepted topology in single-phase power conversion applications. The high-frequency pulse width modulation (PWM) modulation schemes are normally applied to the full-bridge topology for smaller ac filter size, which, however, generates a high-frequency dc-side leakage current, resulting in an enormous negative impact on dc components, such as photovoltaic panels and energy storage elements. In this paper, a modified full-bridge inverter topology to reduce the dc-side leakage current as well as to mitigate the ac-side common-mode electromagnetic interference noise is presented. Several considerations are discussed, such as the PWM modulation and filter design. Compared to the other existing methods, the proposed solution provides a reliable performance for bidirectional operation,minimum
additional components, low cost, and a simple design process.

Language : Matlab
Domain    : Power electronics converted 
Contact    : 04652 - 402011
Price        :  12,000/-
E-mail.ID : Contact@nanosoftwares.com

Congestion Aware Media Independent Handover

Abstract:-

congestion aware media independent handover

Language : Matlab

 Domain  : Wireless sensor 

FireCol: A Collaborative Protection Network for the Detection of Flooding DDoS Attacks

Distributed denial-of-service (DDoS) attacks remain a major security problem, the mitigation of which is very hard especially when it comes to highly distributed botnet-based attacks. The early discovery of these attacks, although challenging, is necessary to protect end-users as well as the expensive network infra-structure resources. In this paper, we address the problem of DDoS attacks and present the theoretical foundation, architecture, and algorithms of FireCol. The core of FireCol is composed of intrusion prevention systems (IPSs) locatedat the Internet service providers (ISPs) level. The IPSs form virtual protection rings around the hosts to defend and collaborate by exchanging selected trafficin-formation. The evaluation ofFireColusing extensive simulations and a real dataset is presented, showingFireColeffectiveness and low overhead, as well as its support for incremental deployment in real networks

Language : JAVA
Domain   :  Network Security
Contact  : 04652 -402011
Price    : 12,000/-
Email    : contact@nanosoftwares.com