The Design and Evaluation of An Information Sharing System for Human Networks

The Design and Evaluation of An Information Sharing System for Human Networks

ABSTRACT:

With fast-growing consumer demands and rapidly-developing mobile technologies, portable mobile devices are becoming a necessity of our daily lives. However, existing mobile devices rely on the wireless infrastructure to access Internet services provided by central application providers. This architecture is inefficient in many situations and also does not utilize abundant interdevice communication opportunities in many scenarios. This paper proposes the human network (HUNET), a network architecture that enables information sharing between mobile devices through direct interdevice communication. We design B-SUB, an interest-driven information sharing system for HUNETs. In B-SUB, content and user interests are described by tags, which are human-readable strings that are designated by users. An experiment is performed to demonstrate the effectiveness of this tag-based content description method. To facilitate efficient data dissemination, we invent the Temporal Counting Bloom filter (TCBF) to encode tags, which also reduces the overhead of content routing. Comprehensive theoretical analyses on the parameter tuning of B-SUB are presented and verify B-SUB’s ability to work efficiently under various network conditions. We then extend B-SUB’s routing scheme to provide a stronger privacy guarantee. Extensive real-world trace-driven simulations are performed to evaluate the performance of BSUB, and the results demonstrate its efficiency and usefulness.

EXISTING SYSTEM:

A new architecture of networking portable wireless devices has emerged, which is called the delay tolerant networks . DTNs adopt a “store-carry-and-forward” model, which significantly expands the communication capability of mobile device. Driven by the new application demands and the limitations of the existing architecture, we envision a new type of dynamic networking service called human networks (HUNETs). Physically, a HUNET is composed of human-carried mobile devices, which have the same structure as DTNs. These devices use short-range wireless communication technologies, such as WiFi or BlueTooth, to communicate with each other. Functionally, HUNETs enable information sharing between users in a completely decentralized manner without the aid of an wireless communication infrastructure. A high-level illustration of this architecture is presented . The figure shows a HUNET composed of four users, each of which carries a mobile device. Users share information they are interested in with nearby peers through direct interdevice wireless communication.We present B-SUB, an interest-driven information sharing system for HUNETs, which stands for the bloom-filter-based publish/SUBscribe. B-SUB is designed for small to medium sized networks composed of dozens of devices restricted in a limited physical area where interdevice communication opportunities are abundant.B-SUB employs contentbased networking  to achieve infrastructureless communication. B-SUB is much more efficient than traditional content-based publish/subscribe

DISADVANTAGES OF EXISTING SYSTEM:

1. Mobile devices have weak processors and are powered by batteries. Their computational capability is rather limited.

 2. TCBF has false positives in their queries, which causes useless messages to be forwarded to nodes that are not really interested in their content.

PROPOSED SYSTEM:

v We propose HUNET, a novel network architecture that facilitates efficient information sharing between portable mobile devices. We design B-SUB, an interest-driven information sharing system for HUNETs, a content-based publish/subscribe that achieves infrastructure-less communication between mobile devices.

v We invent the TCBF, an extension to the counting Bloom filter.

v We conduct extensive theoretical analyses and real world trace driven simulations to evaluate the performance of B-SUB.

ADVANTAGES OF PROPOSED SYSTEM:

  1. This provides stronger privacy guarantee.

  2. Gives better protect user privacy.

SYSTEM REQUIREMENTS:

HARDWARE REQUIREMENTS:

Ø System                          :         Pentium IV 2.4 GHz.

Ø Hard Disk                      :         40 GB.

Ø Floppy Drive                 :         1.44 Mb.

Ø Monitor                         :         15 VGA Colour.

Ø Mouse                            :         Logitech.

Ø Ram                               :         512 Mb.

SOFTWARE REQUIREMENTS:

Ø Operating system           :         Windows XP/7.

Ø Coding Language :         JAVA/J2EE

Ø IDE                      :         Netbeans 7.4

Ø Database              :         MYSQL

REFERENCE:

Yaxiong Zhao, and Jie Wu, “The Design and Evaluation of An Information Sharing System for Human Networks” IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, VOL. 25, NO. 3, MARCH 2014.