Richa Tiwari

Follower

Following

Co-author

Public Views

Andrej Dujella

University of Zagreb

Hemin Koyi

Uppsala University

Jana Javornik

University of East London

Armando Marques-Guedes

UNL - New University of Lisbon

Graham Martin

University of Leicester

Gwen Robbins Schug

University of North Carolina at Greensboro

Gabriel Gutierrez-Alonso

University of Salamanca

John Sutton

Macquarie University

Eros Carvalho

Universidade Federal do Rio Grande do Sul

Kevin Arbuckle

Swansea University

Uploads

Papers by Richa Tiwari

Video genre detection using a multimodality approach

Proceedings of the 19th ACM international conference on Multimedia, 2011

In this abstract, we introduce the idea of our new multimodality approach towards video genre det... more In this abstract, we introduce the idea of our new multimodality approach towards video genre detection. The two novelties of this algorithm are that firstly it is based on identifying relationships between semantic concepts and genres in videos, which can later help in distinguishing videos in different genres. Secondly, we apply topic level genre detection such as a &#39;talk show&#39;

An Analytical Study of Employee Performance and Its Relationship with Equal Opportunities in Service Industry

International Journal for Research in Applied Science and Engineering Technology

Download

A NOVEL METHOD FOR IMPROVING BIT ERROR RATE IN SENSOR NETWORKS BY USING ORTHOGONAL SPACE TIME BLOCK CODE (OSTBC) CODING

by 3Ciencias Editorial Científica and Richa Tiwari

3C Tecnología. Glosas de innovación aplicadas a la pyme. ISSN: 2254 – 4143, Sep 14, 2020

For the designing of any network, lifetime and size of the network are the most important paramet... more For the designing of any network, lifetime and size of the network are the most important parameters in addition to that high data rate and low bit error rate also play an important role in the designing of any sensor network. In this paper, new transmission techniques for the transmission of sensors data has been proposed for sensor networks by combining various modulation and coding techniques into the network transmission. The proposed technique is used to improve the Bit Error Rate performance of the wireless sensor network, in most of the wireless sensor networks ,bits are converted into packets and these packets are transmitted from source to destination during that transmission the quality of physical layer is determined by the Bit Error Rate (BER) and the Packet Delivery Rate (PDR). The physical layer deals with transmission of bits over wireless link the designing constraints of this layer is modulation, diversity and coding. In this paper various modulation, coding and diversity techniques are incorporated into sensor network for reducing Bit Error Rate (BER). The proposed system divides the network into two types of nodes, first one is the sensor nodes, equipped with short distance transmission capability and another one is special nodes that are equipped with modulators and coders for transmitting data over long distance. This proposed system also extended for providing the secured data transmission by the use of various error detection and correction codes.

Download

Various Methods of Link Design for Transferring Data in Wireless Sensor Networks for different Applications

IOP Conference Series: Materials Science and Engineering, 2021

This paper offers the different type transmission schemes used in wireless sensor networks. The w... more This paper offers the different type transmission schemes used in wireless sensor networks. The wireless sensor network used in a number of applications such as Agriculture, Military, Medical, Multimedia etc. According to the applications there are different quality of service parameters and designing requirements for different layers in network design. While designing any ad hoc network or sensor network many designing principals and challenges are taken into consideration. For the designing of protocols layering in ad hoc sensor network basically a five layer model is taken into consideration. These layers are application, transport, network, Medium access control and physical layer. In this paper different types of designing constraints associated with physical and medium access layer has been introduced for different applications in sensor networks. In that manner this paper helps us to select the designing of a link for particular application.