International Journal of Computer and Applications

https://link.springer.com/content/pdf/10.1057%2Fjors.1996.159.pdf

Modeling and Analysis of Stochastic Systems

Advancements in the field of autonomous underwater vehicle

Underwater communication remains a challenging technology via communication cables and the cost of underwater sensor network (UWSN) deployment is still very high. As an alternative, underwater wireless communication has been proposed and have received more attention in the last decade. Preliminary research indicated that the Radio Frequency (RF) and Magneto-Inductive (MI) communication achieve higher data rate in the near field communication. The optical communication achieves good performance when limited to the line-of-sight positioning. The acoustic communication allows long transmission range. However, it suffers from transmission losses and time-varying signal distortion due to its dependency on environmental properties. These latter are salinity, temperature, pressure, depth of transceivers, and the environment geometry. This paper is focused on both the acoustic and magneto-inductive communications, which are the most used technologies for underwater networking. Such as acoustic communication is employed for applications requiring long communication range while the MI is used for real-time communication. Moreover, this paper highlights the trade-off between underwater properties, wireless communication technologies, and communication quality. This can help the researcher community by providing clear insight for further research.

Underwater Wireless Sensor Networks: A Survey on Enabling Technologies, Localization Protocols, and Internet of Underwater Things

Energy-efficient node scheduling algorithms for wireless sensor networks using Markov Random Field model

paper attempts to describe a literature review of Automatic Speech Recognition. It discusses past years advances made so as to provide progress that has been accomplished in this area of research. One of the important challenges for researchers is ASR accuracy. The Speech recognition System focuses on difficulties with ASR, basic building blocks of speech processing, feature extraction, speech recognition and performance evaluation. The main objective of the review paper is to bring to light the progress made for ASRs of different languages and the technological viewpoint of ASR in different countries and to compare and contrast the techniques used in various stages of Speech recognition and identify research topic in this challenging field. We are not presenting exhaustive descriptions of systems or mathematical formulations but rather, we are presenting distinctive and novel features of selected systems and their relative merits and demerits.

/pdf/automatic-speech-recognition-a-review-phue5xkfzw.pdf

Automatic Speech Recognition: A Review

The paper describes the concept of coverage problem in the wireless sensor networks (WSNs). The issue of quality of service is more closely related to the coverage problem in WSNs. The motive behind the coverage problem is to have the supervision of at least one node at every point of targeted region. Efficient coverage can be defined as the network lifetime by describing the features like sensing ability and energy consumption by sensing nodes. The covering strategies based on Computational Geometry are discussed and various other strategies have been elaborated.

Survey on Coverage Problems in Wireless Sensor Networks

Internet of Things is the internetworking of devices such as heart monitoring, automobiles with built-in sensors, environmental monitoring, home automation and lightning that enable these devices to gather, communicate, share, receive, and transfer data over a network. The Internet of Things is about making the surrounding environment smart including the buildings used for living beings like homes and hospitals. In this paper, various sensors are deployed in home such as motion sensors, luminance sensors and temperature sensors, is discussed. Algorithm to save the energy of lights and air conditioners of the entire home is also implemented in this paper. Energy consumption before and after implementation of system model has been calculated which showed that a total of 20.78% energy has been saved.

Home Automation Using Internet of Things

The underwater sensor networks (UWSNs) exhibit different characteristics from terrestrial WSNs. To make the sensed data meaningful, one of basic task is the localization of sensor nodes. In UWSNs, this is not feasible to use global positioning system due to its issue of propagation. This senses localization as a fundamental as well as sound issue in the UWSNs. In spite of continuous and sincere research effort, the time synchronization between the sensor nodes for their localization is also a tough job. To address these issues, a localization scheme free from the concept of time synchronization for large scale 3D-UWSNs based on dive and rise mobile beacons floating over the sea surface has been proposed in the given paper. The analytical analysis of the proposed scheme is also presented in the paper. In the simulation section, the performance of the proposed scheme is evaluated in terms of coverage and the number of localized nodes. A discussion based on various obtained results is also given in the paper.

Rishi Pal Singh

Papers

Automatic Speech Recognition: A Review

Survey on Coverage Problems in Wireless Sensor Networks

Home Automation Using Internet of Things

A Localization Scheme for Underwater Sensor Networks Without Time Synchronization

Localization schemes for Underwater Acoustic Sensor Networks - A Review