Abstract:Mobility Management scheme plays a significant role in the Wireless Sensor Networks to provide seamless connectivity to the mobile users on the move. When the MNs/MHs (Mobile Nodes/Mobile Hosts) is communicating with other node, the network has to follow the MNs/MHs and allocate required resource to provide uninterrupted service without user awareness that in fact the network facility (base station) is changing. Mobility Management is used to track the mobile users they move from place to place in the coverage of wireless mobile networks to ensure ubiquitous communications. Thus, mobility management is a key component for the effective operations of wireless networks to deliver wireless Internet services. Wireless Sensor Networks consist of base stations, each of which is responsible for relaying communication services for the mobiles travelling in its coverage known as cells. When MNs/MHs are in communication and moving from one cell to another, the base station in the new cell will allocate a channel to continue to provide the service to the mobile user without any interruption. The switch from one channel to another (from one base station to another base station) is known as handoff. The importance of mobility management is the handoff management (how to achieve a smooth handoff between base stations without degrading the service). When users do not engage any communications and move around, the system has to track them in order to deliver possible services to them. This can be done by Location management/Mobility management. In Internet of Things(IoT)[23], Sensor nodes are being deployed/installed on many objects and some of them are mobile (moving) including mobile gadgets, physical objects (living or non-living) etc. in order to get and transmit information over the internet and handoffs are major issues. These mobile objects require sufficient Mobility Management schemes to take care of data transmission. Existing research has made many improvements in terms of Handoff Latency (H.O.) but less attention has paid towards signaling cost and packet loss particularly in time critical areas. The study provides the complete survey of Host based and Network based mobility management schemes including 6LoWPAN (Low Power Wireless Personal Area Network), PMIPV6 (Proxy Mobile IPv6), challenges associated with them and solution to meet these challenges.

Keywords:IP Mobility, MIPv6, PMIPv6, 6LoWPAN and WSN.

Abstract:This paper represents that photovoltaic and fuel cells provide an additional method of acquiring energy, converting sunlight directly into electricity and other form of energy through the use of semiconductors .This paper also tells about modern applications and investigation on incredible solar energy in real World. The Sun is the ultimate source of energy. Here we are focusing on ‘Photovoltaic and Fuel Cells application in Remote Areas’ This Paper also deals with the various utilities of solar energy and makes life comfortable & nature friendly. Solar energy is an important, clean, cheap and abundantly available renewable energy.

Keywords:

Abstract:With the advent of web 2.0 and related technologies, the volume of user-generated social media content (UGSMC) is rapidly growing and likely to increase even more in the near future. Social networking apps such as Twitter, Facebook and Google+ are gaining more popularity as they allow people to share and express their views about happenings, have discussion with different communities, or post messages across the world. Twitter sentiment analysis (TSA) extends any organization’s ability to capture and study public sentiment towards the social events and commodities related to them in real time. This paper provides a comprehensive survey on techniques and applications of TSA available in the literature. The survey focuses on issues such as pre-processing techniques, feature selection methods, learning models, and performance of each method as a criterion. The survey reveals some of the traditional machine learning (ML) algorithms have been efficiently used to work on Twitter data. In conclusion, the paper cites many promising issues for further research in this domain.

Keywords:Twitter Sentiment analysis, Twitter data, Machine learning, Natural language processing

Abstract:A widely used TCP protocol is originally developed for wired networks. It has many variants to detect and control congestion in the network. However, Congestion control in all TCP variants does not show similar performance in MANET as in wired network because of the fault detection of congestion. In this paper, we do a performance comparison between TCP variants NEW RENO, SACK and Vegas in AODV and DSR reactive (On-Demand) routing protocols. Network traffic between nodes is provided by using File Transfer Protocol (FTP) application. Multiple scenarios are created and the average values of each performance parameter are used to evaluate the performance. Based on different performance metrics such as jitter, throughput, packet loss, signal received with error and bytes received, are taken in consideration to analyse the performance.

Keywords:Congestion Control, NEW RANO, TCP sack, TCP vegas, MANET, AODV, DSR

Abstract:In this paper, design and development of a multiple sensors based fire extinguisher robot is proposed and implementation is demonstrated with a brief discussion of construction and operation. The developed fire extinguisher robot can be operated in multiple modes using the DTMF and Bluetooth remote control as well as GSM and GPS technology. Basically, three different sensors of flame sensor, temperature sensor, and smoke sensor have been used to ensure proper detection of fire. The robot can be controlled using both DTMF remote control and Android smartphone and can be operated in three different modes. The first mode allows full autonomous operation of the robot which can be activated by the user or by the robot itself based on the situation. The second mode is a line following mode where robot follows a black drawn line to detect fire and the third mode is complete manual operation using remote control.

Keywords:fire extinguisher robot; arduino mega; dtmf; bluetooth