Bluejacking

ABSTRACT

Bluejacking is the sending of unsolicited messages over Bluetooth to Bluetooth-enabled devices such as mobile phones, PDAs or laptop computers, sending a vCard which typically contains a message in the name field (i.e. for bluedating or bluechat) to another Bluetooth enabled device via the OBEX protocol. Bluetooth has a very limited range; usually around 10 meters on mobile phones, but laptops can reach up to 100 meters with powerful transmitters.

Bluejacking allows phone users to send business cards anonymously using Bluetooth wireless technology. Bluejacking does not involve the removal or alteration of any data from the device. Bluejackers often look for the receiving phone to ping or the user to react. In order to carry out a bluejacking, the sending and receiving devices must be within 10 meters of one another. Phone owners who receive bluejack messages should refuse to add the contacts to their address book. Devices that are set in non-discoverable mode are not susceptible to bluejacking.

Mobile phones have been adopted as an everyday technology, and they are ubiquitous in social situations as users carry them around as they move through different physical locations throughout the day. As a communicative device, the mobile phone has been gradually taken up in ways that move beyond merely providing a channel for mediated conversation. One such appropriation is bluejacking, the practice of sending short, unsolicited messages via vCard functionality to other Bluetooth-enabled phones. To choose the recipients of bluejacks, senders complete a scan using their mobile phones to search for the available Bluetooth-enabled devices in the immediate area. A bluejacker picks one of the available devices, composes a message within a body of the phone’s contact interface, sends the message to the recipient, and remains in the vicinity to observe any reactions expressed by the recipient.

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Nokia Morph Technology

ABSTRACT

In business a product could have a shorter life if it can’t win the hearts of people and showcase new technology, so Nokia is coming up with the Nokia Morph flexible mobile phone which the company claims include nanotechnology and would immensely benefit its end-users. The main benefit of Nanotechnology is that its components are flexible, transparent and extremely strong. The company believes this latest technology would be a distinctive phone by 2015, but a few technical glitches remain to be solved, like the use of new battery materials etc.

Nokia morph is a joint technology concept, developed by Nokia Research Center (NRC) and the University of Cambridge (UK). The morph demonstrate how future mobile device might be stretchable and flexible, allowing the user to transform their mobile devices into radically different shaped. It demonstrates the ultimately that nanotechnology might be capable of delivering: flexible material, transparent electronics and self-cleaning surface. Fibril proteins are woven into three dimensional meshes that reinforce thin elastic structures. Using the same principle behind spider silk, this elasticity enables the device to literally changes shapes and configure itself to adapt to the task at hand.

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Emotional Annotation of Text

ABSTRACT

Emotion is at the core of understanding ourselves and others, and the automatic expression and detection of emotion could enhance our experience with technologies. Emotion analysis is a rapidly developing area in computational linguistics. With the advent of affective computing, the task of adequately identifying, representing and processing the emotional connotations of text has acquired importance. This seminar concentrates on how the emotion of the text is annotated. The emotion of a sentence of text should be derived by composition of the emotions of the words in the sentence. Existing approaches to this task rely most often on a simplified representation of the sentence as a bag of words, where all words contribute in equal measure. However, intuitively certain words can probably be considered more significant; depending on the role they play in the word from their syntactic or semantic structure. Of the various existing approaches for representing emotions, some are better suited for some problems and some for others. In this seminar I am focusing on the various problems and the technologies used to implement the same and how the emotional annotation of a text is done by ontological reasoning.

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Issues of Routing IN VANET

ABSTRACT

Vehicular Ad Hoc Network (VANET) is a sub class of mobile ad hoc networks. VANET provides wireless communication among vehicles and vehicle to road side equipments. The communication between vehicles is used for safety, comfort and for entertainment as well. The performance of communication depends on how better the routing takes place in the network. Routing of data depends on the routing protocols being used in network. In this study different ad hoc routing protocols for VANET are studied. The main aim of this study is to identify which ad hoc routing method has better performance in highly mobile environment of VANET. To measure the performance of routing protocols in VANET, two different scenarios i.e. city and highway are considered. Routing protocols were selected carefully after carrying out literature review. The selected protocols were then evaluated through simulation in terms of performance metrics i.e. throughput and packet drop. After simulation results, MATLAB can be used to plot the graph to compare the results of selected routing protocols with each other.

From the results, it is observed that A-STAR shows better performance in terms of high throughput and low packet drop as compared to AODV and GPSR in city environment, while GPSR shows better performance as compared to AODV in both highway and city environment of VANET. Based on the results of performance metrics in different environments of VANET, it is realized that position based routing method of VANET outperformed the traditional ad hoc topology based routing. In VANET the protocol performance depends on vehicle speed, driving environment etc. that may vary from one environment of network to another.

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Touch Screens With Feelings

ABSTRACT

This seminar includes the theory, design and construction of a haptic display for creating texture sensations through variations in surface friction. Ultra sonic frequency, low amplitude vibrations between two flat plates have been shown to create a squeeze film of air between the two plate surfaces thereby reducing the friction. Here, it is shown that a reduction of friction will also occur between a human finger and a vibrating plate. Thus, a vibrating plate can serve as a haptic interface. The amplitude of vibration can also be correlated to the amount of friction reduction the plate and the finger. Varying the surface friction between the finger and the haptic interface is a way of indirectly controlling shear forces on the finger during active exploration. Using finger position and velocity feedback on the display allows for the creation of spatial texture sensations.

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Wearable Health Care System on Textile Platform

ABSTRACT

A comfortable health monitoring system is based on a wearable interface implemented by integrating fabric sensors, advanced signal processing techniques and modern telecommunication systems, on a textile platform. Conducting and piezoresistive materials in form of fiber and yarn are integrated in a garment and used as sensors, connectors and electrode elements. Simultaneous recording of vital signs allows extrapolation of more complex parameters and inter-signal elaboration that contribute to produce alert message and synoptic patient table. The system is designed to be minimally invasive, comfortable and wearable, where the knitted fabric sensors and electrodes are distributed and connected to an electronic portable unit, the acquired signals can then be transmitted to a monitoring system.

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Femtocells Technology

ABSTRACT

      Femtocells, a technology little-known outside the wireless world, promise better indoor cellular service. In telecommunication, a Femtocell is a small cellular base station, typically designed for use in a home or small business. It connects to the service provider’s network via broadband. Current designs typically support 2 to 4 active mobile phones in a residential setting, and 8 to 16 active mobile phones in enterprise settings. A Femtocell allows service providers to extend service coverage indoors, especially where access would otherwise be limited or unavailable. For a mobile operator, the attractions of a Femtocell are improvements to both coverage and capacity, especially indoors. This can reduce both capital expenditure and operating expense.

      A Femtocell is typically the size of a residential gateway or smaller, and connects into the end-user’s broadband line. Once plugged in, the Femtocell connects to the MNO’s mobile network, and provides extra coverage in a range of typically 30 to 50 meters for residential Femtocells.

      The end-user must declare which mobile phone numbers are allowed to connect to his/her Femtocell, usually via a web interface provided by the MNO. When these mobile phones arrive under coverage of the Femtocell, they switch over from the Macrocell (outdoor) to the Femtocell automatically. Most MNOs provide means for the end-user to know this has happened, for example by having a different network name appear on the mobile phone. All communications will then automatically go through the Femtocell. When the end-user leaves the Femtocell coverage (whether in a call or not), his phone hands over seamlessly to the macro network.

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