Iftikhar Ahmed Khan

Towards estimating computer users' mood from interaction behaviour with keyboard and mouse

The purpose of this exploratory research was to study the relationship between the mood of computer users and their use of keyboard and mouse to examine the possibility of creating a generic or individualized mood measure. To examine this, a field study (n = 26) and a controlled study (n = 16) were conducted. In the field study, interaction data and self-reported mood measurements were collected during normal PC use over several days. In the controlled study, participants worked on a programming task while listening to high or low arousing background music. Besides subjective mood measurement, galvanic skin response (GSR) data was also collected. Results found no generic relationship between the interaction data and the mood data. However, the results of the studies found significant average correlations between mood measurement and personalized regression models based on keyboard and mouse interaction data. Together the results suggest that individualized mood prediction is possible from interaction behaviour with keyboard and mouse.

Cooperative cognitive network: Performance analysis of Cyclostationary spectrum detection

The Cognitive Radio (CR) continuously monitors the spectrum to detect the presence or absence of the primary user. Cyclostationary is one the efficient spectrum sensing method as it can differentiate among signal, interference and noise in low SNR. In this paper we illustrate the cooperation in cognitive radios by using the Cyclostationary sensing method. We consider the case of cognitive radio cooperating through AWGN channel and using both Amplify-and-Forward (AF) and decode-and-forward (DF) Relaying schemes with different relay locations and exploit their probability of detection. Here we generalize our analysis to two-relay based cognitive radio network for Monte Carlo simulation.

Emerging Technologies in Automobiles

New technologies emerging in todays vehicles are reviewed. The applications covered include hybrid and fuel cell vehicles, new fuel injection and combustion technologies for gasoline and diesel engines, and use of alternative fuels. The impact of new technologies on automotive safety systems and x-by-wire systems is also discussed