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Outage performance of OFDM Ad-hoc routing with and without subcarrier grouping in multihop network
(
IEEE
, 2012 , Conference Paper)
In this contribution, we investigate Decode and Forward (DF) OFDM Ad-hoc Routing strategy with bottleneck maximization. We derive the exact outage probability and diversity order for the different scenarios: with and without ...
ICFHR2012 competition on writer identification - Challenge 2: Arabic scripts
(
IEEE
, 2012 , Conference Paper)
Arabic writer identification is a very active research field. However, no standard benchmark is available for researchers in this field. The aim of this competition is to gather researchers and compare recent advances in ...
A set of geometrical features for writer identification
(
Springer
, 2012 , Conference Paper)
Writer identification is an important field in the forensic document examination. We propose in this paper a set of geometrical features that makes it possible to characterize writers. They include directions, curvatures ...
An online signature verification system for forgery and disguise detection
(
Springer
, 2012 , Conference Paper)
Online signatures are acquired using a digital tablet which provides all the trajectory of the signature as well as the variation in pressure with respect to time. Therefore, online signature verification achieves higher ...
A multi-modal face and signature biometric authentication system using a max-of-scores based fusion
(
Springer
, 2012 , Conference Paper)
Face and signature based multimodal biometric systems are often required in various areas, such as banking biometric systems and secured mobile phone operating systems, among others. Our system combines these two biometric ...
QUWI: An Arabic and English handwriting dataset for offline writer identification
(
IEEE
, 2012 , Conference Paper)
This paper presents a new offline dataset called the Qatar University Writer Identification dataset (QUWI). This dataset contains both Arabic and English handwritings and can be used to evaluate the performance of offline ...
Design of Qatar University's first solar car for Shell Eco-marathon competition
(
IEEE
, 2012 , Conference Paper)
Research and development in the area of renewable energy is growing fast, supported by the increasing awareness about sustainability, environment and limitation of conventional sources of energy. Interestingly, oil and gas ...
Towards understanding the effects of climatic and environmental factors on solar PV performance in arid desert regions (Qatar) for various PV technologies
(
IEEE
, 2012 , Conference Paper)
The sensitivity of various solar photovoltaic technologies to dust, temperature and relative humidity is investigated for Qatar's environment. Results obtained show that mono-crystalline PVs have efficiencies as high as ...
Enhancing student learning in chemical engineering design via role play and enquiry guided learning: A case study from Qatar
(2012 , Conference Paper)
Plant design is the capstone design course taken in the senior year of a chemical engineering students at Qatar University and is spread over two semesters (Plant Design I and Plant Design II). The course content, delivery ...
Calibration of time features and frequency features in the time-frequency domain for improved detection and classification of seizure in newborn EEG signals
(
IEEE Computer Society
, 2012 , Conference Paper)
This paper presents new time-frequency features for seizure detection in newborn EEG signals. These features are obtained by calibrating relevant time features and frequency features in the joint time-frequency domain. The ...