Khurram Ali

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In this paper, multipath error on Global Navigation Satellite System (GNSS) signals in urban environments is characterized with the help of Light Detection and Ranging (LiDAR) measurements. For this purpose, LiDAR equipment and Global Positioning System (GPS) receiver implementing a multipath estimating architecture were used to collect data in an urban(More)
Thesis title–GNSS Integrity for Aviation and Road User Applications. Thesis Summary–New GNSS constellations and civil signals would allow the use of satellite navigation technologies to support worldwide vertical guidance of an aircraft as low as 200 ft. above ground level without the use of extensive ground infrastructure, which is currently in used to(More)
Partial Packet discard is a congestion control algorithm, implemented at ATM switches, that conserves network bandwidth by discarding redundant ATM cells. The following paper presents an implementation of the Partial Packet Discard algorithm with respect to IP packets. We have also attempted to outline some shortcomings and proposals based on our research(More)
Ectodermal Dysplasias are a heritable group of disorders characterized by faulty development of two or more tissues derived from embryonic ectoderm. This disorder primarily involves skin, hair, nails, teeth and eccrine glands. The disease is usually diagnosed in late infancy and childhood but early diagnosis in a newborn baby tends to have good prognosis.(More)
We study the impact of providing school and child test scores on subsequent test scores, prices, and enrollment in markets with multiple public and private providers. A randomly selected half of our sample villages (markets) received report cards. This increased test scores by 0.11 standard deviations, decreased private school fees by 17 percent and(More)
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