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Darn those dropped cellphone calls. Professor Qilian Liang has received a three-year National Science Foundation grant to develop a system that automatically locates space within a bandwidth, reducing or eliminating dead spots in coverage. 鈥淚n the wireless network industry, bandwidth is everything,鈥� Dr. Liang says. 鈥淭he system I鈥檓 developing shows where the room is in a bandwidth.鈥� The project is part of a federal initiative whereby the NSF funds wireless research to advance the science of spectrum access.