New FacultyExperts in Data Privacy, Wireless Comms Join EECSEECS Assistant Professor FengjunLi is developing cryptographytechniques that enableorganizationsto sharedata whilemaintaininguser privacy.As electronicmedicalrecords,smart grids,<strong>and</strong> othermassivesystemscollect <strong>and</strong>store unprecedented personal data in thename of greater efficiency, reliability, <strong>and</strong>cost savings, how will individual privacybe protected?For example, a smart grid collects dataevery few minutes. <strong>The</strong> information allowsenergy producers <strong>and</strong> users to make moreinformed decisions, but it also showswhen a customer gets up, does laundry,goes online, leaves the house, <strong>and</strong> so on.Patterns emerge, such as when the houseis vacant, that pose additional securityconcerns.Dr. Li has developed an innovative innetworkaggregation approach to datacollection. Instead of sending data directlyto collector devices, smart meters formmulti-hop routes via other smart meters.Nodes along the way aggregate thereceived data with its own <strong>and</strong> forwardthe results to collector devices. Dataaggregation spreads the operations<strong>and</strong> the computational efforts originallyat collector devices into sets of nodes,www.eecs.ku.edugreatly reducing network traffic. <strong>The</strong>approach cuts the network load by morethan 60 percent. For additional security,Dr. Li employs homomorphic encryption.Household data are protected not onlyat intermediate nodes but also at thecollector devices.This fall she taught Advanced Topics inInformation Security (EECS 700). <strong>The</strong>graduate-level course covered securityconcepts, cryptography primitives,authentication, <strong>and</strong> other emergingtopics. She will teach Network Security(EECS 712) this spring.Dr. Li received her Ph.D. in Information<strong>Science</strong>s <strong>and</strong> Technology from thePennsylvania State University in 2010.EECS Assistant Professor Lingjia Liu isdeveloping technologies that will enablefuture wireless networks to support heavytraffic, while providing reliable <strong>and</strong> secureservice fortime-sensitive<strong>and</strong> dataintensiveapplications,such asstreamingvideo <strong>and</strong>webconferencing.His researchfocuses oninter-cell interference mitigation <strong>and</strong>delay-sensitive <strong>and</strong> energy-efficientwireless communication. Dr. Liu's workaims to increase the overall spectralefficiency to support more users <strong>and</strong>applications. From smartphones <strong>and</strong>computer tablets to Blu-ray players<strong>and</strong> e-book readers, millions of devicesare gobbling up the radio frequencyspectrum. Greater efficiency is needed.This fall Dr. Liu taught WirelessCommunication Systems (EECS 865)with EECS Distinguished Professor SamShanmugan. In the spring, he will teachEstimation <strong>and</strong> Detection <strong>The</strong>ory (EECS965). <strong>The</strong> course will introduce students tofundamental concepts in statistical signalprocessing along with their applicationsto electrical <strong>and</strong> computer engineering.Dr. Liu has made numerous technicalcontributions to major wireless st<strong>and</strong>ards,including 3GPP LTE/LTE-Advanced <strong>and</strong>IEEE 802.16m. He has conducted federallyfunded basic research <strong>and</strong> industryresearch, giving him experience insolving problems that have theoreticalsignificance <strong>and</strong> practical importance.Prior to joining KU, Dr. Liu spent morethan three years in the St<strong>and</strong>ardsResearch Laboratory of SamsungTelecommunications America. Hereceived the Global Samsung Best PaperAward in 2008 <strong>and</strong> 2010, respectively.In <strong>2011</strong>, the National Engineers WeekFoundation selected Dr. Liu as one of itsNew Faces of <strong>Engineering</strong> <strong>and</strong> SAMSUNGTelecommunications America honoredhim with an Individual Gold Medal.He received his Ph.D. in <strong>Electrical</strong> &<strong>Computer</strong> <strong>Engineering</strong> from Texas A&MUniversity in 2006. •
Faculty Awardsstudent in 2008, Calnon <strong>and</strong> other studentswanted to participate in the SpaceRobotics Challenge. Dr. Agah created aspecial topics course for the students<strong>and</strong> helped them write grant proposalsto fund the project <strong>and</strong> present it at theInternational Conference on Robotics <strong>and</strong>Automation.Agah Earns Teaching Award“Professor Agah has a true desire tosee his students succeed. Whetherassisting students with their research orencouraging students to participate ineducational outreach, Professor Agahis always willing to spend as much time<strong>and</strong> effort as necessary to provide hisstudents with opportunities to grow, bothacademically <strong>and</strong> personally,” says Calnon.EECS Professor Arvin Agahreceived a surprise visit from KUProvost Jeffrey Vitter <strong>and</strong> otherdignitaries during his Mobile Roboticsclass on August 23. <strong>The</strong>y presented himwith a Kemper Fellowship for TeachingExcellence Award <strong>and</strong> a $7,500 check.Each fall the Kemper fellowships recognize10 outst<strong>and</strong>ing teachers <strong>and</strong> advisers atKU. Now in their 16th year, the awardsare supported by an annual gift fromthe William T. Kemper Foundation <strong>and</strong>matching funds from KU Endowment.Dr. Agah is the eighth EECS professor toreceive a Kemper award.Andrea Valdivia had Dr. Agah forSoftware <strong>Engineering</strong> in 2008. Studentsworked in small teams to develop aNintendo DS game, which she saidwas a great conversation starter duringinternship interviews. Valdivia said thecareer-oriented course showcased Dr.Agah’s strongindustrybackground<strong>and</strong> hispassion forsoftwaredevelopment.“ProfessorAgah'sSoftware <strong>Engineering</strong> class was one ofmy favorites at KU! It was an extremelyh<strong>and</strong>s-on course that gave students aflavor of what it is like to develop solutionsfor real-world scenarios,” said Valdivia,who graduated in May <strong>and</strong> is working atthe Goldman Sachs world headquartersin New York. “His enthusiastic teachinghas made a lasting impression on me <strong>and</strong>certainly countless others.”Mark Calnon returned to KU this fallto begin his doctorate work under thedirection of Dr. Agah. As an EECS graduateEECS doctoral studentChris Redford has Dr.Agah as his adviser.In addition to takingseveral courses from Dr.Agah, Redford conductsartificial intelligenceunder his direction."He has been a fantasticadviser. He findsinteresting elements in your ideas <strong>and</strong>helps you develop a concrete plan for howto achieve them. I always leave his officewith a clearer idea of what I need to do <strong>and</strong>the motivation to do it," says Redford. •Top Photo: EECS Professor Arvin Agah (left) examinesresearch findings with EECS doctoral student ChrisRedford.Inset picture: Mark Heider, president of CommerceBank, presents EECS Professor Arvin Agah with a $7,500check as part of his W.T. Kemper Fellowship for TeachingExcellence.EECS News <strong>2011</strong> 9