?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F243%2F&rft.title=Dynamic+clusters+(Dynamic+Location+of+Phone+Call+Clusters)&rft.creator=Hewett%2C+David&rft.creator=Hicks%2C+Peter&rft.creator=Howell%2C+Peter&rft.creator=Fiedler%2C+Juliusz&rft.creator=Ockendon%2C+John&rft.creator=Pachon%2C+Ricardo&rft.creator=Smith%2C+Honora&rft.creator=Wilson%2C+Eddie&rft.creator=Armour%2C+Tristram&rft.subject=Information+and+communication+technology&rft.description=When+mobile+handsets+are+making+a+call%2C+a+measurement+report+is+sent+to+the+serving+base+station+periodically+which+includes+the+signal+strengths+to+the+base+station+and+the+next+six+strongest+signals+of+the+surrounding+base+stations.+Motorola+asked+the+Study+Group+if+it+was+possible+to+say+whether+we+could+use+this+information+to+infer+if+phone+calls+occur+in+clusters+and+if+it+was+possible+to+determine+the+locations%2C+size+and+other+features+of+these+clusters.%0D%0A%0D%0AThe+Study+Group+found+clusters+in+'signal+space%2C'+that+is%2C+handsets+reporting+similar+signal+strengths+with+the+same+base+stations+and+explored+methods+of+locating+these+clusters+geographically.&rft.date=2008&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F243%2F2%2FMotorola-DynamicClusters.pdf&rft.identifier=++Hewett%2C+David+and+Hicks%2C+Peter+and+Howell%2C+Peter+and+Fiedler%2C+Juliusz+and+Ockendon%2C+John+and+Pachon%2C+Ricardo+and+Smith%2C+Honora+and+Wilson%2C+Eddie+and+Armour%2C+Tristram++(2008)+Dynamic+clusters+(Dynamic+Location+of+Phone+Call+Clusters).++%5BStudy+Group+Report%5D+++++