Handover Optimization in Wireless Microcellular ATM Networks |
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Authors: | S Louvros D Karaboulas S Kotsopoulos |
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Affiliation: | (1) Wireless Telecommunications Laboratory, Department of Electrical and Computer Engineering, University of Patras, Hellas |
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Abstract: | Microcellular solutions in wireless ATM networks increase the network traffic control as a result of frequent handover requests.
The blocking probability or the forced termination probability presents a quality of service criterion for evaluation of certain
handover techniques. This paper presents a handover protocol that can avoid cell loss and guarantee cell sequence, and a two
layer wireless call admission control is studied, using Markov state diagrams, in order to optimize the performance of wireless
ATM networks.
Spiros Louvros was born in Corfu island, Hellas in 1971. He received his Bachelor in Physics from the University of Crete, Hellas and his
Master in telecommunications from the University of Cranfield, U.K. with a scholarship for graduate studies from the Alexandros
Onassis Institution. In 2004 he received his PhD from the University of Patras, Hellas, in mobile communications. He has worked
for Siemens as a microwave engineer and for Vodafon-Hellas as a switching engineer. His current occupation is section manager
in the Maintenance Department in Cosmote S.A. He has participated in several research projects regarding mobile communications.
His area of interest is in mobile networks, telecommunication traffic engineering, wireless ATM and optical communications
and is documented by over 30 papers in international literature and conference proceedings. He is member of FITCE and Hellenic
Physics Union and he holds a position of external researcher in the Wireless telecommunications Lab of the Electrical Engineering
department, University of Patras.
Dimitrios Karaboulas was born in Patras-Hellas. He received his diploma in Electrical & Computer Engineering from the University of Patras, Hellas
in 1994. He has been working, since 1994, as an external consultant-specialist in several telecommunication companies in Hellas
and he currently holds a company firm for ISO certification, supervision and technical solutions. He is currently a PhD candidate
in the Wireless Laboratory of Electrical & Computer Engineering Department, University of Patras, Hellas and his research
interests are in the area of Wireless ATM networking, mobile communications and telecommunication network planning. He has
participated in several research projects regarding mobile communications and enterprise telecommunication solutions and is
documented by over 50 papers in conference proceedings. He is also an active member of the Technical Chamber of Greece.
S. Kotsopoulos was born in Argos-Argolidos (Greece) in the year 1952. He received his B.Sc. in Physics in the year 1975 from the University
of Thessaloniki, and in the year 1984 got his Diploma in Electrical and Computer Engineering from the University of Patras.
He did his postgraduate studies in the University of Bradford in United Kingdom. And he is an M.Phil and Ph.D. holder since
1978 and 1985 correspondingly. Currently he is member of the academic staff of the Department of Electrical and Computer Engineering
of the University of Patras and holds the position of Associate Professor. Since 2004, is the Director of the Wireless Telecommunications
Laboratory and develops his professional life teaching and doing research in the scientific area of Telecommunications, with
interest in mobile communications, interference, satellite communications, telematics applications, communication services
and antennae design. Moreover he is the (co)author of the book titled “mobile telephony”. The research activity is documented by more than 160 publications in scientific journals and proceedings of International
Conferences. Associate Professor Kotsopoulos has been the leader of several international and many national research projects.
Finally, he is member of the Greek Physicists Society and member of the Technical Chamber of Greece. |
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Keywords: | handover Markov state diagrams microcellular wireless ATM networks |
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