Performance of UMTS Code Sharing Algorithms in the Presence of Mixed Web, Email and FTP Traffic

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 6Sprache: EnglischTyp: PDF

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Calin, Doru (Networking Technologies and Performance Department of Bell Labs, Lucent Technologies, Holmdel, NJ 07733, USA)
Abraham, Santosh P. (Qualcomm Inc., San Diego, CA, USA)
Chuah, Mooi Choo (Department of Computer Science and Engineering, Lehigh University, Bethlehem, PA, USA)

The paper presents a performance study of two algorithms for dynamic allocation of the Dedicated CHannels (DCH) in UMTS over the air interface, namely Least Recently Used (LRU) algorithm and an Adaptive algorithm. The algorithms are designed to efficiently share the dedicated channels among users whose traffic patterns are characterized by bursty packet transfers followed by long inactivity periods. Specifically, Web browsing, FTP and Email applications were considered in order to evaluate the performance of the above mentioned resource allocation algorithms in the context of bursty traffic with relaxed delay constraints and in the presence of delays introduced by the backhaul network.