Kablosuz paket verisi için istatistiksel hizmet kalitesi garantisi ve 3G/WLAN sistem bütünleştirme yöntemleri

ABSTRACT Rapid developments in the wireless technologies require the networks of tomorrow be more versatile and able to handle different types of load with adaptive approaches. The future wireless systems will employ all-IP architectures to provide seamless interconnection with the global data network, the Internet. The type of content that will be carried over the wireless networks is also changing towards rich multimedia and interactivity via the use of packet switching. Hence the design of these wireless systems requires the consider ation of many aspects of content transport from physical layer issues to application layer requirements. At this point a cross-layer design is essential for future wireless systems. Since all types of content, whether they be background data, interactive web services or streaming audio/video, are becoming more packet oriented, efficient resource management methodologies should be developed to satisfy user requirements as well as increase overall system performance. QoS is thus an important issue in the design of data networks, whether wireless or wireline. The study involved in this thesis focuses on the QoS aware resource management al gorithms for the recently standardized IS-856 data only cellular system. QoS aware algo rithms are proposed and numerous system evaluations are performed with respect to the algorithms already present in the literature. A wideband study is also conducted by utilizing 3x MC option for the IS-856 system. Besides 3G system evaluations, 3G/WLAN integra tion methodologies are also investigated. System performance of an integrated schedul ing/routing algorithm is studied.