Soft Handoff Admission Control in DS-CDMA Cellular Systems Supporting Voice and Stream-Type Data Services

Jin Weon Chang: Department of Information & Control Engineering, Hankyong National University, Anseong Gyeongi 456-749, Korea. (TEL) +82-31-670-5295 (FAX) +82-31-670-5299 (E-Mail) jwchang@hknu.ac.kr

Dan Keun Sung: Department of Electrical Eng. & Computer Science, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea. (TEL) +82-42-869-3439 (FAX) +82-42-869-3410 (E-Mail) dksung@ee.kaist.ac.kr

Abstract

In third-generation (3G) DS-CDMA cellular systems as well as 1G/2G systems soft handoff call requests of real-time services are more important than new call requests from the viewpoint of quality of service (QoS). In order to find a way for the higher QoS guarantee of soft handoff requests of real-time services in 3G DS-CDMA systems which support various types of service an admission control scheme, the proposed scheme (the P-Scheme) [1, 2], for delay-sensitive voice and delay-tolerant stream-type data services is discussed. The P-Scheme is compared with a conventional handoff reservation scheme (C-Scheme).

Short Biography

Jin Weon Chang: Jin Weon Chang is full-time lecturer in the Dept of Information & Control Engineering at HanKyong National University. His current research interests are in resource management, and mobility management for wireless communication systems.

Before he joined the faculty of HanKyong National University in 2004, he was Senior Researcher in SamSung electronics Co. Ltd. from 2000 to 2004. He received a BS degree from the Department of Electrical & Electronic Eng., KAIST, in 1993; an MS degree from the Department of Electrical & Electronic Eng., KAIST, in 1995; and a Ph.D degree from the Department of Electrical & Electronic Eng., KAIST, in 2000.

Dan Keun Sung: He received the B.S. degree in Electronics Engineering from Seoul National University in 1975 and the M.S. and Ph.D. degrees in Electrical & Computer Engineering from the University of Texas at Austin, in 1982 and 1986, respectively. From May 1977 to July 1980, he was a research engineer at the Electronics & Telecommunications Research Institute (ETRI) where he had been engaged in various projects including the development of an electronic switching system. In 1986 he joined the faculty of KAIST where he is currently Professor at the department of Electrical Engineering and Computer Science.