Investigation of Uplink Admission Control Schemes in Time Division Duplex-Code Division Multiple Access (TDD-CDMA) System

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (5): 75-79.

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Investigation of Uplink Admission Control Schemes in Time Division Duplex-Code Division Multiple Access (TDD-CDMA) System

PENG Mu-gen, WANG Wen-bo

Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China

Received:2003-11-13 Online:2004-05-28

Abstract

Abstract: An advanced uplink admission control mechanism is proposed for TDD-CDMA system, in which the multi-user detection (MUD) technique is adopted. By estimating the increasing interference and system load for new or modified users, the proposed admission control scheme rejects or accepts the user to access the system. With an OPNET-based dynamic system simulator, the performance of TDD-CDMA system is evaluated. The simulation results show that the proposed scheme can improve the system performance and the proper admission control threshold is changed with MUD factor.

Key words: time division duplex-code division multiple access;interference estimation, admission control, background noise rise

CLC Number:

TN911

PENG Mu-gen, WANG Wen-bo. Investigation of Uplink Admission Control Schemes in Time Division Duplex-Code Division Multiple Access (TDD-CDMA) System[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2004, 27(5): 75-79.

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Investigation of Uplink Admission Control Schemes in Time Division Duplex-Code Division Multiple Access (TDD-CDMA) System

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