Investigation on Interference Distribution in TDD CDMA Systems

doi:10.13190/jbupt.200506.84.dujh

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2005, Vol. 28 ›› Issue (6): 84-88.doi: 10.13190/jbupt.200506.84.dujh

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Investigation on Interference Distribution in TDD CDMA Systems

DU Jiuhui,PENG Tao,LI Shaosheng,WANG Wenbo

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Online:2005-12-28 Published:2005-12-28

Abstract

Abstract:

In order to investigate the interference distribution in time division duplex code division multiple access (TDD CDMA) system, the difference of interference distribution between TDD CDMA and frequency division duplex (FDD) CDMA systems was investigated. By introducing smart antennas, the inter to intra cell interference ratio in CDMA systems was deduced. And taking TD SCDMA as an example, static and dynamic system level simulator was established to validate the conclusion of theoretical analysis. Simulation results show that sector antenna and smart antennas can reduce the inter to intra cell interference ratio effectively and slow dynamic channel allocation scheme is also able to weaken the inter cell interference in TDD CDMA systems.

Key words: mobile communication, interference analysis, time division duplex code division multi access, intra cell interference

CLC Number:

TN9295

DU Jiuhui,PENG Tao,LI Shaosheng,WANG Wenbo. Investigation on Interference Distribution in TDD CDMA Systems[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2005, 28(6): 84-88.

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Investigation on Interference Distribution in TDD CDMA Systems

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