Investigation on Adjacent Cell Interference Cancellation in Forward Link of TDD-CDMA System

doi:10.13190/jbupt.200602.78.130

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2006, Vol. 29 ›› Issue (2): 78-8.doi: 10.13190/jbupt.200602.78.130

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Investigation on Adjacent Cell Interference Cancellation in Forward Link of TDD-CDMA System

YAN Fa-jun, SUN Guang-yong, WANG Wen-bo

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications

Online:2006-04-28 Published:2006-04-28

Abstract

Abstract: Investigated on adjacent cell interference, an interference cancellation scheme was proposed. The method combines serial interference cancellation (SIC) and joint detection (JD). In the forward link of time division duplex-code division multiple access (TDD-CDMA) system, the basic sequence of severe interfering users of adjacent cell were judged firstly, then the channel impulse responses were estimated and the spread code of such users were judged. Afterwards, the strong adjacent cell interference (ACI) was cancelled using SIC, multiple access interference (MAI), inter symbol interference (ISI) and the residual ACI are eliminated by JD. Simulation results show that this scheme cancel ACI of forward link efficiently.

Key words: time division duplex, code division multiple access, adjacent cell interference, intra-cell interference

YAN Fa-jun, SUN Guang-yong, WANG Wen-bo. Investigation on Adjacent Cell Interference Cancellation in Forward Link of TDD-CDMA System[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2006, 29(2): 78-8.

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Investigation on Adjacent Cell Interference Cancellation in Forward Link of TDD-CDMA System

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