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Title: Sequences for inter node B synchronization in WCDMA TDD mode
Keywords: Synchronization, Autocorrelation, Cross Correlation
Issue Date: 3-Sep-2004
Citation: KHIT YOK-KHIONG (2004-09-03). Sequences for inter node B synchronization in WCDMA TDD mode. ScholarBank@NUS Repository.
Abstract: In order to prevent inter-slot interference and enhance the system capacity in Wideband Code Division Multiple Access (WCDMA) time division duplex (TDD) mode of communication, synchronization between the base stations are necessary. Although the most straightforward way of achieving synchronization is by using the global positioning system (GPS), 3rd Generation Partnership Project (3GPP) hopes to achieve a totally independent and self-reliant communication system. Moreover the cost of deploying the GPS is high. An alternative solution proposed by 3GPP uses Concatenated Extended Complementary (CEC) sequences with multiple code offsets to synchronize the base stations via air-interface since this would reduce the costs of base stations. However the cross-correlation function between CEC sequences exhibits spikes and may interfere with the synchronization burst of a neighboring cluster. Thus new sequences with relatively better cross correlation properties than CEC sequences are being explored.
Appears in Collections:Master's Theses (Open)

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