Downlink DSTBC-WCDMA in a fast time-dispersive channel

College

Gokongwei College of Engineering

Department/Unit

Electronics And Communications Engg

Document Type

Archival Material/Manuscript

Publication Date

2007

Abstract

In this paper, the Differential Space-Time Block Code (DSTBC) modulation is applied to the downlink transmission of the WCDMA system to enhance system performance in fast-varying time-dispersive channels. The effect of scrambling operation is also considered to improve correlation between users' signal. Among the receivers presented here, the differential space-time block code deterministic de-prefix combined (D-Det-DP-C) receiver shows the best performance. Since DSTBC-WCDMA is a differential modulation scheme, the best performance is obtained under the condition that the receiver has complete information regarding the interferes to minimize the effect of multipath and multi-user interference.

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Disciplines

Electrical and Computer Engineering

Note

Undated; Publication/creation date supplied

Keywords

Wireless communication systems; Space time codes; Code division multiple access

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