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Comparison of Space-Time Block Coding and Cyclic Delay Diversity for a Broadband Mobile Radio Air Interface
Overview In this paper, two different types of Space-Time Block Codes (STBC) are applied in the downlink of a broadband mobile radio air interface based on MCCDMA, which is a promising candidate for a 4th generation mobile radio system. The first type are "STBCs from orthogonal designs". For 2 TX-antennas, this is the well-known "Alamouti"-scheme. These STBCs are compared to a different type, called Cyclic Delay Diversity (CDD), which can be considered as STBC. Compared to STBCs of the first type, CDD can be applied with an arbitrary number of TX-antennas. Furthermore, no modification at the receiver is necessary, if the number of TX-antennas is changed.
| Publisher | German Aerospace Center | File Format | |
|---|---|---|---|
| Date Published | August 2003 | Downloads | 1 |
| Format | White Papers | ||
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