Abstract
We present a novel differential space-time modulation (DSTM) scheme that is single-symbol decodable and can provide full transmit diversity. It is the first known single-symbol-decodable DSTM scheme not based on Orthogonal STBC (O-STBC), and it is constructed based on the recently proposed Minimum-Decoding-Complexity Quasi-Orthogonal Space-Time Block Code (MDC-QOSTBC). We derive the code design criteria and present systematic methodology to find the solution sets. The proposed DSTM scheme can provide higher code rate than DSTM schemes based on O-STBC. Its decoding complexity is also considerably lower than DSTM schemes based on Sp(2) and double-symbol-decodable QO-STBC, with negligible or slight trade-off in decoding error probability performance.
Original language | English |
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Pages (from-to) | 3329-3334 |
Number of pages | 6 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 5 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2006 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Keywords
- Differential space-time modulation
- Quasi-orthogonal space-time block code
- Single symbol decodable