Abstract
By using joint modulation and customized constellation set, we show that Quasi-Orthogonal Space-Time Block Code (QO-STBC) can be used to form a new differential space-time modulation (DSTM) scheme to provide full transmit diversity with non-coherent detection. Our new scheme can provide higher code rate than existing DSTM schemes based on Orthogonal STBC. It also has a lower decoding complexity than the other DSTM schemes, such as those based on Group Codes, because it only requires a joint detection of two complex symbols. We derive the design criteria for the customized constellation set and use them to construct a constellation set that provides a wide range of spectral efficiency with full diversity and maximum coding gain.
Original language | English |
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Pages | 545-549 |
Number of pages | 5 |
Publication status | Published - 2004 |
Externally published | Yes |
Event | GLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States Duration: Nov 29 2004 → Dec 3 2004 |
Conference
Conference | GLOBECOM'04 - IEEE Global Telecommunications Conference |
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Country/Territory | United States |
City | Dallas, TX |
Period | 11/29/04 → 12/3/04 |
ASJC Scopus Subject Areas
- General Engineering
Keywords
- Differential space-time modulation
- Low decoding complexity
- Non coherent detection
- Quasi-orthogonal space-time black code