Abstract
In this paper, we present a class of unitary signal constellations used for differential space-time modulation with two transmit antennas. The proposed signal constellations improve the cyclic group codes. In particular, the 16 signal constellation in the class has the largest known diversity product of 4√/2 among all the existing unitary space-time codes. Furthermore, the 16 signal constellation is a subset of a finite group of size 32, which consists of the original 16 unitary matrices Vl, l = 0,1, ...;, 15, and their multiplications with j = √-1, i.e., jVl, l = 0, 1, ..., 15.
| Original language | English |
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| Pages (from-to) | 716-719 |
| Number of pages | 4 |
| Journal | Conference Record of the Asilomar Conference on Signals, Systems and Computers |
| Volume | 1 |
| Publication status | Published - 2000 |
| Externally published | Yes |
| Event | 34th Asilomar Conference - Pacific Grove, CA, United States Duration: 29 Oct 2000 → 1 Nov 2000 |