On the Search for High-Rate Quasi-Orthogonal Space-Time Block Code
| dc.creator | Yuen, Chau | |
| dc.creator | Guan, Yong Liang | |
| dc.creator | Tjhung, Tjeng Thiang | |
| dc.date | 2008-06-20 | |
| dc.date.accessioned | 2026-07-07T09:45:51Z | |
| dc.date.available | 2026-07-07T09:45:51Z | |
| dc.description | A Quasi-Orthogonal Space-Time Block Code (QO-STBC) is attractive because it achieves higher code rate than Orthogonal STBC and lower decoding complexity than nonorthogonal STBC. In this paper, we first derive the algebraic structure of QO-STBC, then we apply it in a novel graph-based search algorithm to find high-rate QO-STBCs with code rates greater than 1. From the four-antenna codes found using this approach, it is found that the maximum code rate is limited to 5/4 with symbolwise diversity level of four, and 4 with symbolwise diversity level of two. The maximum likelihood decoding of these high-rate QO-STBCs can be performed on two separate sub-groups of symbols. The rate-5/4 codes are the first known QO-STBCs with code rate greater 1 that has full symbolwise diversity level. | |
| dc.identifier | https://arxiv.org/abs/0806.3325 | |
| dc.identifier | http://arxiv.org/abs/0806.3325 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/163332 | |
| dc.subject | Information Theory | |
| dc.title | On the Search for High-Rate Quasi-Orthogonal Space-Time Block Code | |
| dc.type | text |