| Autor: |
WANG Xin, WEI Ji-bo, LI Ying |
| Jazyk: |
čínština |
| Rok vydání: |
2009 |
| Předmět: |
|
| Zdroj: |
Tongxin xuebao, Vol 30, Pp 100-105 (2009) |
| Druh dokumentu: |
article |
| ISSN: |
1000-436X |
| Popis: |
To analyze the performance of space-frequency codes,the Chernoff bound was used in the existing literatures,but it was too loose to conclude the diversity order and coding gain simultaneously.Therefore,a new view of the transmission of space-frequency codes was addressed,which transformed the transmission in frequency selective channels into flat fading channels.Based on this transformation,the performance analysis of space-time coding in flat fading channels was used to present an asymptotic analysis for the performance of space-frequency coding.Then,the design criterion of the full diver-sity-achieving space-frequency code was concluded and the coding gain was also optimized.The analysis was more univer-sal and owned an intelligible comprehension.It integrated the existing analysis of the space-frequency codes.A fast detection algorithm for the code was also proposed.It exploited the trellis decoding method and had a reduced complexity compared with the ML detection.The simulation results confirm the validity of the design criterion. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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