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Downlink Transmission Concept with Diversity Gain in S-DMB System Including IMR
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- Authors
- Hee Wook Kim, Kun Seok Kang, Do Seob Ahn
- Issue Date
- 2006-06
- Citation
- AIAA International Communications Satellite Systems Conference (ICSSC) 2006, pp.849-854
- Publisher
- AIAA
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose downlink transmission concept with diversity gain using intermediate module repeater (IMR) in Satellite digital multimedia broadcasting (S-DMB) system. We do not regard IMRs as simply a repeaters but consider as the antennas for space time block code (STBC) as one of transmit diversity methods. First, transmission scenarios for an application of STBC are represented. And then, we apply STBC in S-DMB system including IMR and compare the performance of the proposed IMR structure to conventional structure. Simulation results shows that the transmit diversity gain can definitely be achieved compared to conventional downlink transmission concept in S-DMB system.
- KSP Keywords
- Block codes, Digital multimedia broadcasting, Diversity gain, Space time(ST), TRANSMIT DIVERSITY, conventional structure, diversity methods, downlink transmission, simulation results, space-time block coding(STBC)