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Conference Paper
Analysis of Channel Capacity for Three-layer Signals in Layered Division Multiplexing System
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- Authors
- Ho Jae Kim, Soon-Young Kwon, Hyoung-Nam Kim, Jae Hwui Bae, YoungSu Kim, and Namho Hur
- Issue Date
- 2019-06
- Citation
- International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2019, pp.1-4
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- A layered division multiplexing (LDM) system provides two or more services over one RF (radio frequency) channel. The LDM system draws much attention as a next generation broadcast communication system because it can provide 3 to 6 dB higher system gain than a time division multiplexing (TDM) or a frequency division multiplexing (FDM) systems. Many studies have been conducted to improve the transmission capacity and the performance of the two-layer LDM system. In order to achieve the additional transmission capacity, however, it is necessary to study terrestrial broadcasting system adopting LDM system with more than two layers. In this paper, we present the feasibility of a three-layer LDM system by analyzing its spectrum efficiency according to signal-to-noise ratios (SNRs) and comparing it with those of TDM / FDM systems.
- KSP Keywords
- Broadcasting system, Channel capacity, Communication system, Frequency division multiplexing, Layered Division Multiplexing, Radio-frequency, Signal-to-Noise, Spectrum efficiency, System gain, Terrestrial Broadcasting, Time division multiplexing