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Journal Article
Self-Interference Cancellation for Shared Band Transmission in Nonlinear Satellite Communication Channels
- Authors
- Sooyeob Jung, Joon Gyu Ryu, Deock-Gil Oh, Heejung Yu
- Issue Date
- 2017-12
- Citation
- ETRI Journal, v.39, no.6, pp.771-781
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- For efficient spectral utilization of satellite channels, a shared band transmission technique is introduced in this paper. A satellite transmits multiple received signals from a gateway and terminal in the common frequency band by superimposing the signals. To improve the power efficiency as well as the spectral efficiency, a travelling wave tube amplifier in the satellite should operate near the saturation level. This causes a nonlinear distortion of the superimposed transmit signal. Without mitigating this nonlinear effect, the self-interference cannot be properly cancelled and the desired signal cannot be demodulated. Therefore, an adaptive compensation scheme for nonlinearity is herein proposed with the proper operation scenario. It is shown through simulations that the proposed shared band transmission approach with nonlinear compensation and self-interference cancellation can achieve an acceptable system performance in nonlinear satellite channels.
- KSP Keywords
- Adaptive compensation, Compensation scheme, Nonlinear effect(NLE), Power Efficiency, Satellite channel, Saturation level, Self-Interference Cancellation, Spectral efficiency(SE), System performance, communication channel, frequency band
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
