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A Feedback-Loop Type Transmission Power Control for TDMA Satellite Communication Systems
Hiroshi KAZAMA Takeo ATSUGI Shuzo KATO
IEICE TRANSACTIONS on Communications
Publication Date: 1993/05/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Satellite Communications Networking and Applications)
TDMA satellite communication, transmission power control, feedback-loop, rain attenuation,
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This paper proposes a feedback-loop type transmission power control (TPC) scheme coupled with first and second order prediction methods and analyzes the optimum control period and residual control error. In order to minimize residual control error, the three main factors contributing to residual control error are analyzed. First, to detect accurately up-link rain attenuation, a channel quality detection method is proposed and analyzed experimentally for puseudo-error detection. Second, rain attenuation rates in Ka band are measured and analyzed statistically. Finally, the optimum control period of the proposed TPC scheme is analyzed. The simulation results on the prototype TPC system show a maximum of 4.5 dB residual control error is achievable with an optimum control period of about 1 second to 1.5 seconds.