Title :
A feedback-loop type transmission power control for low speed TDMA satellite communication systems
Author :
Kazama, Hiroshi ; Atsugi, Takeo ; Umehira, Masahiro ; Kato, Shuzo
Author_Institution :
NTT, Yokosuka, Japan
Abstract :
A feedback-loop-type transmission power control (TXPC) scheme, coupled with first- and second-order prediction methods, is proposed, and the optimum control period and residual control error are analyzed. In order to minimize residual control error, the three main factors contributing to such error are analyzed. First, to minimize level detection error, a channel pseudo-error estimation method is proposed and analyzed experimentally for quasi-signal-level detection. Second, rain attenuation rates in Ka bands are measured and analyzed statistically. Finally, the optimum control period of the proposed TXPC scheme is analyzed. The simulation results for the prototype TXPC scheme show that a maximum residual control error of ±2.5 dB is achievable with an optimum control period of about 2 s
Keywords :
error detection; feedback; optimal control; satellite relay systems; telecommunications control; time division multiple access; EHF; Ka bands; SHF; channel pseudo-error estimation method; feedback-loop-type transmission power control; low speed TDMA satellite communication systems; optimum control period; quasi-signal-level detection; rain attenuation rates; residual control error; second-order prediction methods; Attenuation measurement; Communication system control; Control systems; Error correction; Hardware; Open loop systems; Power control; Rain; Satellite communication; Time division multiple access;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49749
