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Spread spectrum FDMA over high speed TDM transmission system for multimedia satellite communications

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4 Author(s)
Kazama, H. ; NTT Wireless Syst. Labs., Kanagawa, Japan ; Kobayashi, K. ; Otsu, T. ; Araki, K.

It is desired to realize high speed portable wireless terminals that offer a rapid network access anytime and anywhere. Satellite communications have the potential to realize such terminals because of its wide coverage area. This paper proposes a superposed spread spectrum FDMA (SS-FDMA) signaling over a high speed TDM signal transmission scheme to realize A4 size portable user terminals. Feasibility studies of a multimedia satellite communication system employing the proposed scheme are also described. Under present satellite performance and interference conditions, it is clarified that the system can achieve the following performance: the SS-FDMA signal speed for the access link is about 9.6 kbit/s, the TDM signal speed for the supply link is about 8 Mbit/s and the capacity of simultaneous SS-FDMA signal transmitting terminals is about 256

Published in:

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on  (Volume:3 )

Date of Conference:

2-4 Sep 1998

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