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Radio-communications systems in indoor environments: performances of the channel equalization

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1 Author(s)
Casadevall, F.J. ; Univ. Politecnica de Catalunya, Barcelona, Spain

The performance of the diversity and equalization techniques in an indoor radio environment is analyzed. Four and 16 QAM have been considered. Based on experimental results, it is concluded that a system without protection has very limited performance. When the channel introduces a low level of distortion the diversity technique produces better performance than the equalizer technique, but if the channel introduces a high degree of intersymbol interference, then the equalizer techniques are slightly better than the diversity techniques. On the other hand, joint equalization and diversity techniques are an effective tool to combat the degrading effect introduced by the indoor channel. Improvements in system performance, with respect to a system without any protection, ranging from 10 to 100 have been obtained

Published in:

Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean

Date of Conference:

22-24 May 1991