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Rate-adaptive modulation techniques for indoor wireless infrared links at bit rates of wide dynamic range

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2 Author(s)
Garda-Zambrana, A. ; Dpto. de Ingenieria de Comunicaciones, Malaga Univ., Spain ; Puerta-Notario, A.

A new and simple rate-adaptive transmission scheme for indoor unguided optical links is proposed. This scheme is based on the use of variable silence periods, allowing the increase of the peak-average optical power ratio, which is a favorable characteristic in wireless infrared communications using intensity modulation with direct detection. Here, it is applied to links operating at high bit rate initially, providing a signaling rate with a wide dynamic range and requiring a very low-complexity implementation. The authors compare this scheme in terms of performance and complexity with the scheme proposed by the IrDA, which is based on repetition coding and pulse-position modulation

Published in:

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd  (Volume:4 )

Date of Conference:

2001