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A mixed-signal integrated circuit for FM-DCSK modulation

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3 Author(s)
Delgado-Restituto, M. ; Inst. of Microelectron. of Seville, Spain ; Acosta, A.J. ; Rodriguez-Vazquez, A.

This paper presents a mixed-signal application-specific integrated circuit (ASIC) for a frequency-modulated differential chaos shift keying (FM-DCSK) communication system. The chip is conceived to serve as an experimental platform for the evaluation of the FM-DCSK modulation scheme, and includes several programming features toward this goal. The operation of the ASIC is herein illustrated for a data rate of 500 kb/s and a transmission bandwidth in the range of 17 MHz. Using signals acquired from the test platform, bit error rate (BER) estimations of the overall FM-DCSK communication link have been obtained assuming wireless transmission at the 2.4-GHz ISM band. Under all tested propagation conditions, including multipath effects, the system obtains a BER =10-3 for Eb/No lower than 28 dB.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:40 ,  Issue: 7 )