A Mixed-Signal Integrated Circuit for FM-DCSK Modulation.

Authors :: Delgado-Restituto, Manuel
Acosta, Antonio J.
Rodríguez-Vázquez, Angel
Source :: IEEE Journal of Solid-State Circuits; Jul2005, Vol. 40 Issue 7, p1460-1471, 12p, 13 Diagrams, 1 Chart, 12 Graphs
Publication Year :: 2005
Abstract: 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<superscript>-3</superscript> for E<subscript>b</subscript>/N<subscript>o</subscript> lower than 28 dB. [ABSTRACT FROM AUTHOR]