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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12379

Title: Effect of constellation design, pulse shaping and BCH codes on performance of M-ary QAM transmitted over gaussian bandlimited channels
Authors: Ali, Adel A.,
Al-Ruwais, Abdulaziz S.
Keywords: Computer simulation; Digital signal processing; Error correction; Signal filtering and prediction
Issue Date: 1992
Citation: Space Communications Volume 10, Issue 1, January 1992, Pages 39-52
Abstract: Computer simulation is used to study several issues relevant to the design of quadrature amplitude modulation (QAM) with M-ary alphabet. The QAM signals are transmitted over gaussian bandlimited channels. Signal constellations, pulse shaping, and error correcting codes are optimized for power and bandwidth efficiency. For each QAM channel, there exists an optimal transmission rate which depends on filtering, constellation design, pulse shaping, and equalization. Optimizing both the signal constellation and pulse shaping offer an appreciable gain, especially for higher signal alphabet and bandwidth efficiency. Finally, properly chosen BCH error-correcting code provides substantial coding gain especially at a high -ary and a high transmission rate.
URI: http://hdl.handle.net/123456789/12379
ISSN: 09248625
Appears in Collections:College of Engineering

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