Comment on "Performance of Asynchronous Band-Limited DS/SSMA Systems"

Luis Miguel TAVARES  GonÇalo Nuno TAVARES  

IEICE TRANSACTIONS on Communications   Vol.E81-B   No.9   pp.1782-1784
Publication Date: 1998/09/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Mobile Communication
DS/SSMA,  auto-correlation,  raised-cosine,  

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This comment rectifies the auto-correlation function of the raised-cosine pulse shaping filter response derived in the above paper, giving its exact expression. We give, not only the exact solution for the auto-correlation taken at multiples of the chip period, Φ(rTc), but also for its entire domain, Φ(τ). Nevertheless, due to an approximation made in [1], the conclusions reached therein remain valid.