Optimization and Improvement of a Method for Signal to Noise Ratio Estimator
Publish place: Third National Conference and First International Conference on Applied Research in Electrical, Mechanical and Mechatronics Engineering
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ELEMECHCONF03_0355
تاریخ نمایه سازی: 9 مرداد 1395
Abstract:
This paper is focused on the optimization of the physical layer of digital communication systems and it provides innovations for both multi and single-carrier systems. For single carrier systems we have proposed a method to optimize constellation design in presence of a strong distortion, such as the non linear distortion provided by satellites’ on board high power amplifier, then we developed a method to calculate the bit/symbol error rate related to a given constellation, achieving an improved accuracy with respect to the traditional Union Bound with no additional complexity. A low complexity Signal-to-Noise Ratio (SNR) estimator saves one-half of multiplication with respect to the Maximum Likelihood (ML) estimator, and it has similar estimation accuracy.
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Authors
Milad Daneshvar
Department of Telecommunication Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Nasser Parhizgar
Department of Telecommunication Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran