Exploring Physical Frame Format Design and Synchronization Algorithm for Optical Communication

Frame Synchronization in Digital Communication Systems

This paper introduces the problem of frame synchronization in digital communication receiver and evaluates the performance of using different sequences for frame synchronization such as Barker, NeumanHofman and PN sequences. In this work we use a correlation rule based method where the receiver, after recovering phase value, the given input values are correlated with a sync pattern (marker) and...

tight frame approximation for multi-frames and super-frames

در این پایان نامه یک مولد برای چند قاب یا ابر قاب تولید شده تحت عمل نمایش یکانی تصویر برای گروه های شمارش پذیر گسسته بررسی خواهد شد. مثال هایی از این قاب ها چند قاب های گابور، ابرقاب های گابور و قاب هایی برای زیرفضاهای انتقال پایاست. نشان می دهیم که مولد چند قاب تنک نرمال شده (ابرقاب) یکتا وجود دارد به طوری که مینیمم فاصله را از ان دارد. همچنین مسایل مشابه برای قاب های دوگان مطرح شده و برخی ...

Duobinary Modulation Format in Optical Communication Systems

This paper presents the environment of the optical fiber and digital information transmission over optical fiber, using signal transformation technique called duobinary modulation technique. We propose a complete duobinary encoder and duobinary decoder that we tested in Matlab simulink R2014B. In the final part, it will be shown a comparison of duobinary modulation technique with on-off keying ...

FPGA Implementation of a Frame Synchronization Algorithm for Powerline Communications

This paper presents an FPGA implementation of a pilot–based time synchronization scheme employing orthogonal frequency division multiplexing for powerline communication channels. The functionality of the algorithm is analyzed and tested over a real powerline residential network. For this purpose, an appropriate transmitter circuit, implemented by an FPGA, and suitable coupling circuits are cons...

Optimal Frame Synchronization for . . .