Titlebook: Scrambling Techniques for Digital Transmission; Byeong Lee,Seok Chang Kim Book 1994 Springer-Verlag London Limited 1994 Discrete Sample Sc

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Digital Transmission and Scrambling form, and the transmission medium may be copper wire or optical fiber based. In either case, as long as the signals are conveyed in digital pulse stream over the transmission medium, it is called digital transmission.

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Fundamentals of Scrambling Techniques The scrambler performing this scrambling function can be implemented simply using a few shift registers and exclusive-OR gates; and the descramblers reconstructing the original bitstream out of the scrambled data stream has the same structure but with the reversed data flow. For a proper reconstruc

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Introduction to Frame Synchronous Scramblingr the synchronization of the SRGs it resets the SRG states to some prespecified states at every frame start. Due to this resetting operation, FSS is suitable for scrambling of framed signals, and the scrambling effect is better for larger-sized frames.

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Sequence Spacesce whose elements are sequences satisfying the relation specified by a characteristic polynomial. For a sequence space, there are two bases, namely, the elementary basis and the primary basis, which form the framework of the space. In addition, the polynomial expression of sequences renders a useful

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Multibit-Parallel Frame Synchronous Scramblingal case of the MPFSS since in the PFSS multiplexing is done single bit based. Multibit-interleaved multiplexing is a scheme widely used these days in lightwave-based digital transmissions such as SDH/SONET (see Chapter 9), and therefore the parallel scrambling in this environment -- that is, the MPF

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Applications to Scrambling in SDH/SONET TransmissionONET systems, which are the most typical lightwave transmission systems employing the FSS. We first describe the FSS operations used in the SDH and SONET systems along with the frame formats of their transmission signals STM-. and STS-.. Then, we consider how to apply the parallel FSS techniques to