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A Code-Division Multiplexing Technique for Efficient Data Transmission in VLSI Systems
Yasushi YUMINAKA Kazuhiko ITOH Yoshisato SASAKI Takafumi AOKI Tatsuo HIGUCHI
IEICE TRANSACTIONS on Electronics
Publication Date: 1999/09/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Integrated Electronics and New System Paradigms)
Category: Non-Binary Architectures
VLSI systems, code division multiplexing, m-sequence, new paradigm computing, spread-spectrum image processing,
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This paper proposes applications of a code-division multiplexing technique to VLSI systems free from interconnection problems. We employ a pseudo-random orthogonal m-sequence carrier as a multiplexable information carrier to achieve efficient data transmission. Using orthogonal property of m-sequences, we can multiplex several computational activities into a single circuit, and execute in parallel using multiplexed data transmission with reduced interconnection. Also, randomness of m-sequences offers the high tolerance to interference (jamming), and suppression of dynamic range of signals while maintaining a sufficient signal-to-noise ratio (SNR). We demonstrate application examples of multiplex computing circuits, neural networks, and spread-spectrum image processing to show the advantages.