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IEICE TRANSACTIONS on Electronics

An Efficient Data Transmission Technique for VLSI Systems Using Multiple-Valued Code-Division Multiple Access

Yasushi YUMINAKA, Shinya SAKAMOTO

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Summary :

This paper investigates multiple-valued code-division multiple access (MV-CDMA) techniques and circuits for intra/inter-chip communication to achieve efficient data transmission in VLSI systems. To address the problems caused by interconnection complexity, we transmit multiplexed signals inside LSI systems employing pseudo-random orthogonal m-sequences as information carriers. A new class of multiple-valued CDMA techniques for intra-chip communication is discussed to demonstrate the feasibility of eliminating co-channel interference caused by a propagation delay of signals, e.g., clock skew. This paper describes the circuit configuration and performance evaluation of MV-CDMA systems for intra-chip communication. We first explain the principle of MV-CDMA technique, and then propose a bidirectional current-mode CMOS technique to realize compact correlation circuits for CDMA. Finally, we show the Spice and MATLAB simulation results of MV-CDMA systems, which indicate the excellent capabilities of eliminating co-channel interference.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.8 pp.1581-1587
Publication Date
2002/08/01
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on High-Performance Analog Integrated Circuits)
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