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A communication scheme in which symbols are encoded by means of phase difference between transitions of signals on parallel wires is considered. A significant decrease in the reliability of such a channel is caused by capacitive crosstalk between adjacent wires. A more robust high-speed phase encoded channel can be designed by minimising its vulnerability to crosstalk noise. This paper investigates the impact of crosstalk on phase encoded transmission channels. A functional fault model is presented to formulate the problem. Three fault tolerant schemes are introduced which are based on information redundancy techniques and the partial order coding concept. These schemes are simulated with CADENCE using AMS CMOS 0.35?m process. Area overheads, performance and fault tolerant capability of those methods are compared. It is shown that a substantial improvement in the performance can be obtained for four wire channels when using the fault tolerant design approach, at the cost of 25% of information capacity per symbol.
Asynchronous operation, crosstalk, communication channels, Error-checking, Fault tolerance, information redundancy, Simulation, Performance, reliability and VLSI

A. Yakovlev and B. Halak, "Fault-Tolerant Techniques to Minimize the Impact of Crosstalk on Phase Encoded Communication Channels," in IEEE Transactions on Computers, vol. 57, no. , pp. 505-519, 2007.
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