TY - GEN
T1 - Mutual information and time-interleaved analog-to-digital conversion
AU - Singer, Andrew
AU - Bean, Andrew
AU - Choi, Jun Won
PY - 2010
Y1 - 2010
N2 - Analog to digital conversion is often a critical component of a digital communication link. However, the figures of merit that are used in the design of the components that comprise this step are more appropriate for signal reconstruction applications than for digital communication. This paper considers the design of time-interleaved analog-to-digital converters using the mutual information between the transmitted symbols and the outputs of the paths of the converter as a design criteria. Specific attention is paid to the sensitivity of the mutual information through the converter as a function of the relative sampling phases of the time-interleaved samplers. Mutual information is evaluated for a variety of converter strategies, channel conditions, and noise sources. It is shown that for oversampling converters, the optimal sampling phases not in general equispaced, as is conventionally assumed in converter design.
AB - Analog to digital conversion is often a critical component of a digital communication link. However, the figures of merit that are used in the design of the components that comprise this step are more appropriate for signal reconstruction applications than for digital communication. This paper considers the design of time-interleaved analog-to-digital converters using the mutual information between the transmitted symbols and the outputs of the paths of the converter as a design criteria. Specific attention is paid to the sensitivity of the mutual information through the converter as a function of the relative sampling phases of the time-interleaved samplers. Mutual information is evaluated for a variety of converter strategies, channel conditions, and noise sources. It is shown that for oversampling converters, the optimal sampling phases not in general equispaced, as is conventionally assumed in converter design.
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U2 - 10.1109/ITA.2010.5454084
DO - 10.1109/ITA.2010.5454084
M3 - Conference contribution
AN - SCOPUS:77952734980
SN - 9781424470143
T3 - 2010 Information Theory and Applications Workshop, ITA 2010 - Conference Proceedings
SP - 448
EP - 452
BT - 2010 Information Theory and Applications Workshop, ITA 2010 - Conference Proceedings
T2 - 2010 Information Theory and Applications Workshop, ITA 2010
Y2 - 31 January 2010 through 5 February 2010
ER -