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In this paper, we propose a thin, flexible, polymer PTC sensor with a wide temperature measurement range. A polymer PTC sensor consists of several polymers and conductive filler and its resistivity changes with an increase in temperature. Conventionally, it has been proposed as a flexible temperature sensor. However, no research has yet achieved enough flexibility and a wide temperature measurement...
We propose a new 4D coded modulation format, 64SP-12QAM, with same SE as PM-8QAM and straightforwardly-switchable with PM-16QAM. We experimentally demonstrated over 0.2 dB better sensitivity for 64SP-12QAM compared to PM-8QAM, enabling a transmission reach extension to 6,000 km at 6b/s/Hz.
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