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By converging the cyber world with the physical world, Cyber-Physical Systems (CPS) is expected to create a great impact on computer science and the society. This paper proposes several real-time building blocks for CPS infrastructures. As for real-time wireless LAN, the author compare various wireless communication paradigms and show that by deploying largest processing gain possible (i.e. lowest bit rate), DSSS-CDMA cell phone paradigm (i.e. each control loop occupies a CDMA channel between the remote station and the base station) achieves much higher reliability/robustness than main stream alternatives, such as IEEE 802.11, IEEE 802.15.4, and convolutional coding.
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