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- W3134992494 abstract "Cross-Technology Communication (CTC) is an emerging technique that enables direct interconnection among incompatible wireless technologies. However, CTC channels are inherently asymmetric because of either the one-way nature of emulation or the asymmetric communication range caused by the asymmetric transmission power. In this paper, we focus on establishing symmetric CTC over asymmetric CTC channels. The bottleneck is the short communication range from the low-power and narrow-band technology to the high-power and wide-band technology. To compensate the inevitable distortions, we take advantage of the channel asymmetry and construct chirps in WiFi Channel State Information (CSI) to extend the communication range from ZigBee to WiFi. We build the theoretical model of CSI chirp based CTC and design c-Chirp, a novel CTC from ZigBee to WiFi. Due to channel asymmetry and discreteness, the WiFi receiver can only observe partial and distorted CSI chirps. To cope with this issue, we design a matching based chirp decoding method as well as an adaptation algorithm to reliably decode the symbols. We further extend c-Chirp to one-to-multiple concurrent transmission scenario. The evaluation results show that c-Chirp can achieve a communication range of 60m, which is 6× longer than ZigFi, an existing representative CTC from ZigBee to WiFi." @default.
- W3134992494 created "2021-03-15" @default.
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- W3134992494 date "2021-06-01" @default.
- W3134992494 modified "2023-10-01" @default.
- W3134992494 title "<i>c-Chirp</i>: Towards Symmetric Cross-Technology Communication Over Asymmetric Channels" @default.
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- W3134992494 doi "https://doi.org/10.1109/tnet.2021.3061083" @default.
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