A 7.5-GHz Frequency-Hopping CDMA UWB Transceiver for Secure Multi-Sensor Connectivity
This brief describes an ultra-wideband (UWB) transceiver architecture that employs a frequency-hopping code-division multiple-access (FH-CDMA) scheme for secure multi-sensor connectivity with up to 18-channel capacity. By using distinct frequency-hopping (FH) patterns based on m-sequence, quantitati...
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| Vydané v: | IEEE transactions on circuits and systems. II, Express briefs Ročník 72; číslo 1; s. 163 - 167 |
|---|---|
| Hlavní autori: | , , , |
| Médium: | Journal Article |
| Jazyk: | English |
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New York
IEEE
01.01.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
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| ISSN: | 1549-7747, 1558-3791 |
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| Abstract | This brief describes an ultra-wideband (UWB) transceiver architecture that employs a frequency-hopping code-division multiple-access (FH-CDMA) scheme for secure multi-sensor connectivity with up to 18-channel capacity. By using distinct frequency-hopping (FH) patterns based on m-sequence, quantitative analysis and simulation results show that the FH-CDMA UWB system can support up to 18 users simultaneously sharing the same transmission band. The duty cycle control of a carrier signal for each FH cycle enables the transmitter to perform baseband clock synchronization with nano-second resolution. A prototype 7.5-GHz UWB transceiver is implemented in 65-nm CMOS. With the FH enabled, the transmitter meets the UWB spectrum mask. The receiver achieves a sensitivity of -91 dBm at 25 kb/s and exhibits <1-dB degradation when three users transmit signals simultaneously. |
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| AbstractList | This brief describes an ultra-wideband (UWB) transceiver architecture that employs a frequency-hopping code-division multiple-access (FH-CDMA) scheme for secure multi-sensor connectivity with up to 18-channel capacity. By using distinct frequency-hopping (FH) patterns based on m-sequence, quantitative analysis and simulation results show that the FH-CDMA UWB system can support up to 18 users simultaneously sharing the same transmission band. The duty cycle control of a carrier signal for each FH cycle enables the transmitter to perform baseband clock synchronization with nano-second resolution. A prototype 7.5-GHz UWB transceiver is implemented in 65-nm CMOS. With the FH enabled, the transmitter meets the UWB spectrum mask. The receiver achieves a sensitivity of –91 dBm at 25 kb/s and exhibits This brief describes an ultra-wideband (UWB) transceiver architecture that employs a frequency-hopping code-division multiple-access (FH-CDMA) scheme for secure multi-sensor connectivity with up to 18-channel capacity. By using distinct frequency-hopping (FH) patterns based on m-sequence, quantitative analysis and simulation results show that the FH-CDMA UWB system can support up to 18 users simultaneously sharing the same transmission band. The duty cycle control of a carrier signal for each FH cycle enables the transmitter to perform baseband clock synchronization with nano-second resolution. A prototype 7.5-GHz UWB transceiver is implemented in 65-nm CMOS. With the FH enabled, the transmitter meets the UWB spectrum mask. The receiver achieves a sensitivity of -91 dBm at 25 kb/s and exhibits <1-dB degradation when three users transmit signals simultaneously. |
| Author | Rhee, Woogeun Wang, Zhihua Wang, Bowen Lin, Luhua |
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| Cites_doi | 10.1109/JSSC.2018.2873586 10.1109/MILCOM.2003.1290242 10.1109/JSSC.2023.3322134 10.1109/TCSII.2024.3357066 10.1109/JSSC.2020.3030995 10.1109/JSSC.2015.2399451 10.1109/JSSC.2020.3005765 10.1109/RFIC.2018.8429022 10.1109/JSSC.2020.2991542 10.1109/ISSCC42614.2022.9731638 10.1109/JSSC.2019.2917837 10.1109/TCSI.2015.2512744 10.1109/JSSC.2011.2161214 10.1109/TCSI.2017.2704420 10.1109/TMTT.2012.2212027 10.1109/JSSC.2018.2878822 10.1109/VETEC.1992.245367 10.1109/ICCSN.2011.6014765 10.1109/isscc19947.2020.9063073 10.1109/TMTT.2022.3200108 |
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| SubjectTerms | Channel capacity Clock synchronization Code Division Multiple Access Code-division multiple-access (CDMA) Communication system security Frequency hopping frequency-hopping (FH) Multiaccess communication Radio frequency Receivers secure Symbols Synchronization transceiver Transceivers Transmitters ultra-wideband (UWB) Ultrawideband Wireless communication Wireless sensor networks |
| Title | A 7.5-GHz Frequency-Hopping CDMA UWB Transceiver for Secure Multi-Sensor Connectivity |
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