{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T09:10:13Z","timestamp":1780391413254,"version":"3.54.1"},"reference-count":60,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T00:00:00Z","timestamp":1736726400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information"],"abstract":"<jats:p>Smart Cities leverage large networks of wirelessly connected nodes embedded with sensors and\/or actuators. Cellular IoT, such as NB-IoT and 5G RedCap, is often preferred for these applications thanks to its long range, extensive coverage, and good quality of service. In these networks, wireless communication dominates power consumption, motivating research on energy-efficient yet resilient and robust wireless systems. Many IoT use cases require low latency but cannot afford high-power radios continuously operating to accomplish this. In these cases, wake-up receivers (WURs) are a promising solution: while the high-power main radio (MR) is turned off\/idle, a lightweight WUR is continuously monitoring the RF channel; when it detects a wake-up sequence, the WUR will turn on the MR for subsequent communications. This article provides an overview of WUR hardware design considerations and challenges for 4G and 5G cellular IoT, summarizes the recent 3GPP activities to standardize NB-IoT and 5G wake-up signals, and presents a state-of-the-art WUR chip.<\/jats:p>","DOI":"10.3390\/info16010043","type":"journal-article","created":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T06:42:15Z","timestamp":1736750535000},"page":"43","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Low-Power Wake-Up Receivers for Resilient Cellular Internet of Things"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0454-2703","authenticated-orcid":false,"given":"Siyu","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, University of Michigan, 500 S. State Street, Ann Arbor, MI 48109, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-6533-0406","authenticated-orcid":false,"given":"Trevor J.","family":"Odelberg","sequence":"additional","affiliation":[{"name":"IEEE USA Congressional Fellow, 2001 L St, NW Suite 700, Washington, DC 20036, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-8834-9244","authenticated-orcid":false,"given":"Peter W.","family":"Crary","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, University of Michigan, 500 S. State Street, Ann Arbor, MI 48109, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-7699-4819","authenticated-orcid":false,"given":"Mason P.","family":"Obery","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, University of Michigan, 500 S. State Street, Ann Arbor, MI 48109, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9308-8392","authenticated-orcid":false,"given":"David D.","family":"Wentzloff","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, University of Michigan, 500 S. State Street, Ann Arbor, MI 48109, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2117","DOI":"10.1109\/COMST.2017.2728092","article-title":"Ultra Low Power Wake-Up Radios: A Hardware and Networking Survey","volume":"19","author":"Piyare","year":"2017","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.jnca.2015.09.008","article-title":"Applications of wireless sensor networks for urban areas: A survey","volume":"60","author":"Rashid","year":"2016","journal-title":"J. Netw. Comput. Appl."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Lea, R., and Blackstock, M. (2014, January 1\u20132). Smart Cities: An IoT-centric Approach. Proceedings of the 2014 International Workshop on Web Intelligence and Smart Sensing (IWWISS\u201914), Saint Etienne, France.","DOI":"10.1145\/2637064.2637096"},{"key":"ref_4","unstructured":"(2024, December 09). Study on Support of Reduced Capability NR Devices, 3GPP Std. TR 38.875. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/38_series\/38.875\/38875-h00.zip."},{"key":"ref_5","unstructured":"(2024, December 09). Study on Low-Power Wake-Up Signal and Receiver for NR, 3GPP Std. TR 38.869. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/38_series\/38.869\/38869-i00.zip."},{"key":"ref_6","unstructured":"(2024, December 09). Rohde & Schwarz. Let\u2019s Talk IoT\u2014Low Power Consumption with the Wake-Up Signal (WUS). Available online: https:\/\/www.rohde-schwarz.com\/se\/knowledge-center\/videos\/let-s-talk-iot-low-power-consumption-with-the-wake-up-signal-wus-video-detailpage_251220-819206.html."},{"key":"ref_7","unstructured":"(2024, December 09). LTE Paging in Extended DRX; 3GPP Std. TS36.304, Section 7.3. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/36_series\/36.304\/36304-i20.zip."},{"key":"ref_8","unstructured":"(2024, December 09). LTE Discontinuous Reception (DRX); 3GPP Std. TS 36.321, Section 5.7. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/36_series\/36.321\/36321-i30.zip."},{"key":"ref_9","unstructured":"(2024, December 09). Radio Resource Control (RRC) Protocol Specification, 3GPP Std. TS 38.331. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/38_series\/38.331\/38331-i30.zip."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Liberg, O., Sundberg, M., Wang, E., Bergman, J., Sachs, J., and Wikstr\u00f6m, G. (2019). Cellular Internet of Things: From Massive Deployments to Critical 5G Applications, Academic Press.","DOI":"10.1016\/B978-0-12-812458-1.00010-1"},{"key":"ref_11","unstructured":"(2024, December 09). Low-Power Wake-Up Signal and Receiver for NR (LP-WUS\/WUR); 3GPP Work Item Description, RP-241824. Available online: https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/TSG_RAN\/TSGR_105\/Docs\/RP-241824.zip."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Huang, K.-K., Luna, R., Wentzloff, D.D., Rathonyi, B., Wang, Y.-P.E., Chen, J., Korhonen, J., and Tiri, H.L. (2024, January 9\u201313). NB-IoT Power-Saving Analysis with Wake-Up Signal and Wake-Up Receiver Implementation. Proceedings of the 2024 IEEE International Conference on Communications Workshops (ICC Workshops), Denver, CO, USA.","DOI":"10.1109\/ICCWorkshops59551.2024.10615698"},{"key":"ref_13","unstructured":"(2024, December 09). Narrowband Wake Up Signal Downlink; 3GPP Std. TS 36.211, Section 10.2. Available online: https:\/\/www.3gpp.org\/ftp\/Specs\/archive\/36_series\/36.211\/36211-i01.zip."},{"key":"ref_14","unstructured":"Ericsson (2024, December 09). RedCap\u2014Expanding the 5G Device Ecosystem for Consumers and Industries [White Paper]. Available online: https:\/\/www.ericsson.com\/en\/reports-and-papers\/white-papers\/redcap-expanding-the-5g-device-ecosystem-for-consumers-and-industries#:~:text=The%20value%20range%20for%20eDRX,devices%20in%20RRC%20Inactive%20mode."},{"key":"ref_15","unstructured":"Wentzloff, D.D. (2024, December 09). Low Power Radio Survey. Available online: www.eecs.umich.edu\/wics\/low_power_radio_survey.html."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1109\/MCOMSTD.0001.2400002","article-title":"3GPP Release 18 Wake-Up Receiver: Feature Overview and Evaluations","volume":"8","author":"Mozaffari","year":"2024","journal-title":"IEEE Commun. Stand. Mag."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Ren, H., Lyu, L., Chen, B., and Shi, C.-J.R. (2024, January 21\u201324). A -104dBm-Sensitivity Receiver with Shared Wireless LO and Envelope-Tracking Mixer Achieving -46dB SIR. Proceedings of the 2024 IEEE Custom Integrated Circuits Conference (CICC), Denver, CO, USA.","DOI":"10.1109\/CICC60959.2024.10528957"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Sun, J., Yang, C., Luo, Y., Dong, S., and Zhao, B. (2024, January 21\u201324). An Interference-Resilient 120-Degree-Apart Pseudo-I\/Q BLE-Compliant Wake-Up Receiver Achieving \u221221dB SIR, \u221294dBm Sensitivity, and 4\u2013D Wake-Up Signature. Proceedings of the 2024 IEEE Custom Integrated Circuits Conference (CICC), Denver, CO, USA.","DOI":"10.1109\/CICC60959.2024.10529061"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Lukas, C.J., Yahya, F.B., Huang, K.K., Boley, J., Truesdell, D.S., Breiholz, J., Wokhlu, A., Craig, K., Brown, J.K., and Fitting, A. (2023, January 19\u201323). 15.2 A 2.19\u00b5W Self-Powered SoC with Integrated Multimodal Energy Harvesting, Dual-Channel up to \u221292dBm WRX and Energy-Aware Subsystem. Proceedings of the 2023 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42615.2023.10067337"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Huang, K.-K., Brown, J.K., Collins, N., Sawyer, R.K., Yahya, F.B., Wang, A., Roberts, N.E., Calhoun, B.H., and Wentzloff, D.D. (2021, January 13\u201322). 21.3 A Fully Integrated 2.7\u00b5W -70.2dBm-Sensitivity Wake-Up Receiver with Charge-Domain Analog Front-End, -16.5dB-SIR, FEC and Cryptographic Checksum. Proceedings of the 2021 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42613.2021.9365806"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Sharemi, H.J., and Bakhtiar, M.S. (2023, January 23\u201326). A 12.2\u03bcW Interference Robust Wake-Up Receiver. Proceedings of the 2023 IEEE Custom Integrated Circuits Conference (CICC), San Antonio, TX, USA.","DOI":"10.1109\/CICC57935.2023.10121277"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Bassirian, P., Duvvuri, D., Truesdell, D.S., Liu, N., Calhoun, B.H., and Bowers, S.M. (2020, January 16\u201320). 30.1 A Temperature-Robust 27.6nW \u221265dBm Wakeup Receiver at 9.6GHz X-Band. Proceedings of the 2020 IEEE International Solid-State Circuits Conference\u2014(ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC19947.2020.9063015"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Mangal, V., and Kinget, P.R. (2019, January 17\u201321). 28.1 A 0.42nW 434MHz -79.1dBm Wake-Up Receiver with a Time-Domain Integrator. Proceedings of the 2019 IEEE International Solid-State Circuits Conference\u2014(ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2019.8662418"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Mangal, V., and Kinget, P.R. (2019, January 2\u20134). A \u221280.9dBm 450MHz Wake-Up Receiver with Code-Domain Matched Filtering using a Continuous-Time Analog Correlator. Proceedings of the 2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Boston, MA, USA.","DOI":"10.1109\/RFIC.2019.8701822"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"309","DOI":"10.1109\/LSSC.2019.2956419","article-title":"A Highly Reconfigurable Bit-Level Duty-Cycled TRF Receiver Achieving \u2212106-dBm Sensitivity and 33-nW Average Power Consumption","volume":"2","author":"Moody","year":"2019","journal-title":"IEEE Solid-State Circuits Lett."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Rekhi, A.S., and Arbabian, A. (2018, January 11\u201315). A 14.5mm2 8nW \u221259.7dBm-sensitivity ultrasonic wake-up receiver for power-, area-, and interference-constrained applications. Proceedings of the 2018 IEEE International Solid-State Circuits Conference\u2014(ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2018.8310380"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Bishop, H.L., Dissanayake, A., Bowers, S.M., and Calhoun, B.H. (2021, January 13\u201322). 21.5 An Integrated 2.4GHz -91.5dBm-Sensitivity Within-Packet Duty-Cycled Wake-Up Receiver Achieving 2\u03bc W at 100ms Latency. Proceedings of the 2021 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42613.2021.9365825"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Kim, K.-M., Choi, K.-S., Jung, H., Yun, B., Kim, S., Oh, W., Lee, E.-S., Park, S., Jeong, E.-R., and Ko, J. (2022, January 20\u201326). An LPWAN Radio with a Reconfigurable Data\/Duty-Cycled-Wake-Up Receiver. Proceedings of the 2022 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42614.2022.9731641"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Thijssen, B.J., Klumperink, E.A.M., Quinlan, P., and Nauta, B. (2020, January 16\u201320). 30.4 A 370\u00b5W 5.5dB-NF BLE\/BT5.0\/IEEE 802.15.4-Compliant Receiver with >63dB Adjacent Channel Rejection at >2 Channels Offset in 22nm FDSOI. Proceedings of the 2020 IEEE International Solid-State Circuits Conference\u2014(ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC19947.2020.9062973"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Chang, Z., Xiao, Q., Wang, W., Luo, Y., and Zhao, B. (2023, January 19\u201323). A Passive Bidirectional BLE Tag Demonstrating Battery-Free Communication in Tablet\/Smartphone-to-Tag, Tag-to-Tablet\/Smartphone, and Tag-to-Tag Modes. Proceedings of the 2023 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42615.2023.10067538"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Wang, P.-H.P., and Mercier, P.P. (2019, January 17\u201321). 28.2 A 220\u03bcW -85dBm Sensitivity BLE-Compliant Wake-up Receiver Achieving -60dB SIR via Single-Die Multi- Channel FBAR-Based Filtering and a 4-Dimentional Wake-Up Signature. Proceedings of the 2019 IEEE International Solid-State Circuits Conference\u2014(ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2019.8662291"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Maksimovic, F., Wheeler, B., Burnett, D.C., Khan, O., Mesri, S., Suciu, I., Lee, L., Moreno, A., Sundararajan, A., and Zhou, B. (2019, January 9\u201314). A Crystal-Free Single-Chip Micro Mote with Integrated 802.15.4 Compatible Transceiver, sub-mW BLE Compatible Beacon Transmitter, and Cortex M0. Proceedings of the 2019 Symposium on VLSI Circuits, Kyoto, Japan.","DOI":"10.23919\/VLSIC.2019.8777971"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1351","DOI":"10.1109\/JSSC.2015.2420311","article-title":"A 45 \u00b5W Injection-Locked FSK Wake-Up Receiver With Frequency-to-Envelope Conversion for Crystal-Less Wireless Body Area Network","volume":"50","author":"Bae","year":"2015","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Shen, J., Zhu, F., Liu, Y., Liu, B., Shi, C., Huang, L., Xu, L., Tian, X., and Zhang, R. (2024, January 18\u201322). 23.1 A 44\u03bcW IoT Tag Enabling 1\u03bcs Synchronization Accuracy and OFDMA Concurrent Communication with Software-Defined Modulation. Proceedings of the 2024 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC49657.2024.10454346"},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Ji, X., Zhao, J., Rhee, W., and Wang, Z. (2024, January 16\u201318). A 2.3nJ\/b 32-APSK Polar Phase-Tracking Receiver with Two-Point Injection Technique. Proceedings of the 2024 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Washington, DC, USA.","DOI":"10.1109\/RFIC61187.2024.10599980"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Bialek, H., Johnston, M., and Natarajan, A. (2023, January 19\u201323). 31.8 A 0.4-to-0.95GHz Distributed N-Path Noise-Cancelling Ultra-Low-Power RX with Integrated Passives Achieving \u221285dBm\/100kb\/s Sensitivity, \u221241dB SIR and 174dB RX FoM in 22nm CMOS. Proceedings of the 2023 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42615.2023.10067338"},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Ye, D., van der Zee, R., and Nauta, B. (February, January 31). 26.2 An Ultra-Low-Power receiver using transmitted-reference and shifted limiters for in-band interference resilience. Proceedings of the 2016 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2016.7418095"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Vidojkovic, M., Huang, X., Wang, X., Zhou, C., Ba, A., Lont, M., Liu, Y.-H., Harpe, P., Ding, M., and Busze, B. (2014, January 9\u201313). 9.7 A 0.33nJ\/b IEEE802.15.6\/proprietary-MICS\/ISM-band transceiver with scalable data-rate from 11kb\/s to 4.5Mb\/s for medical applications. Proceedings of the 2014 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2014.6757386"},{"key":"ref_39","unstructured":"(2021). IEEE Std 802.11ba-2021 (Amendment to IEEE Std 802.11-2020 as amendment by IEEE Std 802.11ax-2021, and IEEE Std 802.11ay-2021); IEEE Standard for Information Technology\u2014Telecommunications and Information Exchange between Systems\u2014Local and Metropolitan Area Networks-Specific Requirements\u2014Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications\u2014Amendment 3: Wake-Up Radio Operation, IEEE."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1109\/TGCN.2020.2970312","article-title":"Interference-Free OFDM Embedding of Wake-Up Signals for Low-Power Wake-Up Receivers","volume":"4","author":"Mazloum","year":"2020","journal-title":"IEEE Trans. Green Commun. Netw."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Skrimponis, P., Mirfarshbafan, S.H., Studer, C., and Rangan, S. (2020, January 1\u20135). Power Efficient Multi-Carrier Baseband Processing for 5G and 6G Wireless. Proceedings of the 2020 54th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA.","DOI":"10.1109\/IEEECONF51394.2020.9443544"},{"key":"ref_42","unstructured":"(2024, December 09). Third Generation Partnership Project R1\u20132407492. RAN1#118 Final Summary of Discussion on LP-WUS and LP-SS Design Vivo. Available online: https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG1_RL1\/TSGR1_118\/Docs\/R1-2407492.zip."},{"key":"ref_43","unstructured":"(2024, December 09). Third Generation Partnership Project R1\u20132409308. RAN1#118bis Final Summary of Discussion on LP-WUS and LP-SS Design Vivo. Available online: https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG1_RL1\/TSGR1_118b\/Docs\/R1-2409308.zip."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Wentzloff, D.D., Alghaihab, A., and Im, J. (2020, January 22\u201325). Ultra-Low Power Receivers for IoT Applications: A Review. Proceedings of the 2020 IEEE Custom Integrated Circuits Conference (CICC), Boston, MA, USA.","DOI":"10.1109\/CICC48029.2020.9075938"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"144","DOI":"10.1109\/OJSSCS.2022.3215099","article-title":"Low-Power RF Wake-Up Receivers: Analysis, Tradeoffs, and Design","volume":"2","author":"Mercier","year":"2022","journal-title":"IEEE Open J. Solid-State Circuits Soc."},{"key":"ref_46","unstructured":"Razavi, B. (2011). RF Microelectronics, Prentice Hall Press. [2nd ed.]."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"2149","DOI":"10.1109\/JSSC.2019.2912710","article-title":"Interference Robust Detector-First Near-Zero Power Wake-Up Receiver","volume":"54","author":"Moody","year":"2019","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Roberts, N.E., Craig, K., Shrivastava, A., Wooters, S.N., Shakhsheer, Y., Calhoun, B.H., and Wentzloff, D.D. (February, January 31). 26.8 A 236nW \u221256.5dBm-sensitivity bluetooth low-energy wakeup receiver with energy harvesting in 65nm CMOS. Proceedings of the 2016 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2016.7418101"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"744","DOI":"10.1109\/TMTT.2021.3127550","article-title":"A 184-nW, \u221278.3-dBm Sensitivity Antenna-Coupled Supply, Temperature, and Interference-Robust Wake-Up Receiver at 4.9 GHz","volume":"70","author":"Shen","year":"2022","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_50","doi-asserted-by":"crossref","unstructured":"Wang, P.-H.P., Jiang, H., Gao, L., Sen, P., Kim, Y.-H., Rebeiz, G.M., Mercier, P.P., and Hall, D. (2017, January 11\u201314). A 400 MHz 4.5 nW \u221263.8 dBm sensitivity wake-up receiver employing an active pseudo-balun envelope detector. Proceedings of the ESSCIRC 2017\u201443rd IEEE European Solid State Circuits Conference, Leuven, Belgium.","DOI":"10.1109\/ESSCIRC.2017.8094519"},{"key":"ref_51","doi-asserted-by":"crossref","unstructured":"Jiang, H., Wang, P.-H.P., Gao, L., Sen, P., Kim, Y.-H., Rebeiz, G.M., Hall, D.A., and Mercier, P.P. (2017, January 5\u20139). 24.5 A 4.5nW wake-up radio with \u221269dBm sensitivity. Proceedings of the 2017 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2017.7870438"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1508","DOI":"10.1109\/JSSC.2022.3214226","article-title":"A 0.6\u20131.8-mW 3.4-dB NF Mixer-First Receiver With an N-Path Harmonic-Rejection Transformer-Mixer","volume":"58","author":"Weinreich","year":"2023","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"1151","DOI":"10.1109\/JSSC.2019.2957651","article-title":"An 802.11ba-Based Wake-Up Radio Receiver With Wi-Fi Transceiver Integration","volume":"55","author":"Liu","year":"2020","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"2678","DOI":"10.1109\/JSSC.2009.2027937","article-title":"Analysis and Optimization of Current-Driven Passive Mixers in Narrowband Direct-Conversion Receivers","volume":"44","author":"Mirzaei","year":"2009","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"2696","DOI":"10.1109\/JSSC.2010.2077151","article-title":"A Passive Mixer-First Receiver With Digitally Controlled and Widely Tunable RF Interface","volume":"45","author":"Andrews","year":"2010","journal-title":"IEEE J. Solid-State Circuits"},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Dissanayake, A., Moody, J., Bishop, H.L., Truesdell, D., Muhlbauer, H., Lu, R., Gao, A., Gong, S., Calhoun, B.H., and Bowers, S.M. (2020, January 22\u201325). A- 108dBm Sensitivity, -28dB SIR, 130nW to 41\u00b5W, Digitally Reconfigurable Bit-Level Duty-Cycled Wakeup and Data Receiver. Proceedings of the 2020 IEEE Custom Integrated Circuits Conference (CICC), Boston, MA, USA.","DOI":"10.1109\/CICC48029.2020.9075907"},{"key":"ref_57","doi-asserted-by":"crossref","unstructured":"Moosavifar, M., Im, J., Odelberg, T., and Wentzloff, D. (2022, January 20\u201326). A 110\u00b5W 2.5kb\/s \u2212103dBm-Sensitivity Dual-Chirp Modulated ULP Receiver Achieving \u221241dB SIR. Proceedings of the 2022 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.","DOI":"10.1109\/ISSCC42614.2022.9731616"},{"key":"ref_58","doi-asserted-by":"crossref","unstructured":"Shirazi, A.H.M., Lavasani, H.M., Sharifzadeh, M., Rajavi, Y., Mirabbasi, S., and Taghivand, M. (May, January 30). A 980\u03bcW 5.2dB-NF current-reused direct-conversion bluetooth-low-energy receiver in 40nm CMOS. Proceedings of the 2017 IEEE Custom Integrated Circuits Conference (CICC), Austin, TX, USA.","DOI":"10.1109\/CICC.2017.7993647"},{"key":"ref_59","doi-asserted-by":"crossref","unstructured":"Selvakumar, A., Zargham, M., and Liscidini, A. (2015, January 22\u201326). 13.6 A 600\u03bcW Bluetooth low-energy front-end receiver in 0.13\u03bcm CMOS technology. Proceedings of the 2015 IEEE International Solid-State Circuits Conference\u2014(ISSCC) Digest of Technical Papers, San Francisco, CA, USA.","DOI":"10.1109\/ISSCC.2015.7063017"},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Odelberg, T.J., Im, J., Moosavifar, M., and Wentzloff, D.D. (2024, January 19\u201322). A Fully Integrated NB-IoT Wake-Up Receiver Utilizing An Optimized OFDM 12-Point FFT Wake-Up Engine. Proceedings of the 2024 IEEE International Symposium on Circuits and Systems (ISCAS), Singapore.","DOI":"10.1109\/ISCAS58744.2024.10558577"}],"container-title":["Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2078-2489\/16\/1\/43\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T10:27:48Z","timestamp":1759919268000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2078-2489\/16\/1\/43"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,1,13]]},"references-count":60,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2025,1]]}},"alternative-id":["info16010043"],"URL":"https:\/\/doi.org\/10.3390\/info16010043","relation":{},"ISSN":["2078-2489"],"issn-type":[{"value":"2078-2489","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,1,13]]}}}