A Full-Duplex Radio Using a CMOS Non-Magnetic Circulator Achieving +95 dB Overall SIC
A Full-Duplex Radio Using a CMOS Non-Magnetic Circulator Achieving +95 dB Overall SIC
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使用 CMOS 非磁性环行器实现 95 dB 总体 SIC 的全双工无线电
DOI:
10.1109/usnc-ursi.2019.8861766
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Krishnaswamy, Harish
中科院分区:
文献类型:
--
作者:
Nagulu, Aravind;Chen, Tingjun;Zussman, Gil;Krishnaswamy, Harish
Full-duplex (FD) wireless is an emerging wireless communication paradigm where the transmitter and the receiver operate simultaneously at the same frequency. One major challenge in realizing FD wireless is the interference of the TX signal saturating the receiver, commonly referred to self-interference (SI). Traditionally, self-interference cancellation (SIC) is achieved in the antenna, RF/analog, and digital domains. In the antenna domain, SIC can be achieved using a pair of separate TX and RX antennas, or using a single antenna shared by the TX and RX through a magnetic circulator, which is usually bulky, expensive, and not integrable with CMOS. Recent advances, however, have shown the feasibility of realizing high-performance non-reciprocal circulators in CMOS based on spatio-temporal modulation. In this work, we demonstrate a high power handling FD radio using a USRP SDR which employs SIC (i) at the antenna interface using a watt-level power-handling CMOS integrated, magnetic-free circulator, (ii) in the RF domain using a compact RF canceler, and (iii) in the digital domain. Our prototyped FD radio achieves +95 dB overall SIC at +15dBm TX power level. We analyze the effects of the circulator TX-RX non-linearity on the total achievable SIC.
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影响因子:
5.4
作者:
Negar Reiskarimian;Jin Zhou;H. Krishnaswamy
通讯作者:
Negar Reiskarimian;Jin Zhou;H. Krishnaswamy
影响因子:
16.6
作者:
Dinc T;Tymchenko M;Nagulu A;Sounas D;Alu A;Krishnaswamy H
通讯作者:
Krishnaswamy H
DOI:
--
发表时间:
2016
期刊:
ACM Interational Symposium on Mobile Ad Hoc Networking and Computing
影响因子:
--
作者:
Tingjun Chen;Jin Zhou;N. Grimwood;R. Fogel;Jelena Marašević;H. Krishnaswamy;G. Zussman
通讯作者:
G. Zussman
DOI:
10.1109/tmtt.2018.2859244
发表时间:
2018-11-01
影响因子:
4.3
作者:
Nagulu, Aravind;Dinc, Tolga;Krishnaswamy, Hanish
通讯作者:
Krishnaswamy, Hanish
DOI:
10.1109/jsac.2014.2330193
发表时间:
2014-09-01
影响因子:
16.4
作者:
Sabharwal, Ashutosh;Schniter, Philip;Wichman, Risto
通讯作者:
Wichman, Risto