Transmission of 37.6-GHz QPSK wireless data over 12.8-km fiber with remote Millimeter-wave local oscillator delivery using a bi-directional SOA in a full-duplex system with 2.2-km CWDM fiber ring architecture

To cope with the growing trend of asymmetric data traffic, we introduce a novel network assisted full duplex (NAFD) for a millimeter wave system. NAFD can dynamically allocate the number of remote radio heads in the uplink mode or in the downlink mode, which can facilitate simultaneous uplink and downlink communications. In this manuscript, we use stochastic geometry to analyze the distribution of the signal-to-interference-plus-noise ratio and the data rate in a NAFD system. The numerical results verify the analysis and show that the NAFD outperforms the dynamic time division duplex system and the traditional flexible duplex system in terms of spectral efficiency.

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Transmission of Gb/s DPSK Millimeter-Wave Wireless Data Over Fiber Using Low-Cost Uncooled Devices With Remote 40-GHz Local Oscillator Delivery

Journal of Lightwave Technology ◽

10.1109/jlt.2008.917086 ◽

2008 ◽

Vol 26 (21) ◽

pp. 3490-3496 ◽

Cited By ~ 7

Author(s):

Tabassam Ismail ◽

Chin-Pang Liu ◽

John E. Mitchell ◽

Alwyn J. Seeds

Keyword(s):

Millimeter Wave ◽

Low Cost ◽

Local Oscillator ◽

Wireless Data

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Design and analysis of full duplex RoF system with efficient phase noise cancellation from a coherent RoF system

Journal of Optical Communications ◽

10.1515/joc-2020-0160 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Archa Chandrasenan ◽

Joseph Zacharias

Keyword(s):

Phase Noise ◽

Digital Signal ◽

Local Oscillator ◽

Coherent Detection ◽

Full Duplex ◽

Error Vector Magnitude ◽

Duplex System ◽

Processing Techniques ◽

Signal Processing Techniques ◽

Vector Magnitude

Abstract A energy efficient and high throughput bi directional radio over fiber (RoF) system is designed and analysed. In order to preserve the phase and the magnitude of the transmitted signals, coherent detection (CD) is employed and hence an optical local oscillator (OLO) source is used. A full duplex system is designed by utilising the same OLO. The phase noise in CD system is logically cancelled using digital signal processing techniques. 10 Gb/s 16-QAM at 5.5 GHz, 10 Gb/s 2-QAM at 2.5 GHz , 5 Gb/s QPSK at 5.5 Ghz and 10 Gb/s 4-QAM at 7.5 GHz are transmitted simultaneously over 25 km optical fiber(OF). It is analysed that any coherent RoF system can be designed to a full duplex system with acceptable log(BER) and error vector magnitude(EVM) values. The minimum values of log(BER) values obtained for 16-QAM, QPSK, 2-QAM and 4-QAM are −10, −8, −16 and −22, respectively.

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Millimeter-wave full duplex radios

Proceedings of the 26th Annual International Conference on Mobile Computing and Networking ◽

10.1145/3372224.3380879 ◽

2020 ◽

Cited By ~ 1

Author(s):

Vaibhav Singh ◽

Susnata Mondal ◽

Akshay Gadre ◽

Milind Srivastava ◽

Jeyanandh Paramesh ◽

...

Keyword(s):

Millimeter Wave ◽

Full Duplex

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Millimeter-wave dual-mode and dual-band switchable Gilbert up-conversion mixer in 65-nm CMOS process

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078721000155 ◽

2021 ◽

pp. 1-5

Author(s):

Fang Zhu ◽

Guo Qing Luo

Keyword(s):

Millimeter Wave ◽

Complementary Metal Oxide Semiconductor ◽

Local Oscillator ◽

Metal Oxide Semiconductor ◽

Oxide Semiconductor ◽

Dual Band ◽

Cmos Process ◽

Pumping Power ◽

Dual Mode ◽

Dc Power

Abstract In this paper, a millimeter-wave (MMW) dual-mode and dual-band switchable Gilbert up-conversion mixer in a commercial 65-nm complementary metal oxide semiconductor (CMOS) process is presented. By simply changing the bias, the proposed CMOS Gilbert up-conversion mixer can be switched between subharmonic and fundamental operation modes for MMW dual-band applications. With a low local oscillator pumping power of 3 dBm and low dc power consumption of 6 mW, the proposed CMOS Gilbert up-conversion mixer exhibits a measured conversion gain of −0.5 ± 1.5 dB from 37 to 50 GHz and 2.5 ± 1.5 dB from 17.5 to 32 GHz for the subharmonic and fundamental modes, respectively.

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