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A D-band Multiplier-based OOK Transceiver with Supplementary Transistor Modeling in 65-nm Bulk CMOS Technology
摘要： A D-band on-off keying (OOK) transceiver chipset is fabricated in a 65-nm bulk CMOS technology as a low-cost and highly-integrative solution to short-distance wireless connectivity. Supplementary transistor modeling is performed for accurate circuit design at mm-wave frequencies. To overcome low transistor fmax and reduce DC power consumption, the transmitter employs a frequency-multiplier-based architecture with no power amplifier. The receiver adopts a non-coherent architecture consisting of a DC-coupled three-stage differential amplifier and an envelope detector. The OOK transmitter exhibits a measured output power of -9.8 dBm and on-off level difference of 13.2 dB at 134.1 GHz. The receiver shows a measured average responsivity of 4.1 kV/W and a noise equivalent power of 211.4 pW/Hz1/2 over all D-band frequencies. The DC power consumption of the transmitter and receiver are 76 mW and 32.5 mW, respectively. The transceiver is tested in both on-chip loopback and air-channel configurations, and demonstrates data transmission up to 10 Gbps and 2 Gbps at a distance of 0.03 m, respectively.
关键词： transceiver,transistor modeling,D-band,wireless communication,low-cost bulk CMOS,OOK
更新于2025-09-23 15:22:29
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[IEEE 2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) - Denpasar, Bali, Indonesia (2019.10.1-2019.10.4)] 2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) - Harvesting Solar Energy by Combining Thermal and Photovoltaic System in Fish Dryer
摘要： Bit-error rate measurements for ON-OFF keying modulation at multigigabit per second rates over a V-band wireless link are presented. Serial data-rates from 2.5 to 20 Gb/s were studied for a 231-1 bit random sequence. Error-free data transfer over a 0.3-m link was achieved at up to 10 Gb/s. Acceptable bit-error rates, <10?5 and 10?3, were measured at up to 1.5 m for 10- and 15-Gb/s data-rate, respectively. The performance was achieved using a transmitter that consists of an integrated wavelet generator, whereas the receiver was built from off-the-shelf waveguide components. The results demonstrate that very high data-rates may be achieved using binary modulation and short symbols generated in an efficient V-band transmitter. The system is benchmarked against state-of-the-art transceiver systems with multigigabit per second data-rates.
关键词： Multi-Gb/s,on-off keying (OOK),wireless communication
更新于2025-09-23 15:21:01
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[IEEE 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) - Xiamen, China (2019.12.17-2019.12.20)] 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) - Integration of FEC Channel-coding Schemes Based on the Bose-Chaudhuri-Hocquenghem (BCH) Code for WDM Fiber Optical Communication Systems
摘要： With the volumes of transmitted information growth, the task of increasing the noise immunity and reliability of data transmission networks arises. The presence of interference such as nonlinear loss, chromatic dispersion, polarization mode dispersion, and inter-channel interference decreases the performance of fiber optical communication systems. Forward Error Correction (FEC) codes are vital in optical communication systems to achieve highly efficient and highly reliable communication. The paper presents research on a simulation model where FEC channel-coding schemes based on the Bose-Chaudhuri-Hocquenghem (BCH) cycling block code are integrated with non-return-to-zero on-off-keying (NRZ-OOK) modulated wavelength division multiplexed (WDM) fiber optical communication systems. The results highlight the selection of coding parameters in the adopted FEC approach. In our paper, the BCH (255, 231), BCH (255, 223), and BCH (255,191) FEC channel-coding schemes are chosen for integration in the NRZ-OOK modulated WDM optical transmission system. The paper shows the main advantages and drawbacks of the selected FEC coding scheme and provides a comparison of the proposed schemes based on their main features, such as bit error ratio (BER), which were obtained through the simulations of 25 Gbit/s NRZ-OOK WDM fiber optical system. The dynamics of changes in BER was investigated using the Monte Carlo (MC) method for precise results. The paper shows that integration of FEC channel-coding schemes based on the BCH codes improves the noise immunity and reliability of the WDM Fiber Optical Communication Systems.
关键词： optical communication systems,BCH code,NRZ-OOK,WDM,FEC
更新于2025-09-23 15:21:01
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Performance evaluation for polarization shift keying modulation in atmospheric turbulence channel
摘要： The exponentiated Weibull (EW) distribution is adopted for all turbulence strengths when aperture averaging technology is applied. Firstly, the closed expression of the average bit error rate (BER) of a free space optical (FSO) system using polarization shift keying (POLSK) modulation under EW atmosphere turbulence model is derived. Then the effects of aperture averaging under different turbulence conditions described by the EW distribution are numerically studied with computer simulation, and the average BER of POLSK modulated system is compared with that of an on-off-keying (OOK) system. Numerical results show the effects of aperture averaging on the average BER under different turbulence strengths. The POLSK modulated FSO systems can offer better BER performance compared to OOK scheme.
关键词： average bit error rate,exponentiated Weibull distribution(EW),Polarization shift keying modulation(POLSK),aperture averaging,on-off-keying (OOK)
更新于2025-09-12 10:27:22
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[IEEE 2018 IEEE International Conference on Information Communication and Signal Processing (ICICSP) - Singapore, Singapore (2018.9.28-2018.9.30)] 2018 IEEE International Conference on Information Communication and Signal Processing (ICICSP) - A Load-Aware Dynamic TDMA Protocol for Terahertz Wireless NanoSensor Networks
摘要： Wireless NanoSensor Networks (WNSNs) is a new type of networks which combines nanotechnology and sensor networks, having promising applications in the biomedical, industrial, environmental and military fields. Due to the peculiarities of WNSNs, such as molecular absorption noise in the Terahertz channel and the limited capacities of nano-nodes, novel Medium Access Control (MAC) protocols are needed to regulate access to the channel and coordinate transmission orders among nano-nodes. In this paper, a load-aware dynamic TDMA (LAD-TDMA) protocol is proposed. This protocol is built on a novel pulsed-based communication scheme called TS-OOK and avoids symbol collisions to achieve high energy efficiency. LAD-TDMA adopts a dynamic TDMA- based time slot allocation mechanism according to the current number and corresponding traffic of source nodes, the channel. The transmission peculiarities of Terahertz performance of the protocol is evaluated and analyzed in terms of energy consumption, average end-to-end delay and average throughput, by using the NS3 simulation platform. Results show that LAD-TDMA is energy efficient and advantageous in average end-to-end delay and average throughput, which is proved to be suitable to support node-intensive and load- unbalanced WNSNs, by considering the properties of Terahertz band, energy limitation of nano-devices and nano- nodes’ traffic.
关键词： Terahertz,WNSNs,TS-OOK,TDMA,load-aware
更新于2025-09-09 09:28:46
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[IEEE 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Nara, Japan (2018.10.9-2018.10.12)] 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Clipped Signal and Signal Shaping to Achieve Co-existence of Next Generation PON and Current System
摘要： The broadband access, the passive optical access in particular, can provide television channels in the order of 100, which has a huge impact on the consumer electronics industry. We can increase the capacity and speed of optical signal and access networks PSK(Phase Shift Keying) signal can co-exist in the digital software PON(Passive Optical Network), where OOK is used in existing PON and PSK in the next generation system. The BER(Bit Error Rate) of co-existing PSK or QAM(Quadrature amplitude modulation) signals falls when the OOK signal extinction ratio is large. This problem can be offset by signal shaping. This paper focuses on a clipped signal sending scheme for low power optical access networks. The method removes the negative components from the modulated signal prior to optical signal conversion. This paper shows the received power vs BER performance can be improved by signal shaping even with clipped signals.
关键词： Existence ratio,clip,PON,PSK,OOK,signal shaping
更新于2025-09-04 15:30:14