Power consumption of Wi-Fi transceivers

Benali, Wissem; Bot, Marie Le; Langlais, Charlotte; Kerouedan, Sylvie

doi:10.1109/iswcs.2016.7600903

Cited by 4 publications

(2 citation statements)

References 10 publications

(9 reference statements)

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“…However, it should be noted that the high throughput in TS and PS receivers is made possible by the large power consumption at the ID. Several hundreds of mW of power are consumed for decoding those OFDM WiFi-like information signals at TS and PS receivers [78]. Additional power consumption for acquiring CSIT is required for the superimposed OFDM-SMF signal.…”

Section: B Prototypes and Experimentsmentioning

confidence: 99%

Foundations of Wireless Information and Power Transfer: Theory, Prototypes, and Experiments

Clerckx¹,

Kim²,

Choi³

et al. 2022

Proc. IEEE

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As wireless has disrupted communications, wireless will also disrupt the delivery of energy. Future wireless networks will be equipped with (radiative) wireless power transfer (WPT) capability and exploit radio waves to carry both energy and information through a unified wireless information and power transfer (WIPT). Such networks will make the best use of the RF spectrum and radiation as well as the network infrastructure for the dual purpose of communicating and energizing. Consequently those networks will enable trillions of future low-power devices to sense, compute, connect, and energize anywhere, anytime, and on the move. In this paper, we review the foundations of such future system. We first give an overview of the fundamental theoretical building blocks of WPT and WIPT. Then we discuss some stateof-the-art experimental setups and prototypes of both WPT and WIPT and contrast theoretical and experimental results. We draw a special attention to how the integration of RF, signal and system designs in WPT and WIPT leads to new theoretical and experimental design challenges for both microwave and communication engineers and highlight some promising solutions. Topics and experimental testbeds discussed include closed-loop WPT and WIPT architectures with beamforming, waveform, channel acquisition, and single/multi-antenna energy harvester, centralized and distributed WPT, reconfigurable metasurfaces and intelligent surfaces for WPT, transmitter and receiver architecture for WIPT, modulation, rate-energy trade-off. Moreover, we highlight important theoretical and experimental research directions to be addressed for WPT and WIPT to become a foundational technology of future wireless networks.

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Section: B Prototypes and Experimentsmentioning

confidence: 99%

Foundations of Wireless Information and Power Transfer: Theory, Prototypes, and Experiments

Clerckx¹,

Kim²,

Choi³

et al. 2022

Proc. IEEE

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show abstract

“…Other conditions include system complexity for system feasibility, spectrum efficiency (SE) and energy efficiency (EE) for efficient use of available bandwidth and energy as discussed in [12]. Since the CE-FrFT-OFDM uses FrFT in its operation with the same complexity and power consumption as FFT in a traditional OFDM [13], then, the CE-FrFT-OFDM has the same complexity and power consumption as the conventional OFDM with the exception of signal extension and its wrapping into CE. The fact that the additional operations in the CE-FrFT-OFDM are in the real-valued signal reduces extra memory requirement and power consumptions [14].…”

Section: Introductionmentioning

confidence: 99%

Constant envelope FrFT OFDM: Spectral and energy efficiency analysis

Dida

Huan

Tao

et al. 2019

JSEE

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Constant envelope with a fractional Fourier transformorthogonal frequency division multiplexing (CE-FrFT-OFDM) is a special case of a constant envelope OFDM (CE-OFDM), both being energy efficient wireless communication techniques with a 0 dB peak to average power ratio (PAPR). However, with the proper selection of fractional order, the first technique has a high bit error rate (BER) performance in the frequency-time selective channels. This paper performs further analysis of CE-FrFT-OFDM by examining its spectral efficiency (SE) and energy efficiency (EE) and compare to the famous OFDM and FrFT-OFDM techniques. Analytical and comprehensive simulations conducted show that, the CE-FrFT-OFDM has five times the EE of OFDM and FrFT-OFDM systems with a slightly less SE. Increasing CE-FrFT-OFDM's transmission power by increasing its amplitude to 1.7 increases its SE to match that of the OFDM and FrFT-OFDM systems while slightly reducing its EE by 20% to be four times that of OFDM and FrFT-OFDM systems. OFDM and FrFT-OFDM's amplitude fluctuations cause rapid changing output back-off (OBO) power requirements and further reduce power amplifier (PA) efficiency while CE-FrFT-OFDM stable operational linear range makes it a better candidate and outperforms the other techniques when their OBO exceeds 1.7. Higher EE and low BER in time-frequency selective channel are attracting features for CE-FrFT-OFDM deployment in mobile devices.

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Wireless Information and Power Transfer for IoT: Pulse Position Modulation, Integrated Receiver, and Experimental Validation

Kim

Clerckx

2022

IEEE Internet Things J.

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Power consumption of Wi-Fi transceivers

Cited by 4 publications

References 10 publications

Foundations of Wireless Information and Power Transfer: Theory, Prototypes, and Experiments

Foundations of Wireless Information and Power Transfer: Theory, Prototypes, and Experiments

Constant envelope FrFT OFDM: Spectral and energy efficiency analysis

Wireless Information and Power Transfer for IoT: Pulse Position Modulation, Integrated Receiver, and Experimental Validation

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