Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments

Ke Wang; Chan Tong Lam; Benjamin K. Ng

doi:10.1109/GCWkshps52748.2021.9681939

Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments

Ke Wang, Chan Tong Lam, Benjamin K. Ng

Faculty of Applied Sciences

Macao Polytechnic University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

18 Citations (Scopus)

Abstract

In this paper, we analyze the effects of different types of hardware impairments (HWI), including RIS-HWI, transceiver HWI, phase quantization errors and random failures, on vehicular communication system using reconfigurable intelligent surfaces (RIS) with Doppler mitigation. A closed-form expression for the received signal-to-noise-and-distortion ratio (SNDR) of an RIS-aided vehicular communication system with HWI is derived, and we also show that the average Doppler spread can be removed completely. The simulation results validate that RIS with HWI is able to bring promising average SNDR gain (e.g, 3.16 dB) of the received signal, while eliminating the average Doppler spread, and keeping the delay spread at a very low range. As a result, using the predictable positions of the vehicle, the phase shift set of RIS can be designed in advance, such that channel estimation is not necessary, resulting in lower implementation complexity.

Original language	English
Title of host publication	2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665423908
DOIs	https://doi.org/10.1109/GCWkshps52748.2021.9681939
Publication status	Published - 2021
Event	2021 IEEE Globecom Workshops, GC Wkshps 2021 - Madrid, Spain Duration: 7 Dec 2021 → 11 Dec 2021

Publication series

Name	2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings

Conference

Conference	2021 IEEE Globecom Workshops, GC Wkshps 2021
Country/Territory	Spain
City	Madrid
Period	7/12/21 → 11/12/21

Keywords

Doppler effect
delay spread
hardware impairments
high-mobility vehicular communication
reconfigurable intelligent surfaces

Access to Document

10.1109/GCWkshps52748.2021.9681939

Cite this

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title = "Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments",

abstract = "In this paper, we analyze the effects of different types of hardware impairments (HWI), including RIS-HWI, transceiver HWI, phase quantization errors and random failures, on vehicular communication system using reconfigurable intelligent surfaces (RIS) with Doppler mitigation. A closed-form expression for the received signal-to-noise-and-distortion ratio (SNDR) of an RIS-aided vehicular communication system with HWI is derived, and we also show that the average Doppler spread can be removed completely. The simulation results validate that RIS with HWI is able to bring promising average SNDR gain (e.g, 3.16 dB) of the received signal, while eliminating the average Doppler spread, and keeping the delay spread at a very low range. As a result, using the predictable positions of the vehicle, the phase shift set of RIS can be designed in advance, such that channel estimation is not necessary, resulting in lower implementation complexity.",

keywords = "Doppler effect, delay spread, hardware impairments, high-mobility vehicular communication, reconfigurable intelligent surfaces",

author = "Ke Wang and Lam, {Chan Tong} and Ng, {Benjamin K.}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE Globecom Workshops, GC Wkshps 2021 ; Conference date: 07-12-2021 Through 11-12-2021",

year = "2021",

doi = "10.1109/GCWkshps52748.2021.9681939",

language = "English",

series = "2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings",

address = "United States",

}

Wang, K, Lam, CT & Ng, BK 2021, Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments. in 2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings. 2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2021 IEEE Globecom Workshops, GC Wkshps 2021, Madrid, Spain, 7/12/21. https://doi.org/10.1109/GCWkshps52748.2021.9681939

Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments. / Wang, Ke; Lam, Chan Tong ; Ng, Benjamin K.
2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. (2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments

AU - Wang, Ke

AU - Lam, Chan Tong

AU - Ng, Benjamin K.

PY - 2021

Y1 - 2021

N2 - In this paper, we analyze the effects of different types of hardware impairments (HWI), including RIS-HWI, transceiver HWI, phase quantization errors and random failures, on vehicular communication system using reconfigurable intelligent surfaces (RIS) with Doppler mitigation. A closed-form expression for the received signal-to-noise-and-distortion ratio (SNDR) of an RIS-aided vehicular communication system with HWI is derived, and we also show that the average Doppler spread can be removed completely. The simulation results validate that RIS with HWI is able to bring promising average SNDR gain (e.g, 3.16 dB) of the received signal, while eliminating the average Doppler spread, and keeping the delay spread at a very low range. As a result, using the predictable positions of the vehicle, the phase shift set of RIS can be designed in advance, such that channel estimation is not necessary, resulting in lower implementation complexity.

AB - In this paper, we analyze the effects of different types of hardware impairments (HWI), including RIS-HWI, transceiver HWI, phase quantization errors and random failures, on vehicular communication system using reconfigurable intelligent surfaces (RIS) with Doppler mitigation. A closed-form expression for the received signal-to-noise-and-distortion ratio (SNDR) of an RIS-aided vehicular communication system with HWI is derived, and we also show that the average Doppler spread can be removed completely. The simulation results validate that RIS with HWI is able to bring promising average SNDR gain (e.g, 3.16 dB) of the received signal, while eliminating the average Doppler spread, and keeping the delay spread at a very low range. As a result, using the predictable positions of the vehicle, the phase shift set of RIS can be designed in advance, such that channel estimation is not necessary, resulting in lower implementation complexity.

KW - Doppler effect

KW - delay spread

KW - hardware impairments

KW - high-mobility vehicular communication

KW - reconfigurable intelligent surfaces

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U2 - 10.1109/GCWkshps52748.2021.9681939

DO - 10.1109/GCWkshps52748.2021.9681939

M3 - Conference contribution

AN - SCOPUS:85126093424

T3 - 2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings

BT - 2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

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Y2 - 7 December 2021 through 11 December 2021

ER -

Doppler Effect Mitigation using Reconfigurable Intelligent Surfaces with Hardware Impairments

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