Predictor Antenna: A Technique to Boost the Performance of Moving Relays

Hao Guo; Behrooz Makki; Dinh Thuy Phan-Huy; Erik Dahlman; Mohamed-Slim Alouini; Tommy Svensson

doi:10.1109/MCOM.001.2001205

Predictor Antenna: A Technique to Boost the Performance of Moving Relays

Hao Guo, Behrooz Makki, Dinh Thuy Phan-Huy, Erik Dahlman, Mohamed-Slim Alouini, Tommy Svensson

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

In future wireless systems, a large number of users may access the networks via moving relays (MRs) installed on top of vehicles. One of the main challenges of MRs is rapid channel variation, which may make channel estimation and its following procedures difficult. To address these issues, various schemes are designed, among which the predictor antenna (PA) is a candidate. The PA setup refers to a system with two (sets of) antennas on top of a vehicle, where the PA(s) positioned in front of the vehicle is (are) utilized to predict the channel state information required for data transmission to the receive antennas aligned behind the PA. In this article, we introduce the concept and the potential of PA systems. Moreover, summarizing the field trials for PAs and the 3GPP attempts on (moving) relays, we compare the performance of different PA and non-PA methods for vehicle communications in both urban and rural areas with the PA setup backhauled through terrestrial or satellite technology, respectively. As we show, with typical parameter settings and vehicle speeds, a single-antenna PA-assisted setup can boost the backhaul throughput of MRs, compared to state-of-the-art open-loop schemes, by up to 50 percent.

Original language	English (US)
Pages (from-to)	80-86
Number of pages	7
Journal	IEEE Communications Magazine
Volume	59
Issue number	7
DOIs	https://doi.org/10.1109/MCOM.001.2001205
State	Published - Jul 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-08-12
Acknowledgements: This work was supported in part by VINNOVA (Swedish Government Agency for Innovation Systems) within the VINN Excellence Center ChaseOn. We thank Yigeng Zhang from the University of Houston for help with the illustrations.

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title = "Predictor Antenna: A Technique to Boost the Performance of Moving Relays",

abstract = "In future wireless systems, a large number of users may access the networks via moving relays (MRs) installed on top of vehicles. One of the main challenges of MRs is rapid channel variation, which may make channel estimation and its following procedures difficult. To address these issues, various schemes are designed, among which the predictor antenna (PA) is a candidate. The PA setup refers to a system with two (sets of) antennas on top of a vehicle, where the PA(s) positioned in front of the vehicle is (are) utilized to predict the channel state information required for data transmission to the receive antennas aligned behind the PA. In this article, we introduce the concept and the potential of PA systems. Moreover, summarizing the field trials for PAs and the 3GPP attempts on (moving) relays, we compare the performance of different PA and non-PA methods for vehicle communications in both urban and rural areas with the PA setup backhauled through terrestrial or satellite technology, respectively. As we show, with typical parameter settings and vehicle speeds, a single-antenna PA-assisted setup can boost the backhaul throughput of MRs, compared to state-of-the-art open-loop schemes, by up to 50 percent.",

author = "Hao Guo and Behrooz Makki and Phan-Huy, {Dinh Thuy} and Erik Dahlman and Mohamed-Slim Alouini and Tommy Svensson",

note = "KAUST Repository Item: Exported on 2021-08-12 Acknowledgements: This work was supported in part by VINNOVA (Swedish Government Agency for Innovation Systems) within the VINN Excellence Center ChaseOn. We thank Yigeng Zhang from the University of Houston for help with the illustrations.",

year = "2021",

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AU - Guo, Hao

AU - Makki, Behrooz

AU - Phan-Huy, Dinh Thuy

AU - Dahlman, Erik

AU - Alouini, Mohamed-Slim

AU - Svensson, Tommy

N1 - KAUST Repository Item: Exported on 2021-08-12 Acknowledgements: This work was supported in part by VINNOVA (Swedish Government Agency for Innovation Systems) within the VINN Excellence Center ChaseOn. We thank Yigeng Zhang from the University of Houston for help with the illustrations.

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N2 - In future wireless systems, a large number of users may access the networks via moving relays (MRs) installed on top of vehicles. One of the main challenges of MRs is rapid channel variation, which may make channel estimation and its following procedures difficult. To address these issues, various schemes are designed, among which the predictor antenna (PA) is a candidate. The PA setup refers to a system with two (sets of) antennas on top of a vehicle, where the PA(s) positioned in front of the vehicle is (are) utilized to predict the channel state information required for data transmission to the receive antennas aligned behind the PA. In this article, we introduce the concept and the potential of PA systems. Moreover, summarizing the field trials for PAs and the 3GPP attempts on (moving) relays, we compare the performance of different PA and non-PA methods for vehicle communications in both urban and rural areas with the PA setup backhauled through terrestrial or satellite technology, respectively. As we show, with typical parameter settings and vehicle speeds, a single-antenna PA-assisted setup can boost the backhaul throughput of MRs, compared to state-of-the-art open-loop schemes, by up to 50 percent.

AB - In future wireless systems, a large number of users may access the networks via moving relays (MRs) installed on top of vehicles. One of the main challenges of MRs is rapid channel variation, which may make channel estimation and its following procedures difficult. To address these issues, various schemes are designed, among which the predictor antenna (PA) is a candidate. The PA setup refers to a system with two (sets of) antennas on top of a vehicle, where the PA(s) positioned in front of the vehicle is (are) utilized to predict the channel state information required for data transmission to the receive antennas aligned behind the PA. In this article, we introduce the concept and the potential of PA systems. Moreover, summarizing the field trials for PAs and the 3GPP attempts on (moving) relays, we compare the performance of different PA and non-PA methods for vehicle communications in both urban and rural areas with the PA setup backhauled through terrestrial or satellite technology, respectively. As we show, with typical parameter settings and vehicle speeds, a single-antenna PA-assisted setup can boost the backhaul throughput of MRs, compared to state-of-the-art open-loop schemes, by up to 50 percent.

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Predictor Antenna: A Technique to Boost the Performance of Moving Relays

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