Relay Type 1a in LTE-Advanced

Can it increase energy efficiency?

Goran Dimić, Dragana Bajić, Marko Beko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A comparison of energy efficiency of two-hop transmission via Type 1a relay node (RN) and the direct link in LTE-Advanced, between the same base station (BS) and user terminal (UE), is presented. We build upon an existing energy consumption model, which links the total transceiver power consumption as a function of transmitted power, channel loss along each of the three links, and PHY and protocol parameters. In the space of channel losses, we show equipotential planes of the energy consumption ratio in the transceivers' operating region. In the equivalent space of transmit powers, we show required power levels to enable certain constellation and coding rate pairs. Overlapping the two spaces quantifies the energy efficiency increase. The increase in energy efficiency by a single-digit multiplying factor is possible. It is achieved by maximizing transmit power along both relaying hops, and selecting the constellation size and code rate pair which maximizes data rate, subject to the reliability constraint.

Original languageEnglish
Title of host publication2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
ISBN (Electronic)978-1-4673-5225-3
DOIs
Publication statusPublished - 17 Oct 2014
Event31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014 - Beijing, China
Duration: 16 Aug 201423 Aug 2014

Conference

Conference31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014
CountryChina
CityBeijing
Period16/08/1423/08/14

Fingerprint

Energy efficiency
Transceivers
Energy utilization
Base stations
Electric power utilization

Keywords

  • CHALLENGES

Cite this

Dimić, G., Bajić, D., & Beko, M. (2014). Relay Type 1a in LTE-Advanced: Can it increase energy efficiency? In 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014 (pp. 1-4). [6929285] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIGASS.2014.6929285
Dimić, Goran ; Bajić, Dragana ; Beko, Marko. / Relay Type 1a in LTE-Advanced : Can it increase energy efficiency?. 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 1-4
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Dimić, G, Bajić, D & Beko, M 2014, Relay Type 1a in LTE-Advanced: Can it increase energy efficiency? in 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014., 6929285, Institute of Electrical and Electronics Engineers Inc., pp. 1-4, 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014, Beijing, China, 16/08/14. https://doi.org/10.1109/URSIGASS.2014.6929285

Relay Type 1a in LTE-Advanced : Can it increase energy efficiency? / Dimić, Goran; Bajić, Dragana; Beko, Marko.

2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 1-4 6929285.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A comparison of energy efficiency of two-hop transmission via Type 1a relay node (RN) and the direct link in LTE-Advanced, between the same base station (BS) and user terminal (UE), is presented. We build upon an existing energy consumption model, which links the total transceiver power consumption as a function of transmitted power, channel loss along each of the three links, and PHY and protocol parameters. In the space of channel losses, we show equipotential planes of the energy consumption ratio in the transceivers' operating region. In the equivalent space of transmit powers, we show required power levels to enable certain constellation and coding rate pairs. Overlapping the two spaces quantifies the energy efficiency increase. The increase in energy efficiency by a single-digit multiplying factor is possible. It is achieved by maximizing transmit power along both relaying hops, and selecting the constellation size and code rate pair which maximizes data rate, subject to the reliability constraint.

AB - A comparison of energy efficiency of two-hop transmission via Type 1a relay node (RN) and the direct link in LTE-Advanced, between the same base station (BS) and user terminal (UE), is presented. We build upon an existing energy consumption model, which links the total transceiver power consumption as a function of transmitted power, channel loss along each of the three links, and PHY and protocol parameters. In the space of channel losses, we show equipotential planes of the energy consumption ratio in the transceivers' operating region. In the equivalent space of transmit powers, we show required power levels to enable certain constellation and coding rate pairs. Overlapping the two spaces quantifies the energy efficiency increase. The increase in energy efficiency by a single-digit multiplying factor is possible. It is achieved by maximizing transmit power along both relaying hops, and selecting the constellation size and code rate pair which maximizes data rate, subject to the reliability constraint.

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Dimić G, Bajić D, Beko M. Relay Type 1a in LTE-Advanced: Can it increase energy efficiency? In 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 1-4. 6929285 https://doi.org/10.1109/URSIGASS.2014.6929285