Reducing LTE Uplink Transmission Energy by Allocating Resources

Mads Lauridsen, Anders Riis Jensen, Preben Mogensen

Research output: Contribution to journalConference article in JournalResearchpeer-review

27 Citations (Scopus)
2710 Downloads (Pure)

Abstract

The effect of physical resource block (PRB) allocation on an LTE modem's transmit power and total modem energy consumption is examined. In this paper the uplink resource blocks are scheduled in either a Frequency Division Multiple Access (FDMA) or Time Division Multiple Access (TDMA) manner, to determine if low transmission power & long transmission time or high transmission power & short transmission time is most energy efficient. It is important to minimize the LTE modem's energy consumption caused by uplink transmission because it affects phone battery time, and because researchers rarely focus on energy consumption when they optimize network controlled uplink transmission power parameters.

Simulations based on a simple traffic model and a power consumption model show the TDMA scheme, where one user is allocated all 48 PRBs in a 10 MHz channel, is at least 24 % more energy efficient than the FDMA like approach with 8 PRBs per user. Furthermore the TDMA scheme decreases the average transmission time with minimum 24 %.
Original languageEnglish
JournalI E E E V T S Vehicular Technology Conference. Proceedings
Number of pages5
ISSN1550-2252
DOIs
Publication statusPublished - 2011
EventVTC Fall 2011: VTC2011-Fall - San Francisco, United States
Duration: 5 Sep 20118 Sep 2011
Conference number: 74

Conference

ConferenceVTC Fall 2011
Number74
CountryUnited States
CitySan Francisco
Period05/09/201108/09/2011

Cite this

@inproceedings{1d38229bf7624325a243500cccd6067e,
title = "Reducing LTE Uplink Transmission Energy by Allocating Resources",
abstract = "The effect of physical resource block (PRB) allocation on an LTE modem's transmit power and total modem energy consumption is examined. In this paper the uplink resource blocks are scheduled in either a Frequency Division Multiple Access (FDMA) or Time Division Multiple Access (TDMA) manner, to determine if low transmission power & long transmission time or high transmission power & short transmission time is most energy efficient. It is important to minimize the LTE modem's energy consumption caused by uplink transmission because it affects phone battery time, and because researchers rarely focus on energy consumption when they optimize network controlled uplink transmission power parameters.Simulations based on a simple traffic model and a power consumption model show the TDMA scheme, where one user is allocated all 48 PRBs in a 10 MHz channel, is at least 24 {\%} more energy efficient than the FDMA like approach with 8 PRBs per user. Furthermore the TDMA scheme decreases the average transmission time with minimum 24 {\%}.",
author = "Mads Lauridsen and Jensen, {Anders Riis} and Preben Mogensen",
year = "2011",
doi = "10.1109/VETECF.2011.6092935",
language = "English",
journal = "I E E E V T S Vehicular Technology Conference. Proceedings",
issn = "1550-2252",
publisher = "IEEE",

}

Reducing LTE Uplink Transmission Energy by Allocating Resources. / Lauridsen, Mads; Jensen, Anders Riis; Mogensen, Preben.

In: I E E E V T S Vehicular Technology Conference. Proceedings, 2011.

Research output: Contribution to journalConference article in JournalResearchpeer-review

TY - GEN

T1 - Reducing LTE Uplink Transmission Energy by Allocating Resources

AU - Lauridsen, Mads

AU - Jensen, Anders Riis

AU - Mogensen, Preben

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N2 - The effect of physical resource block (PRB) allocation on an LTE modem's transmit power and total modem energy consumption is examined. In this paper the uplink resource blocks are scheduled in either a Frequency Division Multiple Access (FDMA) or Time Division Multiple Access (TDMA) manner, to determine if low transmission power & long transmission time or high transmission power & short transmission time is most energy efficient. It is important to minimize the LTE modem's energy consumption caused by uplink transmission because it affects phone battery time, and because researchers rarely focus on energy consumption when they optimize network controlled uplink transmission power parameters.Simulations based on a simple traffic model and a power consumption model show the TDMA scheme, where one user is allocated all 48 PRBs in a 10 MHz channel, is at least 24 % more energy efficient than the FDMA like approach with 8 PRBs per user. Furthermore the TDMA scheme decreases the average transmission time with minimum 24 %.

AB - The effect of physical resource block (PRB) allocation on an LTE modem's transmit power and total modem energy consumption is examined. In this paper the uplink resource blocks are scheduled in either a Frequency Division Multiple Access (FDMA) or Time Division Multiple Access (TDMA) manner, to determine if low transmission power & long transmission time or high transmission power & short transmission time is most energy efficient. It is important to minimize the LTE modem's energy consumption caused by uplink transmission because it affects phone battery time, and because researchers rarely focus on energy consumption when they optimize network controlled uplink transmission power parameters.Simulations based on a simple traffic model and a power consumption model show the TDMA scheme, where one user is allocated all 48 PRBs in a 10 MHz channel, is at least 24 % more energy efficient than the FDMA like approach with 8 PRBs per user. Furthermore the TDMA scheme decreases the average transmission time with minimum 24 %.

U2 - 10.1109/VETECF.2011.6092935

DO - 10.1109/VETECF.2011.6092935

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