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Energy-efficient resource and power allocation for uplink multi-user OFDM systems

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Energy-efficient resource and power allocation for uplink multi-user OFDM systems. / Khakurel, Suman; Musavian, Leila; Le-Ngoc, Tho.
Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on. IEEE, 2012. p. 357-361.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Khakurel, S, Musavian, L & Le-Ngoc, T 2012, Energy-efficient resource and power allocation for uplink multi-user OFDM systems. in Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on. IEEE, pp. 357-361. https://doi.org/10.1109/PIMRC.2012.6362810

APA

Khakurel, S., Musavian, L., & Le-Ngoc, T. (2012). Energy-efficient resource and power allocation for uplink multi-user OFDM systems. In Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on (pp. 357-361). IEEE. https://doi.org/10.1109/PIMRC.2012.6362810

Vancouver

Khakurel S, Musavian L, Le-Ngoc T. Energy-efficient resource and power allocation for uplink multi-user OFDM systems. In Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on. IEEE. 2012. p. 357-361 doi: 10.1109/PIMRC.2012.6362810

Author

Khakurel, Suman ; Musavian, Leila ; Le-Ngoc, Tho. / Energy-efficient resource and power allocation for uplink multi-user OFDM systems. Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on. IEEE, 2012. pp. 357-361

Bibtex

@inproceedings{3d7916892ab8439e89b4bcc963749110,
title = "Energy-efficient resource and power allocation for uplink multi-user OFDM systems",
abstract = "In this paper, we consider the problem of energy-efficient resource and power allocation in the uplink of multiuser multi-channel Orthogonal Frequency Division Multiplexing (OFDM) based systems subject to constraints on user equipment (UE) transmit power. This problem is non-deterministic polynomial-time hard and an optimum solution for a system with U users and N resource units requires a complexity of at least O(NUN). Using an iterative solution approach, we propose two sub-optimal, yet efficient, scheduling algorithms that maximize the energy efficiency (EE) considering both UE circuit power (Pc) and rate-dependent transmit power with an upper limit of Pmax. Simulation results show that the proposed algorithms provide near-optimal solutions with much lower computational burden of O(UN) and O(UN2/2). Further performance studies indicate that the proposed algorithms can offer an EE of more than 2 times with a throughput reduction of less than 13% as compared to the spectral-efficient greedy algorithm. Our studies also reveal that the EE is quickly increased with Pmax when ≪ Pc and then reach saturation as Pmax approaches Pc.",
author = "Suman Khakurel and Leila Musavian and Tho Le-Ngoc",
year = "2012",
month = sep,
day = "1",
doi = "10.1109/PIMRC.2012.6362810",
language = "English",
isbn = "9781467325660",
pages = "357--361",
booktitle = "Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on",
publisher = "IEEE",

}

RIS

TY - GEN

T1 - Energy-efficient resource and power allocation for uplink multi-user OFDM systems

AU - Khakurel, Suman

AU - Musavian, Leila

AU - Le-Ngoc, Tho

PY - 2012/9/1

Y1 - 2012/9/1

N2 - In this paper, we consider the problem of energy-efficient resource and power allocation in the uplink of multiuser multi-channel Orthogonal Frequency Division Multiplexing (OFDM) based systems subject to constraints on user equipment (UE) transmit power. This problem is non-deterministic polynomial-time hard and an optimum solution for a system with U users and N resource units requires a complexity of at least O(NUN). Using an iterative solution approach, we propose two sub-optimal, yet efficient, scheduling algorithms that maximize the energy efficiency (EE) considering both UE circuit power (Pc) and rate-dependent transmit power with an upper limit of Pmax. Simulation results show that the proposed algorithms provide near-optimal solutions with much lower computational burden of O(UN) and O(UN2/2). Further performance studies indicate that the proposed algorithms can offer an EE of more than 2 times with a throughput reduction of less than 13% as compared to the spectral-efficient greedy algorithm. Our studies also reveal that the EE is quickly increased with Pmax when ≪ Pc and then reach saturation as Pmax approaches Pc.

AB - In this paper, we consider the problem of energy-efficient resource and power allocation in the uplink of multiuser multi-channel Orthogonal Frequency Division Multiplexing (OFDM) based systems subject to constraints on user equipment (UE) transmit power. This problem is non-deterministic polynomial-time hard and an optimum solution for a system with U users and N resource units requires a complexity of at least O(NUN). Using an iterative solution approach, we propose two sub-optimal, yet efficient, scheduling algorithms that maximize the energy efficiency (EE) considering both UE circuit power (Pc) and rate-dependent transmit power with an upper limit of Pmax. Simulation results show that the proposed algorithms provide near-optimal solutions with much lower computational burden of O(UN) and O(UN2/2). Further performance studies indicate that the proposed algorithms can offer an EE of more than 2 times with a throughput reduction of less than 13% as compared to the spectral-efficient greedy algorithm. Our studies also reveal that the EE is quickly increased with Pmax when ≪ Pc and then reach saturation as Pmax approaches Pc.

U2 - 10.1109/PIMRC.2012.6362810

DO - 10.1109/PIMRC.2012.6362810

M3 - Conference contribution/Paper

SN - 9781467325660

SN - 9781467325691

SP - 357

EP - 361

BT - Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on

PB - IEEE

ER -