Home > Research > Publications & Outputs > On the spectral-energy efficiency and rate fair...

Electronic data

  • On the Spectral-Energy Efficiency and Rate Fairness Tradeoffs in Relay-Aided Cooperative OFDMA Networks (V32)-Double Column

    Rights statement: ©2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

    Accepted author manuscript, 388 KB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

Links

Text available via DOI:

View graph of relations

On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

Standard

On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems. / Song, Zhengyu; Ni, Qiang; Navaie, Keivan et al.
In: IEEE Transactions on Wireless Communications, Vol. 15, No. 9, 09.2016, p. 6342-6355.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

APA

Vancouver

Song Z, Ni Q, Navaie K, Hou S, Wu S. On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems. IEEE Transactions on Wireless Communications. 2016 Sept;15(9):6342-6355. Epub 2016 Jun 21. doi: 10.1109/TWC.2016.2583421

Author

Song, Zhengyu ; Ni, Qiang ; Navaie, Keivan et al. / On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems. In: IEEE Transactions on Wireless Communications. 2016 ; Vol. 15, No. 9. pp. 6342-6355.

Bibtex

@article{3032732a6b3749b6a30b8e18c29226a7,
title = "On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems",
abstract = "In resource constrained wireless systems, achieving higher spectral efficiency (SE) and energy efficiency (EE), and greater rate fairness are conflicting objectives. Here a general framework is presented to analyze the tradeoff among these three performance metrics in cooperative OFDMA systems with decode-and-forward (DF) relaying, where subcarrier pairing and allocation, relay selection, choice of transmission strategy, and power allocation are jointly considered. In our analytical framework, rate fairness is represented utilizing -fairness model and the resource allocation problem is formulated as a multiobjective optimization (MOO) problem. We then propose a cross-layer resource allocation algorithm across application and physical layers, and further devise a heuristic algorithm to tackle the computational complexity issue. The SE-EE tradeoff is characterized as a Pareto optimal set, and the efficiency and fairness tradeoff is investigated through the price of fairness (PoF). Simulations indicate that higher fairness results in a worse SE-EE tradeoff. It is also shown imposing fairness helps to reduce the outage probability. For a fixed number of relays, by increasing circuit power, the performance of SE-EE tradeoff is degraded. Interestingly, by increasing the number of relays, although the total circuit power is increased, the SE-EE tradeoff is not necessarily degraded. This is thanks to the extra degree of freedom provided in relay selection.",
author = "Zhengyu Song and Qiang Ni and Keivan Navaie and S. Hou and S. Wu",
note = "{\textcopyright}2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",
year = "2016",
month = sep,
doi = "10.1109/TWC.2016.2583421",
language = "English",
volume = "15",
pages = "6342--6355",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "9",

}

RIS

TY - JOUR

T1 - On the spectral-energy efficiency and rate fairness tradeoff in relay-aided cooperative OFDMA systems

AU - Song, Zhengyu

AU - Ni, Qiang

AU - Navaie, Keivan

AU - Hou, S.

AU - Wu, S.

N1 - ©2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 2016/9

Y1 - 2016/9

N2 - In resource constrained wireless systems, achieving higher spectral efficiency (SE) and energy efficiency (EE), and greater rate fairness are conflicting objectives. Here a general framework is presented to analyze the tradeoff among these three performance metrics in cooperative OFDMA systems with decode-and-forward (DF) relaying, where subcarrier pairing and allocation, relay selection, choice of transmission strategy, and power allocation are jointly considered. In our analytical framework, rate fairness is represented utilizing -fairness model and the resource allocation problem is formulated as a multiobjective optimization (MOO) problem. We then propose a cross-layer resource allocation algorithm across application and physical layers, and further devise a heuristic algorithm to tackle the computational complexity issue. The SE-EE tradeoff is characterized as a Pareto optimal set, and the efficiency and fairness tradeoff is investigated through the price of fairness (PoF). Simulations indicate that higher fairness results in a worse SE-EE tradeoff. It is also shown imposing fairness helps to reduce the outage probability. For a fixed number of relays, by increasing circuit power, the performance of SE-EE tradeoff is degraded. Interestingly, by increasing the number of relays, although the total circuit power is increased, the SE-EE tradeoff is not necessarily degraded. This is thanks to the extra degree of freedom provided in relay selection.

AB - In resource constrained wireless systems, achieving higher spectral efficiency (SE) and energy efficiency (EE), and greater rate fairness are conflicting objectives. Here a general framework is presented to analyze the tradeoff among these three performance metrics in cooperative OFDMA systems with decode-and-forward (DF) relaying, where subcarrier pairing and allocation, relay selection, choice of transmission strategy, and power allocation are jointly considered. In our analytical framework, rate fairness is represented utilizing -fairness model and the resource allocation problem is formulated as a multiobjective optimization (MOO) problem. We then propose a cross-layer resource allocation algorithm across application and physical layers, and further devise a heuristic algorithm to tackle the computational complexity issue. The SE-EE tradeoff is characterized as a Pareto optimal set, and the efficiency and fairness tradeoff is investigated through the price of fairness (PoF). Simulations indicate that higher fairness results in a worse SE-EE tradeoff. It is also shown imposing fairness helps to reduce the outage probability. For a fixed number of relays, by increasing circuit power, the performance of SE-EE tradeoff is degraded. Interestingly, by increasing the number of relays, although the total circuit power is increased, the SE-EE tradeoff is not necessarily degraded. This is thanks to the extra degree of freedom provided in relay selection.

U2 - 10.1109/TWC.2016.2583421

DO - 10.1109/TWC.2016.2583421

M3 - Journal article

VL - 15

SP - 6342

EP - 6355

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

IS - 9

ER -