Ruin Theory for Dynamic Spectrum Allocation in LTE-U Networks

Aunas Manzoor; Nguyen H. Tran; Walid Saad; S. M.Ahsan Kazmi; Shashi Raj Pandey; Choong Seon Hong

doi:10.1109/LCOMM.2018.2890254

Ruin Theory for Dynamic Spectrum Allocation in LTE-U Networks

Aunas Manzoor, Nguyen H. Tran, Walid Saad, S. M.Ahsan Kazmi, Shashi Raj Pandey, Choong Seon Hong^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

15 Citations (Scopus)

Abstract

LTE in the unlicensed band (LTE-U) is a promising solution to overcome the scarcity of the wireless spectrum. However, to reap the benefits of LTE-U, it is essential to maintain its effective coexistence with WiFi systems. Such a coexistence, hence, constitutes a major challenge for LTE-U deployment. In this letter, the problem of unlicensed spectrum sharing among WiFi and LTE-U systems is studied. In particular, a fair time-sharing model based on the ruin theory is proposed to share redundant spectral resources from the unlicensed band with LTE-U without jeopardizing the performance of the WiFi system. Fairness among both WiFi and LTE-U is maintained by applying the concept of the probability of ruin. In particular, the probability of ruin is used to perform efficient duty-cycle allocation in LTE-U, so as to provide fairness to the WiFi system and to maintain certain the WiFi performance. Simulation results show that the proposed ruin-based algorithm provides better fairness to the WiFi system as compared to equal duty-cycle sharing among WiFi and LTE-U.

Original language	English
Article number	8594609
Journal	IEEE Communications Letters
Volume	23
Issue number	2
Pages (from-to)	366-369
Number of pages	4
ISSN	1089-7798
DOIs	https://doi.org/10.1109/LCOMM.2018.2890254
Publication status	Published - Feb 2019

Bibliographical note

Funding Information:
Manuscript received September 21, 2018; revised November 13, 2018; accepted December 9, 2018. Date of publication December 28, 2018; date of current version February 11, 2019. This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (NRF-2017R1A2A2A05000995). The associate editor coordinating the review of this paper and approving it for publication was K. Navaie. (Corresponding author: Choong Seon Hong.) A. Manzoor, S. R. Pandey, and C. S. Hong are with the Department of Computer Science and Engineering, Kyung Hee University, Yongin 446-701, South Korea (e-mail: aunasmanzoor@khu.ac.kr; shashiraj@khu.ac.kr; cshong@khu.ac.kr).

Funding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (NRF-2017R1A2A2A05000995).

Publisher Copyright:
© 1997-2012 IEEE.

Keywords

Chance-constrained optimization
LTE-U
resource allocation
ruin theory
surplus process
WiFi fairness

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title = "Ruin Theory for Dynamic Spectrum Allocation in LTE-U Networks",

abstract = "LTE in the unlicensed band (LTE-U) is a promising solution to overcome the scarcity of the wireless spectrum. However, to reap the benefits of LTE-U, it is essential to maintain its effective coexistence with WiFi systems. Such a coexistence, hence, constitutes a major challenge for LTE-U deployment. In this letter, the problem of unlicensed spectrum sharing among WiFi and LTE-U systems is studied. In particular, a fair time-sharing model based on the ruin theory is proposed to share redundant spectral resources from the unlicensed band with LTE-U without jeopardizing the performance of the WiFi system. Fairness among both WiFi and LTE-U is maintained by applying the concept of the probability of ruin. In particular, the probability of ruin is used to perform efficient duty-cycle allocation in LTE-U, so as to provide fairness to the WiFi system and to maintain certain the WiFi performance. Simulation results show that the proposed ruin-based algorithm provides better fairness to the WiFi system as compared to equal duty-cycle sharing among WiFi and LTE-U.",

keywords = "Chance-constrained optimization, LTE-U, resource allocation, ruin theory, surplus process, WiFi fairness",

author = "Aunas Manzoor and Tran, {Nguyen H.} and Walid Saad and Kazmi, {S. M.Ahsan} and Pandey, {Shashi Raj} and Hong, {Choong Seon}",

note = "Funding Information: Manuscript received September 21, 2018; revised November 13, 2018; accepted December 9, 2018. Date of publication December 28, 2018; date of current version February 11, 2019. This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (NRF-2017R1A2A2A05000995). The associate editor coordinating the review of this paper and approving it for publication was K. Navaie. (Corresponding author: Choong Seon Hong.) A. Manzoor, S. R. Pandey, and C. S. Hong are with the Department of Computer Science and Engineering, Kyung Hee University, Yongin 446-701, South Korea (e-mail: aunasmanzoor@khu.ac.kr; shashiraj@khu.ac.kr; cshong@khu.ac.kr). Funding Information: This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (NRF-2017R1A2A2A05000995). Publisher Copyright: {\textcopyright} 1997-2012 IEEE.",

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AU - Tran, Nguyen H.

AU - Saad, Walid

AU - Kazmi, S. M.Ahsan

AU - Pandey, Shashi Raj

AU - Hong, Choong Seon

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N2 - LTE in the unlicensed band (LTE-U) is a promising solution to overcome the scarcity of the wireless spectrum. However, to reap the benefits of LTE-U, it is essential to maintain its effective coexistence with WiFi systems. Such a coexistence, hence, constitutes a major challenge for LTE-U deployment. In this letter, the problem of unlicensed spectrum sharing among WiFi and LTE-U systems is studied. In particular, a fair time-sharing model based on the ruin theory is proposed to share redundant spectral resources from the unlicensed band with LTE-U without jeopardizing the performance of the WiFi system. Fairness among both WiFi and LTE-U is maintained by applying the concept of the probability of ruin. In particular, the probability of ruin is used to perform efficient duty-cycle allocation in LTE-U, so as to provide fairness to the WiFi system and to maintain certain the WiFi performance. Simulation results show that the proposed ruin-based algorithm provides better fairness to the WiFi system as compared to equal duty-cycle sharing among WiFi and LTE-U.

AB - LTE in the unlicensed band (LTE-U) is a promising solution to overcome the scarcity of the wireless spectrum. However, to reap the benefits of LTE-U, it is essential to maintain its effective coexistence with WiFi systems. Such a coexistence, hence, constitutes a major challenge for LTE-U deployment. In this letter, the problem of unlicensed spectrum sharing among WiFi and LTE-U systems is studied. In particular, a fair time-sharing model based on the ruin theory is proposed to share redundant spectral resources from the unlicensed band with LTE-U without jeopardizing the performance of the WiFi system. Fairness among both WiFi and LTE-U is maintained by applying the concept of the probability of ruin. In particular, the probability of ruin is used to perform efficient duty-cycle allocation in LTE-U, so as to provide fairness to the WiFi system and to maintain certain the WiFi performance. Simulation results show that the proposed ruin-based algorithm provides better fairness to the WiFi system as compared to equal duty-cycle sharing among WiFi and LTE-U.

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KW - surplus process

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JO - IEEE Communications Letters

JF - IEEE Communications Letters

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M1 - 8594609

ER -

Ruin Theory for Dynamic Spectrum Allocation in LTE-U Networks

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Keywords

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