Tractable Resource Management with Uplink Decoupled Millimeter-Wave Overlay in Ultra-Dense Cellular Networks

Jihong Park; Seong Lyun Kim; Jens Zander

doi:10.1109/TWC.2016.2540626

Tractable Resource Management with Uplink Decoupled Millimeter-Wave Overlay in Ultra-Dense Cellular Networks

Jihong Park, Seong Lyun Kim, Jens Zander

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

82 Citations (Scopus)

Abstract

The forthcoming 5G cellular network is expected to overlay millimeter-wave (mmW) transmissions with the incumbent micro-wave (μW) architecture. The overall mm-μW resource management should, therefore, harmonize with each other. This paper aims at maximizing the overall downlink (DL) rate with a minimum uplink (UL) rate constraint, and concludes: mmW tends to focus more on DL transmissions while μW has high priority for complementing UL, under time-division duplex (TDD) mmW operations. Such UL dedication of μW results from the limited use of mmW UL bandwidth due to excessive power consumption and/or high peak-to-average power ratio (PAPR) at mobile users. To further relieve this UL bottleneck, we propose mmW UL decoupling that allows each legacy μW base station (BS) to receive mmW signals. Its impact on mm-μW resource management is provided in a tractable way by virtue of a novel closed-form mm-μW spectral efficiency (SE) derivation. In an ultra-dense cellular network (UDN), our derivation verifies mmW (or μW) SE is a logarithmic function of BS-to-user density ratio. This strikingly simple yet practically valid analysis is enabled by exploiting stochastic geometry in conjunction with real three-dimensional (3-D) building blockage statistics in Seoul, South Korea.

Original language	English
Article number	7430349
Pages (from-to)	4362-4379
Number of pages	18
Journal	IEEE Transactions on Wireless Communications
Volume	15
Issue number	6
DOIs	https://doi.org/10.1109/TWC.2016.2540626
Publication status	Published - 2016 Jun

Bibliographical note

Funding Information:
This work was supported in part by the National Research Foundation of Korea (NRF-2014R1A2A1A11053234) and in part by the Communication Policy Research Center (CPRC) support program supervised by the Institute for Information and Communications Technology Promotion (IITP-2015-H8201-15-1003), funded by the Ministry of Science, ICT, and Future Planning of Korea.

Publisher Copyright:
© 2016 IEEE.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/TWC.2016.2540626

Cite this

@article{1a2e27e8c9914e1091ae3d4d47198368,

title = "Tractable Resource Management with Uplink Decoupled Millimeter-Wave Overlay in Ultra-Dense Cellular Networks",

abstract = "The forthcoming 5G cellular network is expected to overlay millimeter-wave (mmW) transmissions with the incumbent micro-wave (μW) architecture. The overall mm-μW resource management should, therefore, harmonize with each other. This paper aims at maximizing the overall downlink (DL) rate with a minimum uplink (UL) rate constraint, and concludes: mmW tends to focus more on DL transmissions while μW has high priority for complementing UL, under time-division duplex (TDD) mmW operations. Such UL dedication of μW results from the limited use of mmW UL bandwidth due to excessive power consumption and/or high peak-to-average power ratio (PAPR) at mobile users. To further relieve this UL bottleneck, we propose mmW UL decoupling that allows each legacy μW base station (BS) to receive mmW signals. Its impact on mm-μW resource management is provided in a tractable way by virtue of a novel closed-form mm-μW spectral efficiency (SE) derivation. In an ultra-dense cellular network (UDN), our derivation verifies mmW (or μW) SE is a logarithmic function of BS-to-user density ratio. This strikingly simple yet practically valid analysis is enabled by exploiting stochastic geometry in conjunction with real three-dimensional (3-D) building blockage statistics in Seoul, South Korea.",

author = "Jihong Park and Kim, {Seong Lyun} and Jens Zander",

note = "Funding Information: This work was supported in part by the National Research Foundation of Korea (NRF-2014R1A2A1A11053234) and in part by the Communication Policy Research Center (CPRC) support program supervised by the Institute for Information and Communications Technology Promotion (IITP-2015-H8201-15-1003), funded by the Ministry of Science, ICT, and Future Planning of Korea. Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

month = jun,

doi = "10.1109/TWC.2016.2540626",

language = "English",

volume = "15",

pages = "4362--4379",

journal = "IEEE Transactions on Wireless Communications",

issn = "1536-1276",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

}

TY - JOUR

T1 - Tractable Resource Management with Uplink Decoupled Millimeter-Wave Overlay in Ultra-Dense Cellular Networks

AU - Park, Jihong

AU - Kim, Seong Lyun

AU - Zander, Jens

N1 - Funding Information: This work was supported in part by the National Research Foundation of Korea (NRF-2014R1A2A1A11053234) and in part by the Communication Policy Research Center (CPRC) support program supervised by the Institute for Information and Communications Technology Promotion (IITP-2015-H8201-15-1003), funded by the Ministry of Science, ICT, and Future Planning of Korea. Publisher Copyright: © 2016 IEEE.

PY - 2016/6

Y1 - 2016/6

N2 - The forthcoming 5G cellular network is expected to overlay millimeter-wave (mmW) transmissions with the incumbent micro-wave (μW) architecture. The overall mm-μW resource management should, therefore, harmonize with each other. This paper aims at maximizing the overall downlink (DL) rate with a minimum uplink (UL) rate constraint, and concludes: mmW tends to focus more on DL transmissions while μW has high priority for complementing UL, under time-division duplex (TDD) mmW operations. Such UL dedication of μW results from the limited use of mmW UL bandwidth due to excessive power consumption and/or high peak-to-average power ratio (PAPR) at mobile users. To further relieve this UL bottleneck, we propose mmW UL decoupling that allows each legacy μW base station (BS) to receive mmW signals. Its impact on mm-μW resource management is provided in a tractable way by virtue of a novel closed-form mm-μW spectral efficiency (SE) derivation. In an ultra-dense cellular network (UDN), our derivation verifies mmW (or μW) SE is a logarithmic function of BS-to-user density ratio. This strikingly simple yet practically valid analysis is enabled by exploiting stochastic geometry in conjunction with real three-dimensional (3-D) building blockage statistics in Seoul, South Korea.

AB - The forthcoming 5G cellular network is expected to overlay millimeter-wave (mmW) transmissions with the incumbent micro-wave (μW) architecture. The overall mm-μW resource management should, therefore, harmonize with each other. This paper aims at maximizing the overall downlink (DL) rate with a minimum uplink (UL) rate constraint, and concludes: mmW tends to focus more on DL transmissions while μW has high priority for complementing UL, under time-division duplex (TDD) mmW operations. Such UL dedication of μW results from the limited use of mmW UL bandwidth due to excessive power consumption and/or high peak-to-average power ratio (PAPR) at mobile users. To further relieve this UL bottleneck, we propose mmW UL decoupling that allows each legacy μW base station (BS) to receive mmW signals. Its impact on mm-μW resource management is provided in a tractable way by virtue of a novel closed-form mm-μW spectral efficiency (SE) derivation. In an ultra-dense cellular network (UDN), our derivation verifies mmW (or μW) SE is a logarithmic function of BS-to-user density ratio. This strikingly simple yet practically valid analysis is enabled by exploiting stochastic geometry in conjunction with real three-dimensional (3-D) building blockage statistics in Seoul, South Korea.

UR - http://www.scopus.com/inward/record.url?scp=84976312644&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84976312644&partnerID=8YFLogxK

U2 - 10.1109/TWC.2016.2540626

DO - 10.1109/TWC.2016.2540626

M3 - Article

AN - SCOPUS:84976312644

SN - 1536-1276

VL - 15

SP - 4362

EP - 4379

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

IS - 6

M1 - 7430349

ER -

Tractable Resource Management with Uplink Decoupled Millimeter-Wave Overlay in Ultra-Dense Cellular Networks

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this