### Abstract

The cost-effective impact and fundamental limits of infrastructure support with rate-limited wired backhaul links (i.e., GreenInfra support), directly connecting base stations (BSS), are analyzed in a large-scale hybrid network of unit node density, where multiantenna BSS are deployed. We consider a general scenario such that the rate of each BS-to-BS link scales at an arbitrary rate relative to the number of randomly located wireless nodes $n$. For the operating regimes with respect to the number of BSS and the number of antennas at each BS, we first analyze the minimum rate of each backhaul link C_{BS}, required to guarantee the same throughput scaling as in the infinite-capacity backhaul link case. We then identify the operating regimes in which the required rate C_{BS} scales slower than n^{ϵ} for an arbitrarily small ϵ > 0 (i.e., the regimes where C_{BS} does not need to be infinitely large). We also show the case where our network with GreenInfra is fundamentally in the infrastructure-limited regime, in which the performance is limited by the rate of backhaul links. In addition, we derive a generalized throughput scaling law including the case where the rate of each backhaul link scales slower than C_{BS}. To validate the throughput scaling law for finite values of system parameters, numerical evaluation is also shown via computer simulations.

Original language | English |
---|---|

Article number | 7448815 |

Pages (from-to) | 1179-1191 |

Number of pages | 13 |

Journal | IEEE Journal on Selected Areas in Communications |

Volume | 34 |

Issue number | 5 |

DOIs | |

Publication status | Published - 2016 May 1 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Computer Networks and Communications
- Electrical and Electronic Engineering

### Cite this

*IEEE Journal on Selected Areas in Communications*,

*34*(5), 1179-1191. [7448815]. https://doi.org/10.1109/JSAC.2016.2551487

}

*IEEE Journal on Selected Areas in Communications*, vol. 34, no. 5, 7448815, pp. 1179-1191. https://doi.org/10.1109/JSAC.2016.2551487

**GreenInfra : Capacity of large-scale hybrid networks with cost-effective infrastructure.** / Jeong, Cheol; Shin, Won-Yong.

Research output: Contribution to journal › Article

TY - JOUR

T1 - GreenInfra

T2 - Capacity of large-scale hybrid networks with cost-effective infrastructure

AU - Jeong, Cheol

AU - Shin, Won-Yong

PY - 2016/5/1

Y1 - 2016/5/1

N2 - The cost-effective impact and fundamental limits of infrastructure support with rate-limited wired backhaul links (i.e., GreenInfra support), directly connecting base stations (BSS), are analyzed in a large-scale hybrid network of unit node density, where multiantenna BSS are deployed. We consider a general scenario such that the rate of each BS-to-BS link scales at an arbitrary rate relative to the number of randomly located wireless nodes $n$. For the operating regimes with respect to the number of BSS and the number of antennas at each BS, we first analyze the minimum rate of each backhaul link CBS, required to guarantee the same throughput scaling as in the infinite-capacity backhaul link case. We then identify the operating regimes in which the required rate CBS scales slower than nϵ for an arbitrarily small ϵ > 0 (i.e., the regimes where CBS does not need to be infinitely large). We also show the case where our network with GreenInfra is fundamentally in the infrastructure-limited regime, in which the performance is limited by the rate of backhaul links. In addition, we derive a generalized throughput scaling law including the case where the rate of each backhaul link scales slower than CBS. To validate the throughput scaling law for finite values of system parameters, numerical evaluation is also shown via computer simulations.

AB - The cost-effective impact and fundamental limits of infrastructure support with rate-limited wired backhaul links (i.e., GreenInfra support), directly connecting base stations (BSS), are analyzed in a large-scale hybrid network of unit node density, where multiantenna BSS are deployed. We consider a general scenario such that the rate of each BS-to-BS link scales at an arbitrary rate relative to the number of randomly located wireless nodes $n$. For the operating regimes with respect to the number of BSS and the number of antennas at each BS, we first analyze the minimum rate of each backhaul link CBS, required to guarantee the same throughput scaling as in the infinite-capacity backhaul link case. We then identify the operating regimes in which the required rate CBS scales slower than nϵ for an arbitrarily small ϵ > 0 (i.e., the regimes where CBS does not need to be infinitely large). We also show the case where our network with GreenInfra is fundamentally in the infrastructure-limited regime, in which the performance is limited by the rate of backhaul links. In addition, we derive a generalized throughput scaling law including the case where the rate of each backhaul link scales slower than CBS. To validate the throughput scaling law for finite values of system parameters, numerical evaluation is also shown via computer simulations.

UR - http://www.scopus.com/inward/record.url?scp=84976345073&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84976345073&partnerID=8YFLogxK

U2 - 10.1109/JSAC.2016.2551487

DO - 10.1109/JSAC.2016.2551487

M3 - Article

AN - SCOPUS:84976345073

VL - 34

SP - 1179

EP - 1191

JO - IEEE Journal on Selected Areas in Communications

JF - IEEE Journal on Selected Areas in Communications

SN - 0733-8716

IS - 5

M1 - 7448815

ER -