### Abstract

Under the assumption of large scale antenna, we analyze the sum rate of circular layout distributed antenna systems (CL-DAS). First, we propose a concept of virtual base station and an expected large scale fading (E-LSF) for an arbitrarily located user as a function of the locations of users and distributed antennas and a path loss exponent. Based on E-LSF, we derive an approximated sum rate of CL-DAS whose form is identical to the sum rate of centralized multiple-input multiple-output (C-MIMO) systems. These results make it possible that the sum rate of CL-DAS with arbitrary beamforming schemes or power allocation algorithms can be evaluated using the existing approaches for C-MIMO systems. Simulation results verify that our analyses with E-LSF are valid for practical systems.

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

Article number | 8423682 |

Pages (from-to) | 121-124 |

Number of pages | 4 |

Journal | IEEE Wireless Communications Letters |

Volume | 8 |

Issue number | 1 |

DOIs | |

Publication status | Published - 2019 Feb |

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### All Science Journal Classification (ASJC) codes

- Control and Systems Engineering
- Electrical and Electronic Engineering

### Cite this

*IEEE Wireless Communications Letters*,

*8*(1), 121-124. [8423682]. https://doi.org/10.1109/LWC.2018.2861757

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*IEEE Wireless Communications Letters*, vol. 8, no. 1, 8423682, pp. 121-124. https://doi.org/10.1109/LWC.2018.2861757

**Asymptotic analysis of sum rate of CL-DAS based on expected large scale fading.** / Han, Yonggue; Lee, Jeongsu; Sim, Dongkyu; Lee, Chungyong.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Asymptotic analysis of sum rate of CL-DAS based on expected large scale fading

AU - Han, Yonggue

AU - Lee, Jeongsu

AU - Sim, Dongkyu

AU - Lee, Chungyong

PY - 2019/2

Y1 - 2019/2

N2 - Under the assumption of large scale antenna, we analyze the sum rate of circular layout distributed antenna systems (CL-DAS). First, we propose a concept of virtual base station and an expected large scale fading (E-LSF) for an arbitrarily located user as a function of the locations of users and distributed antennas and a path loss exponent. Based on E-LSF, we derive an approximated sum rate of CL-DAS whose form is identical to the sum rate of centralized multiple-input multiple-output (C-MIMO) systems. These results make it possible that the sum rate of CL-DAS with arbitrary beamforming schemes or power allocation algorithms can be evaluated using the existing approaches for C-MIMO systems. Simulation results verify that our analyses with E-LSF are valid for practical systems.

AB - Under the assumption of large scale antenna, we analyze the sum rate of circular layout distributed antenna systems (CL-DAS). First, we propose a concept of virtual base station and an expected large scale fading (E-LSF) for an arbitrarily located user as a function of the locations of users and distributed antennas and a path loss exponent. Based on E-LSF, we derive an approximated sum rate of CL-DAS whose form is identical to the sum rate of centralized multiple-input multiple-output (C-MIMO) systems. These results make it possible that the sum rate of CL-DAS with arbitrary beamforming schemes or power allocation algorithms can be evaluated using the existing approaches for C-MIMO systems. Simulation results verify that our analyses with E-LSF are valid for practical systems.

UR - http://www.scopus.com/inward/record.url?scp=85050995762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85050995762&partnerID=8YFLogxK

U2 - 10.1109/LWC.2018.2861757

DO - 10.1109/LWC.2018.2861757

M3 - Article

AN - SCOPUS:85050995762

VL - 8

SP - 121

EP - 124

JO - IEEE Wireless Communications Letters

JF - IEEE Wireless Communications Letters

SN - 2162-2337

IS - 1

M1 - 8423682

ER -