Pilot Allocation for Interference Coordination in Two-Tier Massive MIMO Heterogeneous Network

Wanming Hao, Osamu Muta, Harris Gacanin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this paper, we investigate pilot allocation problem in two-tier time division duplex (TDD) heterogeneous network (HetNet) with mMIMO. First, we propose a new pilot allocation scheme to maximize ergodic downlink sum rate of macro users (MUs) and small cell users (SUs), where the uplink pilot overhead and cross-tier interference are jointly considered. Then, we theoretically analyze the formulated problem and propose a low complexity one-dimensional search algorithm to obtain the optimum pilot allocation. In addition, we propose two suboptimal pilot allocation algorithms to simplify the computational process and improve SUs' fairness, respectively. Finally, simulation results show that the performance of the proposed scheme outperforms that of the traditional schemes.

Original languageEnglish
Title of host publication2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781538663554
DOIs
Publication statusPublished - Jul 20 2018
Event87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Portugal
Duration: Jun 3 2018Jun 6 2018

Publication series

NameIEEE Vehicular Technology Conference
Volume2018-June
ISSN (Print)1550-2252

Other

Other87th IEEE Vehicular Technology Conference, VTC Spring 2018
CountryPortugal
CityPorto
Period6/3/186/6/18

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Hao, W., Muta, O., & Gacanin, H. (2018). Pilot Allocation for Interference Coordination in Two-Tier Massive MIMO Heterogeneous Network. In 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings (pp. 1-6). (IEEE Vehicular Technology Conference; Vol. 2018-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2018.8417620