Phase-Divided MAC Protocol for Integrated Uplink and Downlink Multi-User MIMO WLANs

Tae Yoon Kim, Taewon Song, Wonjung Kim, Sangheon Pack

Research output: Contribution to journalArticle

Abstract

Multi-user multiple-input and multiple-output (MU-MIMO) technology is regarded as one of the most promising technologies to cope with the enormous amount of network traffic in wireless local area networks (WLANs). However, combining uplink and downlink MU-MIMO in the basis of a distributed coordination function (DCF) causes serious channel resource loss because of collisions between uplink and downlink transmissions. In this paper, we propose a phase-divided medium access control (PD-MAC) protocol, in which a novel integrated frame structure is introduced that allocates two phases for uplink and downlink in a periodic cycle to remove contentions between uplink and downlink transmissions. PD-MAC also adopts an overhead mitigation scheme to reduce control overhead in user-selection and employs an algorithm to balance uplink and downlink throughputs. An analytical model is developed to characterize the PD-MAC network throughput. Simulation results show that PD-MAC outperforms the previous unified MAC with regard to network throughput by 21.2%, and that the overhead mitigation scheme improves PD-MAC network throughput by 47.3%.

Original languageEnglish
JournalIEEE Transactions on Vehicular Technology
DOIs
Publication statusAccepted/In press - 2017 Nov 24

Fingerprint

Multiuser MIMO
Wireless Local Area Network (WLAN)
MAC Protocol
Medium Access Control
Medium access control
Uplink
Wireless local area networks (WLAN)
MIMO systems
Network protocols
Throughput
Frame Structure
Output
Network Traffic
Contention
Analytical Model
Analytical models
Collision
Cycle
Resources
Simulation

Keywords

  • Analytical models
  • Data communication
  • Downlink
  • IEEE 802.11ac/ax
  • Integrated frame structure
  • Media Access Protocol
  • MIMO
  • MU-MIMO
  • Overhead mitigation scheme
  • PD-MAC
  • Throughput
  • Uplink

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Phase-Divided MAC Protocol for Integrated Uplink and Downlink Multi-User MIMO WLANs. / Kim, Tae Yoon; Song, Taewon; Kim, Wonjung; Pack, Sangheon.

In: IEEE Transactions on Vehicular Technology, 24.11.2017.

Research output: Contribution to journalArticle

@article{9f5b1c926ef54367a27e5727a93834ac,
title = "Phase-Divided MAC Protocol for Integrated Uplink and Downlink Multi-User MIMO WLANs",
abstract = "Multi-user multiple-input and multiple-output (MU-MIMO) technology is regarded as one of the most promising technologies to cope with the enormous amount of network traffic in wireless local area networks (WLANs). However, combining uplink and downlink MU-MIMO in the basis of a distributed coordination function (DCF) causes serious channel resource loss because of collisions between uplink and downlink transmissions. In this paper, we propose a phase-divided medium access control (PD-MAC) protocol, in which a novel integrated frame structure is introduced that allocates two phases for uplink and downlink in a periodic cycle to remove contentions between uplink and downlink transmissions. PD-MAC also adopts an overhead mitigation scheme to reduce control overhead in user-selection and employs an algorithm to balance uplink and downlink throughputs. An analytical model is developed to characterize the PD-MAC network throughput. Simulation results show that PD-MAC outperforms the previous unified MAC with regard to network throughput by 21.2{\%}, and that the overhead mitigation scheme improves PD-MAC network throughput by 47.3{\%}.",
keywords = "Analytical models, Data communication, Downlink, IEEE 802.11ac/ax, Integrated frame structure, Media Access Protocol, MIMO, MU-MIMO, Overhead mitigation scheme, PD-MAC, Throughput, Uplink",
author = "Kim, {Tae Yoon} and Taewon Song and Wonjung Kim and Sangheon Pack",
year = "2017",
month = "11",
day = "24",
doi = "10.1109/TVT.2017.2777902",
language = "English",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Phase-Divided MAC Protocol for Integrated Uplink and Downlink Multi-User MIMO WLANs

AU - Kim, Tae Yoon

AU - Song, Taewon

AU - Kim, Wonjung

AU - Pack, Sangheon

PY - 2017/11/24

Y1 - 2017/11/24

N2 - Multi-user multiple-input and multiple-output (MU-MIMO) technology is regarded as one of the most promising technologies to cope with the enormous amount of network traffic in wireless local area networks (WLANs). However, combining uplink and downlink MU-MIMO in the basis of a distributed coordination function (DCF) causes serious channel resource loss because of collisions between uplink and downlink transmissions. In this paper, we propose a phase-divided medium access control (PD-MAC) protocol, in which a novel integrated frame structure is introduced that allocates two phases for uplink and downlink in a periodic cycle to remove contentions between uplink and downlink transmissions. PD-MAC also adopts an overhead mitigation scheme to reduce control overhead in user-selection and employs an algorithm to balance uplink and downlink throughputs. An analytical model is developed to characterize the PD-MAC network throughput. Simulation results show that PD-MAC outperforms the previous unified MAC with regard to network throughput by 21.2%, and that the overhead mitigation scheme improves PD-MAC network throughput by 47.3%.

AB - Multi-user multiple-input and multiple-output (MU-MIMO) technology is regarded as one of the most promising technologies to cope with the enormous amount of network traffic in wireless local area networks (WLANs). However, combining uplink and downlink MU-MIMO in the basis of a distributed coordination function (DCF) causes serious channel resource loss because of collisions between uplink and downlink transmissions. In this paper, we propose a phase-divided medium access control (PD-MAC) protocol, in which a novel integrated frame structure is introduced that allocates two phases for uplink and downlink in a periodic cycle to remove contentions between uplink and downlink transmissions. PD-MAC also adopts an overhead mitigation scheme to reduce control overhead in user-selection and employs an algorithm to balance uplink and downlink throughputs. An analytical model is developed to characterize the PD-MAC network throughput. Simulation results show that PD-MAC outperforms the previous unified MAC with regard to network throughput by 21.2%, and that the overhead mitigation scheme improves PD-MAC network throughput by 47.3%.

KW - Analytical models

KW - Data communication

KW - Downlink

KW - IEEE 802.11ac/ax

KW - Integrated frame structure

KW - Media Access Protocol

KW - MIMO

KW - MU-MIMO

KW - Overhead mitigation scheme

KW - PD-MAC

KW - Throughput

KW - Uplink

UR - http://www.scopus.com/inward/record.url?scp=85035746336&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035746336&partnerID=8YFLogxK

U2 - 10.1109/TVT.2017.2777902

DO - 10.1109/TVT.2017.2777902

M3 - Article

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

ER -