Dynamic Time Division Duplexing for Downlink/Uplink Decoupled Millimeter Wave-Based Cellular Networks

Ramamoorthi, Yoghitha and Kumar, Abhinav (2019) Dynamic Time Division Duplexing for Downlink/Uplink Decoupled Millimeter Wave-Based Cellular Networks. IEEE Communications Letters, 23 (8). pp. 1441-1445. ISSN 1089-7798

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Abstract

The upcoming 5G cellular network's standard from 3GPP is expected to support the millimeter-wave (mmwave)-based small cell base stations (SCBSs) to increase the data rate and network capacity. Furthermore, the downlink/uplink decoupling (DUDe) has been proposed in 5G to compensate for the transmit power imbalance between the macro-base stations and SCBSs. In this letter, joint uplink and downlink scheduling and resource allocation in a dynamic time division duplex (TDD) system is formulated as an optimization problem. Given a generalized α-fair scheduler, the dynamic TDD and the user scheduling time fractions are derived for a relaxed problem. The derived dynamic TDD results are shown to be a function of the system load. Simulation results are presented, which match with the derived results and show 17% gain in throughput for certain scenarios.

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IITH Creators:	IITH Creators ORCiD Kumar, Abhinav UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	5G, base stations, downlink/uplink decoupling, dynamic time division duplexing, millimeter wave
Subjects:	Electrical Engineering
Divisions:	Department of Electrical Engineering
Depositing User:	Team Library
Date Deposited:	24 Dec 2019 06:21
Last Modified:	24 Dec 2019 06:21
URI:	http://raiithold.iith.ac.in/id/eprint/7235
Publisher URL:	http://doi.org/10.1109/LCOMM.2019.2920641
Related URLs:	Google Scholar

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