NDLI: On capacity of two-way full-duplex and one-way MIMO with the same number of antennas

Content Provider	IEEE Xplore Digital Library
Author	Bin Zhou Kai Yu Zhiyong Bu Huajun Wang
Copyright Year	2014
Description	Author affiliation: Shanghai Res. Center for Wireless Commun., Shanghai, China (Huajun Wang) \|\| Shanghai Inst. of Microsyst. & Inf., Shanghai, China (Bin Zhou; Kai Yu; Zhiyong Bu)
Abstract	Two-way co-channel communication enabled by recent full-duplex (FD) transceiver designs offers the potential to double spectral efficiency. However, currently most of FD radios require additional antennas to facilitate the multi-stage self-interference cancellation (SIC). As increasing antenna number of transceiver certainly leads to higher theoretical link capacities, the real gain of FD systems over its half-duplex MIMO counterparts should be re-evaluated under a same antenna-number assumption. In this paper, we derive generic close-form expressions for two-way FD link capacity based on mainstream SIC approaches, analyze the impacts of Tx-EVM and transmitter channel information (CSIT) on FD link capacity, and thus illustrate the necessity of enabling close-loop FD to fully exploit spatial diversity. Numerical results show that, although the capacity gain of FD over MIMO is jointly determined by Tx power, SIC gain and Tx-EVM, the awareness of CSIT improves FD performance much more significantly than it does for MIMO. Moreover, for FD radios with Tx-noise, the SIC gain in RF-domain is the most important in determining the capacity of two-way FD communications.
Starting Page	581
Ending Page	586
File Size	348799
Page Count	6
File Format	PDF
ISBN	9781479941469
DOI	10.1109/ICCChina.2014.7008344
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Silicon carbide MIMO Silicon Transceivers High definition video Antennas
Content Type	Text
Resource Type	Article

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