A new frame structure for asynchronous in-band full-duplex systems

Jaeyoung Choi, Dongkyu Kim, Seokwon Lee, Haesoon Lee, Jonghyun Bang, Daesik Hong

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

4 Citations (Scopus)

Abstract

In in-band full-duplex employing conventional frame structure, pilot contamination is inevitable due to asyn-chronism between the nodes. Asynchronism can occur for several reasons such as propagation delay and synchronization error. Pilot contamination increases channel estimation error for both the desired and self-interference channels. We propose a new frame structure that avoids interference during pilot transmission. The proposed frame structure utilizes maximum time offset information in order to cover all the possible time offsets. We then derive the mean square error (MSE) of the channel estimation when the proposed frame structure is employed. Furthermore, based on the MSE analysis, we deliver superior conditions for the proposed frame structure compared to the conventional one. Finally, we show that sacrificing pilot length to avoid interference during pilot transmission guarantees channel estimation performance when the power of the interference is large.

Original languageEnglish
Title of host publication2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages487-491
Number of pages5
ISBN (Electronic)9781467367820
DOIs
Publication statusPublished - 2015 Dec 1
Event26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015 - Hong Kong, China
Duration: 2015 Aug 302015 Sep 2

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2015-December

Other

Other26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015
CountryChina
CityHong Kong
Period15/8/3015/9/2

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Choi, J., Kim, D., Lee, S., Lee, H., Bang, J., & Hong, D. (2015). A new frame structure for asynchronous in-band full-duplex systems. In 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015 (pp. 487-491). [7343348] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 2015-December). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2015.7343348