Feedback for time-correlated MIMO-OFDM system using predictive quantization of bit loading and subcarrier clustering

Yuan-Pei Lin, Tzu Hsuan Chou, See May Phoong

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

1 Scopus citations

Abstract

In the paper, we consider limited feedback for a MIMO-OFDM system over a time-correlated multipath fading channel. Due to time correlation, the subcarriers are correlated in both time and frequency. We propose the use of predictive quantization of bit loading (PQB) and subcarrier clustering (SC). Applying PQB on the subcarriers allows us to exploit the time correlation of the channel and adapt the transmission rate according to the channel condition while SC enables us to take advantage of the frequency correlation of the channel. Simulation results are given to demonstrate that the proposed feedback scheme can achieve a good performance due to the exploitation of both time and frequency correlation.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages384-387
Number of pages4
ISBN (Electronic)9781479980581, 9781479980581
DOIs
StatePublished - 9 Sep 2015
EventIEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore
Duration: 21 Jul 201524 Jul 2015

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2015-September

Conference

ConferenceIEEE International Conference on Digital Signal Processing, DSP 2015
CountrySingapore
CitySingapore
Period21/07/1524/07/15

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    Lin, Y-P., Chou, T. H., & Phoong, S. M. (2015). Feedback for time-correlated MIMO-OFDM system using predictive quantization of bit loading and subcarrier clustering. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015 (pp. 384-387). [7251898] (International Conference on Digital Signal Processing, DSP; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2015.7251898