IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
Theoretical system capacity of multi-user MIMO-OFDM THP in the presence of terminal mobility
Ryota MizutaniYukiko ShimboHirofumi SuganumaHiromichi TomebaTakashi OnoderaFumiaki Maehara
Author information
JOURNAL FREE ACCESS

2020 Volume 9 Issue 4 Pages 117-122

Details
Abstract

This letter investigates the theoretical system capacity of multi-user multiple-input multiple-output (MU-MIMO) orthogonal frequency division multiplexing (OFDM) Tomlinson-Harashima precoding (THP) in the presence of terminal mobility. Considering that MU-MIMO THP has been adopted for OFDM-based mobile broadband systems, analyzing the effects of time-selective fading and the modulo loss peculiar to THP on system capacity is essential. In this study, we theoretically derive both the multi-user interference (MUI) and inter-carrier interference (ICI) resulting from terminal mobility and incorporate these into the modulo loss analysis based on the mod-Λ channel. The theoretical results obtained by the proposed analysis are compared with those of linear precoding, which demonstrates the applicability of THP to OFDM-based mobile broadband systems.

Content from these authors
© 2020 The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top