An Adaptive Bit Allocation for Maximum Bit-Rate Tomlinson-Harashima Precoding

Shigenori KINJO  Shuichi OHNO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E102-A   No.10   pp.1438-1442
Publication Date: 2019/10/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E102.A.1438
Type of Manuscript: LETTER
Category: Communication Theory and Signals
Keyword: 
Tomlinson-Harashima precoding,  maximum bit-rate,  zero-forcing THP,  adaptive bit allocation,  

Full Text: FreePDF(234.1KB)


Summary: 
An adaptive bit allocation scheme for zero-forcing (ZF) Tomlinson-Harashima precoding (THP) is proposed. The ZF-THP enables us to achieve feasible bit error rate (BER) performance when appropriate substream permutations are installed at the transmitter. In this study, the number of bits in each substream is adaptively allocated to minimize the average BER in fading environments. Numerical examples are provided to compare the proposed method with eigenbeam space division multiplexing (E-SDM) method.