Different Antenna Interleaved Allocation with Full and Divided WHT/DFT Spreading for HTRCI-MIMO/OFDM

Yuta IDA
Takahiro MATSUMOTO
Shinya MATSUFUJI

Publication
IEICE TRANSACTIONS on Communications   Vol.E103-B    No.12    pp.1438-1446
Publication Date: 2020/12/01
Publicized: 2020/06/08
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2019EBP3216
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  MIMO,  HTRCI,  full and divided WHT/DFT spreading,  different antenna interleaved allocation,  

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Summary: 
The spreading technique can improve system performance since it mitigates the influence of deeply faded subcarrier channels. Proposals for implementing orthogonal frequency division multiplexing (OFDM) systems include frequency symbol spreading (FSS) based on the Walsh-Hadamard transform (WHT) and the discrete Fourier transform (DFT). In a single carrier frequency division multiplexing (SC-FDMA), good performance is obtained by the interleaved subcarrier allocation. Moreover, in a multiple-input multiple-output (MIMO), interleaving the operation of the different transmit antennas is also effective. By combining these techniques, in this paper, we propose the different antenna interleaved allocation with the full and divided WHT/DFT spreading for a high time resolution carrier interferometry (HTRCI) MIMO-OFDM.