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Distributed Detection of MIMO Spatial Multiplexed Signals in Terminal Collaborated Reception

Fengning DU, Hidekazu MURATA, Mampei KASAI, Toshiro NAKAHIRA, Koichi ISHIHARA, Motoharu SASAKI, Takatsune MORIYAMA

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Summary :

Distributed detection techniques of multiple-input multiple-output (MIMO) spatially multiplexed signals are studied in this paper. This system considered employs multiple mobile stations (MSs) to receive signals from a base station, and then share their received signal waveforms with collaborating MSs. In order to reduce the amount of traffic over the collaborating wireless links, distributed detection techniques are proposed, in which multiple MSs are in charge of detection by making use of both the shared signal waveforms and its own received waveform. Selection combining schemes of detected bit sequences are studied to finalize the decisions. Residual error coefficients in iterative MIMO equalization and detection are utilized in this selection. The error-ratio performance is elucidated not only by computer simulations, but also by offline processing using experimental signals recorded in a measurement campaign.

Publication
IEICE TRANSACTIONS on Communications Vol.E104-B No.7 pp.884-892
Publication Date
2021/07/01
Publicized
2020/12/29
Online ISSN
1745-1345
DOI
10.1587/transcom.2020EBP3108
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

Authors

Fengning DU
  Kyoto University
Hidekazu MURATA
  Kyoto University
Mampei KASAI
  Kyoto University
Toshiro NAKAHIRA
  NTT Corporation
Koichi ISHIHARA
  NTT Corporation
Motoharu SASAKI
  NTT Corporation
Takatsune MORIYAMA
  NTT Corporation

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