2024-03-29T11:37:10Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00008271
2022-12-13T02:21:51Z
1:87
Low-Power Dynamic MIMO Detection for a 4x4 MIMO- OFDM Receiver
Miyazaki, Nozomi
Yoshizawa, Shingo
Miyanaga, Yoshikazu
c2014 The Institute of Electronics, Information and Communication Engineers
wireless communications
MIMO detection
low power
DVFS
This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4x4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We propose low-power dynamic MIMO detection that controls detection speed according to wireless environments. The power consumption is reduced by dynamic voltage and frequency scaling (DVFS) that controls the operating voltage and clock frequency in the MIMO detector. We implemented dynamic MIMO detection in a pipelined minimum mean square error (MMSE) MIMO detector that we developed in our previous work. A power saving of 92% was achieved under lowest clock frequency mode conditions.
Institute of Electronics, Information and Communication Engineers
2014-01
eng
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/8271
http://doi.org/10.1587/transfun.E97.A.306
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E97-A
1
306
312
https://kitami-it.repo.nii.ac.jp/record/8271/files/2014_IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E97-A, 1, 306-312.pdf
application/pdf
1.8 MB
2016-11-22