2024-03-28T08:39:42Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00026413
2023-01-16T04:34:05Z
673:674:675
Interference-Aided Detection of Subthreshold Signal Using Beam Control in Polarization Diversity Reception
Hiraoka, Shintaro
Nakashima, Yasuo
Yamazato, Takaya
Arai, Shintaro
Tadokoro, Yukihiro
Tanaka, Hiroya
open access
“© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”
Polarization diversity
subthreshold
weak signal detection
channel capacity
stochastic resonance
The present letter discusses a detectability enhancement induced by co-channel interference signals in the polarization diversity reception. The challenge is the detection of weak (subthreshold) signals, the level of which is less than the detection limit of radio receivers. To understand the theory underlying the mechanism in the presented diversity scheme, we introduce an analytic model of a dual polarized antenna array in the fading channel. In addition, the channel capacity in a binary data transmission is derived. As a result, we reveal that the interference-aided diversity reception enables us to detect signals even below the detection limit of the receiver. Moreover, the appropriate source code is needed to achieve the channel capacity because the transmission channel is asymmetric in the present reception scheme.
IEEE
2018-09
eng
journal article
AM
http://hdl.handle.net/2237/00028616
https://nagoya.repo.nii.ac.jp/records/26413
https://doi.org/10.1109/LCOMM.2018.2851583
1089-7798
1558-2558
IEEE Communications Letters
22
9
1926
1929
https://nagoya.repo.nii.ac.jp/record/26413/files/FINAL_VERSION.pdf
application/pdf
454.6 kB
2018-10-10