Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Ralf R. Muller"'
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 2, Pp 144-167 (2021)
In this article, we study two novel massive multiple-input multiple-output (MIMO) transmitter architectures for millimeter wave (mmWave) communications which comprise few active antennas, each equipped with a dedicated radio frequency (RF) chain, tha
Externí odkaz:
https://doaj.org/article/f7a72350a696431d9d95c8cf35464451
Publikováno v:
IEEE Transactions on Information Forensics and Security. 17:1300-1315
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::725f6437128b92b0608b7bd9a01000ce
https://doi.org/10.1109/tifs.2022.3159108
https://doi.org/10.1109/tifs.2022.3159108
Publikováno v:
IEEE Transactions on Wireless Communications. 20:5831-5845
Passively overheard massive multiple-input multiple-output (MIMO) settings are capable of suppressing eavesdroppers via narrow beamforming towards legitimate receivers. This implies that secrecy is obtained almost for free in these settings. This stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e29703ecbc117d14324de4f4ef1ba0
https://doi.org/10.1109/twc.2021.3070529
https://doi.org/10.1109/twc.2021.3070529
Autor:
Ralf R. Muller
Publikováno v:
IEEE Transactions on Communications. 69:2987-2996
This paper presents a method to calculate the exact average block error probability of some random code ensembles under maximum-likelihood decoding. The proposed method is applicable to various channels and ensembles. The focus is on both spherical a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264e2f9997e01651bf74f4c7fde81689
https://doi.org/10.1109/tcomm.2021.3052539
https://doi.org/10.1109/tcomm.2021.3052539
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 2, Pp 144-167 (2021)
In this paper, we study two novel massive multiple-input multiple-output (MIMO) transmitter architectures for millimeter wave (mmWave) communications which comprise few active antennas, each equipped with a dedicated radio frequency (RF) chain, that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f8177a454acbda786c1c71c5abc3646
https://doi.org/10.1109/ojcoms.2020.3048063
https://doi.org/10.1109/ojcoms.2020.3048063
Inverse probability problems whose generative models are given by strictly nonlinear Gaussian random fields show the all-or-nothing behavior: There exists a critical rate at which Bayesian inference exhibits a phase transition. Below this rate, the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cbb505fa2bb13296f8106871d68f8ad
http://arxiv.org/abs/2205.08782
http://arxiv.org/abs/2205.08782
Publikováno v:
2021 IEEE Global Communications Conference (GLOBECOM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ceb77817b724d9fb2571831c09de860
https://doi.org/10.1109/globecom46510.2021.9685630
https://doi.org/10.1109/globecom46510.2021.9685630
Autor:
Ralf R. Muller
Publikováno v:
SSP
We utilize the new concept of linear computation coding to reduce the computational effort in digital beamforming. For that purpose the beamforming matrix is decomposed into the product of two or more matrices which are only composed of zeros and sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65499641f40a8eda6dbfba14286e1b60
https://doi.org/10.1109/ssp49050.2021.9513777
https://doi.org/10.1109/ssp49050.2021.9513777
Autor:
Ralf R. Muller
Publikováno v:
ICC
We utilize recent results on the exact block error probability of Gaussian random codes in additive white Gaussian noise to analyze Gaussian random coding for massive multiple-access at finite message length. Soft iterative interference cancellation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d755f453f84bf2eb5e9f4d2c7b5a96fc
https://doi.org/10.1109/icc42927.2021.9500907
https://doi.org/10.1109/icc42927.2021.9500907
Autor:
Ralf R. Muller
Publikováno v:
Entropy
Volume 23
Issue 5
Entropy, Vol 23, Iss 539, p 539 (2021)
Volume 23
Issue 5
Entropy, Vol 23, Iss 539, p 539 (2021)
In 2017, Polyanskiy [1] showed that the trade-off between power and bandwidth efficiency for massive Gaussian random access is governed by two fundamentally different regimes: low power and high power. For both regimes, tight performance bounds were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2d837c3b556db6a3da8c9d8dc8d8803