Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Osawa, Noboru"'
We consider a user-centric cell-free massive MIMO wireless network with $L$ remote radio units, each with $M$ antennas, serving $K_{\rm tot}$ user equipments (UEs). Most of the literature considers the regime $LM \gg K_{\rm tot}$, where the $K$ UEs a
Externí odkaz:
http://arxiv.org/abs/2307.00850
Autor:
Göttsch, Fabian, Osawa, Noboru, Amano, Yoshiaki, Kanno, Issei, Yamazaki, Kosuke, Caire, Giuseppe
We consider fairness scheduling in a user-centric cell-free massive MIMO network, where $L$ remote radio units, each with $M$ antennas, serve $K_{\rm tot} \approx LM$ user equipments (UEs). Recent results show that the maximum network sum throughput
Externí odkaz:
http://arxiv.org/abs/2305.08363
Autor:
Göttsch, Fabian, Osawa, Noboru, Ohseki, Takeo, Amano, Yoshiaki, Kanno, Issei, Yamazaki, Kosuke, Caire, Giuseppe
We consider a user-centric scalable cell-free massive MIMO network with a total of $LM$ distributed remote radio unit antennas serving $K$ user equipments (UEs). Many works in the current literature assume $LM\gg K$, enabling high UE data rates but a
Externí odkaz:
http://arxiv.org/abs/2211.15294
Autor:
Osawa, Noboru, Göttsch, Fabian, Kanno, Issei, Ohseki, Takeo, Amano, Yoshiaki, Yamazaki, Kosuke, Caire, Giuseppe
The pilot contamination in cell-free massive multiple-input-multiple-output (CF-mMIMO) must be addressed for accommodating a large number of users. In previous works, we have investigated a decontamination method called subspace projection (SP). The
Externí odkaz:
http://arxiv.org/abs/2207.11478
We consider a scalable user-centric cell-free massive MIMO network with distributed remote radio units (RUs), enabling macrodiversity and joint processing. Due to the limited uplink (UL) pilot dimension, multiuser interference in the UL pilot transmi
Externí odkaz:
http://arxiv.org/abs/2206.03801
Cell-free massive MIMO is a variant of multiuser MIMO and massive MIMO, in which the total number of antennas $LM$ is distributed among the $L$ remote radio units (RUs) in the system, enabling macrodiversity and joint processing. Due to pilot contami
Externí odkaz:
http://arxiv.org/abs/2206.03800
We consider a cell-free wireless system operated in Time Division Duplex (TDD) mode with user-centric clusters of remote radio units (RUs). Since the uplink pilot dimensions per channel coherence slot is limited, co-pilot users might incur mutual pil
Externí odkaz:
http://arxiv.org/abs/2203.00714
We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Bj\"ornsson and Sanguinetti. After having shown the importance of dominant channel subspace information for uplink (UL) pilot decontamination and having
Externí odkaz:
http://arxiv.org/abs/2201.04922
We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Bj\"ornsson and Sanguinetti. Several options for scalable uplink (UL) processing are examined including: i) cluster size and SNR threshold criterion for
Externí odkaz:
http://arxiv.org/abs/2108.04579
Orthogonal time frequency and space (OTFS) modulation is a promising technology that satisfies high Doppler requirements for future mobile systems. OTFS modulation encodes information symbols and pilot symbols into the two-dimensional (2D) delay-Dopp
Externí odkaz:
http://arxiv.org/abs/2010.15396