Zobrazeno 1 - 10
of 609
pro vyhledávání: '"Tölli, A"'
Cache-aided MIMO communications aims to jointly exploit both coded caching~(CC) and spatial multiplexing gains to enhance communication efficiency. In this paper, we first analyze the achievable degrees of freedom~(DoF) in a MIMO-CC system with CC ga
Externí odkaz:
http://arxiv.org/abs/2407.15743
This paper addresses the problem of uplink transmit power optimization in distributed massive multiple-input multiple-output systems, where remote radio heads (RRHs) are equipped with 1-bit analog-to-digital converters (ADCs). First, in a scenario wh
Externí odkaz:
http://arxiv.org/abs/2407.15416
In this paper, we study the optimality of the Bussgang linear minimum mean squared error (BLMMSE) channel estimator for multiple-input multiple-output systems with 1-bit analog-to-digital converters. We compare the BLMMSE with the optimal minimum mea
Externí odkaz:
http://arxiv.org/abs/2407.13921
The global 6G vision has taken its shape after years of international research and development efforts. This work culminated in ITU-R's Recommendation on "IMT-2030 Framework". While the definition phase of technological requirements is currently ongo
Externí odkaz:
http://arxiv.org/abs/2407.09398
This paper focuses on the minimum mean squared error (MMSE) channel estimator for multiple-input multiple-output (MIMO) systems with one-bit quantization at the receiver side. Despite its optimality and significance in estimation theory, the MMSE cha
Externí odkaz:
http://arxiv.org/abs/2404.05536
We consider a cell-free massive multiple-input multiple-output system with multi-antenna access points (APs) and user equipments (UEs), where the UEs can be served in both the downlink (DL) and uplink (UL) within a resource block. We tackle the combi
Externí odkaz:
http://arxiv.org/abs/2404.03285
Autor:
Abolpour, Milad, Salehi, MohammadJavad, Mohajer, Soheil, Shariatpanahi, Seyed Pooya, Tölli, Antti
A novel coding design is proposed to enhance information retrieval in a wireless network of users with partial access to the data, in the sense of observation, measurement, computation, or storage. Information exchange in the network is assisted by a
Externí odkaz:
http://arxiv.org/abs/2402.00465
A practical and scalable multicast beamformer design in multi-input multi-output~(MIMO) coded caching~(CC) systems is introduced in this paper. The proposed approach allows multicast transmission to multiple groups with partially overlapping user set
Externí odkaz:
http://arxiv.org/abs/2312.02839
Coded caching (CC) schemes exploit the cumulative cache memory of network users, outperforming traditional uncoded schemes where cache contents are only used locally. Interestingly, this CC gain can also be combined with the spatial multiplexing gain
Externí odkaz:
http://arxiv.org/abs/2312.02595
Enabling communications in the (sub-)THz band will call for massive multiple-input multiple-output (MIMO) arrays at either the transmit- or receive-side, or at both. To scale down the complexity and power consumption when operating across massive fre
Externí odkaz:
http://arxiv.org/abs/2312.01777