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Cell-free massive MIMO (CF-mMIMO) network and its user-centric (UC) version are considered as promising techniques for the next generations of wireless networks. However, fronthaul and backhaul assignments are challenging issues in these…

Information Theory · Computer Science 2021-03-10 Pouya Agheli , Mohammad Javad Emadi , Hamzeh Beyranvand

To support the newly introduced multimedia services with ultra-low latency and extensive computation requirements, resource-constrained end user devices should utilize the ubiquitous computing resources available at network edge for…

Networking and Internet Architecture · Computer Science 2023-07-04 Fitsum Debebe Tilahun , Ameha Tsegaye Abebe , Chung G. Kang

Due to the spectrum reuse in small cell network, the inter-cell interference has great effect on MEC's performance. In this paper, for reducing the energy consumption and latency of MEC, we propose a game theory based jointing offloading…

Information Theory · Computer Science 2018-05-08 Ning Li , Jose-Fernan Martinez-Ortega , Gregorio Rubio

Driven by green communications, energy efficiency (EE) has become a new important criterion for designing wireless communication systems. However, high EE often leads to low spectral efficiency (SE), which spurs the research on EE-SE…

Networking and Internet Architecture · Computer Science 2016-05-10 Lei Deng , Wenjie Zhang , Yun Rui , Yeo Chai Kiat

This paper proposes the utilization of cell-free massive MIMO (CF-M-MIMO) processing on top of the regular micro/macrocellular deployments typically found in current 5G networks. Towards this end, it contemplates the connection of all base…

Networking and Internet Architecture · Computer Science 2023-06-13 F. Riera-Palou , G. Femenias , D. López-Pérez , N. Piovesan , A. De Domenico

Network function Virtualization (NFV) and Mobile Edge Computing (MEC) are promising 5G technologies to support resource-demanding mobile applications. In NFV, one must process the service function chain (SFC) in which a set of network…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-03-31 Phuong-Duy Nguyen , Long Bao Le

In this paper, we consider the mobile edge offloading scenario consisting of one mobile device (MD) with multiple independent tasks and various remote edge devices. In order to save energy, the user's device can offload the tasks to…

Signal Processing · Electrical Eng. & Systems 2019-10-11 Minh Hoang Ly , Thinh Quang Dinh , Ha Hoang Kha

In this paper, we study resource allocation algorithm design for multiuser orthogonal frequency division multiple access (OFDMA) ultra-reliable low latency communication (URLLC) in mobile edge computing (MEC) systems. To achieve the…

Information Theory · Computer Science 2020-05-12 Walid R. Ghanem , Vahid Jamali , Qiuyu Zhang , Robert Schober

Cell-free (CF) massive MIMO offers uniform service via distributed access points (APs), which impose high deployment costs. A novel design called hierarchical cell-free (HCF) addresses this problem by replacing some APs with a central base…

Information Theory · Computer Science 2025-08-29 Wei Jiang , Hans D Schotten

Cell-Free (CF) Massive multiple-input multiple-output(MIMO) is a distributed antenna system, wherein a large number of back-haul linked access points randomly distributed over a coverage area serve simultaneously a smaller number of users.…

Information Theory · Computer Science 2018-06-26 Salah Eddine Hajri , Juwendo Denis , Mohamad Assaad

Cell-free (CF) massive multiple-input multiple-output (MIMO) is a promising solution to provide uniform good performance for unmanned aerial vehicle (UAV) communications. In this paper, we propose the UAV communication with wireless power…

Information Theory · Computer Science 2021-04-26 Jiakang Zheng , Jiayi Zhang , Bo Ai

Ultra-reliable and low-latency communication (URLLC) is a pivotal technique for enabling the wireless control over industrial Internet-of-Things (IIoT) devices. By deploying distributed access points (APs), cell-free massive multiple-input…

Information Theory · Computer Science 2023-02-21 Qihao Peng , Hong Ren , Cunhua Pan , Nan Liu , Maged Elkashlan

Cellular communication is a widely used technology in the world where the coverage area is divided into multiple cells. Interference is one of the most important challenges in cellular networks which causes problems by reducing the quality…

Information Theory · Computer Science 2022-08-30 Marzieh Arasteh , Narges Yarahmadi Gharaei , Mehrdad Ardebilipour

This paper studies a multiuser mobile edge computing (MEC) system, in which one base station (BS) serves multiple users with intensive computation tasks. We exploit the multi-antenna non-orthogonal multiple access (NOMA) technique for…

Information Theory · Computer Science 2018-09-11 Feng Wang , Jie Xu , Zhiguo Ding

We consider the problem of jointly optimizing users' offloading decisions, communication and computing resource allocation in a sliced multi-cell mobile edge computing (MEC) network. We minimize the weighted sum of the gap between the…

Information Theory · Computer Science 2021-01-12 Sheyda Zarandi , Hina Tabassum

In this paper, we optimize user scheduling, power allocation and beamforming in distributed multiple-input multiple-output (MIMO) networks implementing user-centric clustering. We study both the coherent and non-coherent transmission modes,…

Information Theory · Computer Science 2021-08-16 Hussein A. Ammar , Raviraj Adve , Shahram Shahbazpanahi , Gary Boudreau , Kothapalli Venkata Srinivas

Cell-free massive MIMO (CF-mMIMO) provides wireless connectivity for a large number of user equipments (UEs) using access points (APs) distributed across a wide area with high spectral efficiency (SE). The energy efficiency (EE) of the…

Information Theory · Computer Science 2022-05-10 Thomas Choi , Masaaki Ito , Issei Kanno , Jorge Gomez-Ponce , Colton Bullard , Takeo Ohseki , Kosuke Yamazaki , Andreas F. Molisch

In this paper, we study joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with randomly arriving data traffic. We consider both co-located and Cell-Free (CF) Massive MIMO, where the…

Information Theory · Computer Science 2019-11-26 Zheng Chen , Emil Björnson , Erik G. Larsson

We examine the problem of optimizing resource allocation in the uplink for a user-centric, cell-free, multi-input multi-output network. We start by modeling and developing resource allocation algorithms for two standard network operation…

Information Theory · Computer Science 2024-06-11 Zehua Li , Raviraj Adve

Facing a vast amount of connections, huge performance demands, and the need for reliable connectivity, the sixth generation of communication networks (6G) is envisioned to implement disruptive technologies that jointly spur connectivity,…

Information Theory · Computer Science 2023-10-26 Robert-Jeron Reifert , Hayssam Dahrouj , Basem Shihada , Aydin Sezgin , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini