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Fluid antenna multiple access (FAMA) is an emerging technology in massive access designed to meet the demands of future wireless communication networks by naturally mitigating multiuser interference through the utilization of the fluid…

Information Theory · Computer Science 2025-11-25 Hanjiang Hong , Kai-Kit Wong , Xusheng Zhu , Hao Xu , Han Xiao , Farshad Rostami Ghadi , Hyundong Shin

Filter bank multiple access (FBMA) without subbands orthogonality has been proposed as a new candidate waveform to better meet the requirements of future wireless communication systems and scenarios. It has the ability to process directly…

Information Theory · Computer Science 2020-10-14 Yuhao Qi , Jian Dang , Zaichen Zhang , Liang Wu , Yongpeng Wu

This paper presents the first Network-Coded Multiple Access (NCMA) system with multiple users adopting different signal modulations, referred to as rate-diverse NCMA. A distinguishing feature of NCMA is the joint use of physical-layer…

Information Theory · Computer Science 2016-10-05 Haoyuan Pan , Lu Lu , Soung Chang Liew

Convergence constrained power allocation (CCPA) in single carrier multiuser (MU) single-input multiple-output (SIMO) systems with turbo equalization is considered in this paper. In order to exploit full benefit of the iterative receiver,…

Information Theory · Computer Science 2016-11-17 Valtteri Tervo , Antti Tölli , Juha Karjalainen , Tad Matsumoto

Semantic communication is a new paradigm that exploits deep learning models to enable end-to-end communications processes, and recent studies have shown that it can achieve better noise resiliency compared with traditional communication…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Wenyu Zhang , Kaiyuan Bai , Sherali Zeadally , Haijun Zhang , Hua Shao , Hui Ma , Victor C. M. Leung

In Fixed Wireless Applications (FWA), the Code Division Multiple Access (CDMA) is the most promising candidate for wideband data access. The reason is the soft limit on the number of active mobile devices. Many Fixed Wireless Applications…

Information Theory · Computer Science 2012-12-12 Muhammad Zeeshan , Shoab A Khan , Muhammad Yasir Malik

In this paper, we study a mobile edge computing (MEC) system with the mobile device aided by multiple relay nodes for offloading data to an edge server. Specifically, the modes of decode-and-forward (DF) with time-division-multiple-access…

Information Theory · Computer Science 2020-11-26 Xiang Li , Rongfei Fan , Han Hu , Ning Zhang , Xianfu Chen

We consider communication over the Gaussian multiple-access channel in the regime where the number of users grows linearly with the codelength. In this regime, schemes based on sparse superposition coding can achieve a near-optimal tradeoff…

Information Theory · Computer Science 2025-06-04 Xiaoqi Liu , Kuan Hsieh , Ramji Venkataramanan

A new approach to multiple access based on finite field transforms is investigated. These schemes, termed Galois-Division Multiple Access (GDMA), offer compact bandwidth requirements. A new digital transform, the Finite Field Hartley…

Information Theory · Computer Science 2015-02-13 J. P. C. L. Miranda , H. M. de Oliveira

MFEM is an open-source, lightweight, flexible and scalable C++ library for modular finite element methods that features arbitrary high-order finite element meshes and spaces, support for a wide variety of discretization approaches and…

The $hp$-adaptive finite element method (FEM) - where one independently chooses the mesh size ($h$) and polynomial degree ($p$) to be used on each cell - has long been known to have better theoretical convergence properties than either $h$-…

Numerical Analysis · Mathematics 2023-09-14 Marc Fehling , Wolfgang Bangerth

This paper studies a $K$-user lattice-code based multiple-access (LCMA) scheme. Each user equipment (UE) encode its message with a practical lattice code, where we suggest a $2^m$-ary \emph{ring code} with symbol-wise bijective mapping to…

Information Theory · Computer Science 2024-10-10 Tao Yang. Fangtao Yu , Rongke Liu , Shangxiang Lyu , John Thompson

Mixture-of-Experts (MoE) workloads rely on expert parallelism (EP) to achieve high GPU efficiency. State-of-the-art EP communication systems such as DeepEP demonstrate strong performance but exhibit poor portability across heterogeneous GPU…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-23 Ziming Mao , Yihan Zhang , Chihan Cui , Zhen Huang , Kaichao You , Zhongjie Chen , Zhiying Xu , Zhenyu Gu , Scott Shenker , Costin Raiciu , Yang Zhou , Ion Stoica

By offering shared computational facilities to which mobile devices can offload their computational tasks, the mobile edge computing framework is expanding the scope of applications that can be provided on resource-constrained devices. When…

Information Theory · Computer Science 2018-10-16 Mahsa Salmani , Timothy N. Davidson

A new Efficient-bandwidth code-division-multiple-access (CDMA) for band-limited channels is introduced which is based on finite field transforms. A multilevel code division multiplex exploits orthogonality properties of nonbinary sequences…

Information Theory · Computer Science 2015-05-18 H. M. de Oliveira , R. M. Campello de Souza , A. N. Kauffman

Network-coded multiple access (NCMA) is a communication scheme for wireless multiple-access networks where physical-layer network coding (PNC) is employed. In NCMA, a user encodes and spreads its message into multiple packets. Time is…

Information Theory · Computer Science 2014-10-13 Shenghao Yang , Soung Chang Liew , Lizhao You , Yi Chen

The MFEM (Modular Finite Element Methods) library is a high-performance C++ library for finite element discretizations. MFEM supports numerous types of finite element methods and is the discretization engine powering many computational…

Sparse code multiple access (SCMA) is a new frequency domain non-orthogonal multiple-access technique which can improve spectral efficiency of wireless radio access. With SCMA, different incoming data streams are directly mapped to…

Information Theory · Computer Science 2016-11-18 Hosein Nikopour , Eric Yi , Alireza Bayesteh , Kelvin Au , Mark Hawryluck , Hadi Baligh , Jianglei Ma

This paper presents the first network-coded multiple access (NCMA) system prototype operated on high-order modulations up to 16-QAM. NCMA jointly exploits physical-layer network coding (PNC) and multiuser decoding (MUD) to boost throughput…

Information Theory · Computer Science 2016-08-16 Haoyuan Pan , Lu Lu , Soung Chang Liew

In this paper, a new approach for multiple access (MA) in fifth generation (5G) of cellular networks called power domain sparse code multiple access (PSMA) is proposed. In PSMA, we adopt both the power domain and the code domain to transmit…

Information Theory · Computer Science 2017-06-21 Nader Mokari , Mohammad. R Javan , Mohammad Moltafet , Hamid Saeedi , Hossein Pishro-Nik