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Rate-Splitting Multiple Access (RSMA) is an emerging flexible and powerful multiple access for downlink multiantenna networks. In this paper, we introduce the concept of RSMA into short-packet downlink communications. We design optimal…

Information Theory · Computer Science 2022-07-13 Yunnuo Xu , Yijie Mao , Onur Dizdar , Bruno Clerckx

Offloading compute-intensive kernels to hardware accelerators relies on the large degree of parallelism offered by these platforms. However, the effective bandwidth of the memory interface often causes a bottleneck, hindering the…

Hardware Architecture · Computer Science 2022-02-25 Corentin Ferry , Tomofumi Yuki , Steven Derrien , Sanjay Rajopadhye

Modern computing systems are embracing hybrid memory comprising of DRAM and non-volatile memory (NVM) to combine the best properties of both memory technologies, achieving low latency, high reliability, and high density. A prominent…

Hardware Architecture · Computer Science 2020-05-12 Shihao Song , Anup Das , Nagarajan Kandasamy

Storing digital information, ensuring the accuracy, steady and uninterrupted access to the data are considered as fundamental challenges in enterprise-class organizations and companies. In recent years, new types of storage systems such as…

Other Computer Science · Computer Science 2014-05-12 Arash Batni , Farshad Safaei

Next generation high-performance RDMA-capable networks will require a fundamental rethinking of the design and architecture of modern distributed DBMSs. These systems are commonly designed and optimized under the assumption that the network…

Databases · Computer Science 2015-12-22 Carsten Binnig , Andrew Crotty , Alex Galakatos , Tim Kraska , Erfan Zamanian

Three-dimensional (3D)-stacking technology, which enables the integration of DRAM and logic dies, offers high bandwidth and low energy consumption. This technology also empowers new memory designs for executing tasks not traditionally…

Hardware Architecture · Computer Science 2018-12-05 Ramyad Hadidi , Bahar Asgari , Burhan Ahmad Mudassar , Saibal Mukhopadhyay , Sudhakar Yalamanchili , Hyesoon Kim

Large language model (LLM) decoding is a major inference bottleneck because its low arithmetic intensity makes performance highly sensitive to memory bandwidth. 3D-stacked near-memory processing (NMP) provides substantially higher local…

Hardware Architecture · Computer Science 2026-04-10 Chenyang Ai , Yixing Zhang , Haoran Wu , Yudong Pan , Lechuan Zhao , Wenhui OU

Stacked intelligent metasurfaces (SIMs), composed of multiple layers of reconfigurable transmissive metasurfaces, are gaining prominence as a transformative technology for future wireless communication security. This paper investigates the…

Information Theory · Computer Science 2026-02-03 Enyu Shi , Yiyang Zhu , Jiayi Zhang , Ziheng Liu , Jiakang Zheng , Jiancheng An , Derrick Wing Kwan Ng , Bo Ai , Chau Yuen

This paper describes a radio architecture for distributed spectrum sharing of multiple channels among secondary users (SUs) in a wide band of frequencies and a localized area. A novel Multichannel Immediate Multiple Access (MIMA) physical…

Information Theory · Computer Science 2017-02-10 Mingming Cai , J. Nicholas Laneman

The research interest in specialized hardware accelerators for deep neural networks (DNN) spikes recently owing to their superior performance and efficiency. However, today's DNN accelerators primarily focus on accelerating specific…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-11 Cong Guo , Yangjie Zhou , Jingwen Leng , Yuhao Zhu , Zidong Du , Quan Chen , Chao Li , Bin Yao , Minyi Guo

To overcome the well-known memory bottleneck of AI chips, 3D stacked architectures that employ advanced packaging technology with high-density through-silicon vias (TSVs) pins have proven to be a promising solution. The 3D-stacked AI chip…

Hardware Architecture · Computer Science 2026-04-30 Yiqi Liu , Noelle Crawford , Michael Wang , Jilong Xue , Jian Huang

Memory latency, bandwidth, capacity, and energy increasingly limit performance. In this paper, we reconsider proposed system architectures that consist of huge (many-terabyte to petabyte scale) memories shared among large numbers of CPUs.…

Hardware Architecture · Computer Science 2025-09-24 Samuel Dayo , Shuhan Liu , Peijing Li , Philip Levis , Subhasish Mitra , Thierry Tambe , David Tennenhouse , H. -S. Philip Wong

The problem of identifying intersections between two sets of d-dimensional axis-parallel rectangles appears frequently in the context of agent-based simulation studies. For this reason, the High Level Architecture (HLA) specification -- a…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-02-28 Moreno Marzolla , Gabriele D'Angelo

Conventional wisdom holds that an efficient interface between an OS running on a CPU and a high-bandwidth I/O device should use Direct Memory Access (DMA) to offload data transfer, descriptor rings for buffering and queuing, and interrupts…

Hardware Architecture · Computer Science 2025-04-25 Anastasiia Ruzhanskaia , Pengcheng Xu , David Cock , Timothy Roscoe

RDMA is vital for efficient distributed training across datacenters, but millisecond-scale latencies complicate the design of its reliability layer. We show that depending on long-haul link characteristics, such as drop rate, distance and…

Commodity memory interfaces have difficulty in scaling memory capacity to meet the needs of modern multicore and big data systems. DRAM device density and maximum device count are constrained by technology, package, and signal in- tegrity…

Hardware Architecture · Computer Science 2015-05-14 Zehan Cui , Tianyue Lu , Haiyang Pan , Sally A. Mckee , Mingyu Chen

This paper focuses on a new path division multiple access (PDMA) for both uplink (UL) and downlink (DL) massive multiple-input multiple-output network over a high mobility scenario, where the orthogonal time frequency space (OTFS) is…

Signal Processing · Electrical Eng. & Systems 2020-03-19 Muye Li , Shun Zhang , Feifei Gao , Pingzhi Fan , Octavia A. Dobre

Enterprise Networks, over the years, have become more and more complex trying to keep up with new requirements that challenge traditional solutions. Just to mention one out of many possible examples, technologies such as Virtual LANs…

Networking and Internet Architecture · Computer Science 2021-02-23 Jordi Paillisse , Marc Portoles , Albert Lopez , Alberto Rodriguez-Natal , David Iacobacci , Johnson Leong , Victor Moreno , Albert Cabellos , Fabio Maino , Sanjay Hooda

Many convolutional neural network (CNN) accelerators face performance- and energy-efficiency challenges which are crucial for embedded implementations, due to high DRAM access latency and energy. Recently, some DRAM architectures have been…

Hardware Architecture · Computer Science 2023-03-06 Rachmad Vidya Wicaksana Putra , Muhammad Abdullah Hanif , Muhammad Shafique

Stacked intelligent metasurface (SIM) extends the concept of single-layer reconfigurable holographic surfaces (RHS) by incorporating a multi-layered structure, thereby providing enhanced control over electromagnetic wave propagation and…

Signal Processing · Electrical Eng. & Systems 2025-07-24 Junjie Fang , Chao Zhang , Jiancheng An , Hongwen Yu , Qingqing Wu , Mérouane Debbah , Chau Yuen