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To cope with the explosive traffic growth of next-generation wireless communications, it is necessary to design next-generation multiple access techniques that can provide higher spectral efficiency as well as larger-scale connectivity. As…

信息论 · 计算机科学 2021-07-28 Xinyue Pei , Yingyang Chen , Miaowen Wen , Hua Yu , Erdal Panayirci , H. Vincent Poor

In conventional multi-user multiple-input multiple-output (MU-MIMO) systems with frequency division duplexing (FDD), channel acquisition and precoder optimization processes have been designed separately although they are highly coupled.…

信息论 · 计算机科学 2022-09-22 Jeonghyeon Jang , Hoon Lee , Il-Min Kim , Inkyu Lee

Solid-state storage architectures based on NAND or emerging memory devices (SSD), are fundamentally architected and optimized for both reliability and performance. Achieving these simultaneous goals requires co-design of memory components…

硬件体系结构 · 计算机科学 2026-03-20 Jay Sarkar , Vamsi Pavan Rayaprolu , Abhijeet Bhalerao

In this letter, we propose an autoencoder (AE) for designing Grassmannian constellations in noncoherent (NC) multiple-input multiple-output (MIMO) systems. To guarantee the properties of Grassmannian constellations, the proposed AE…

信息论 · 计算机科学 2021-09-07 Xiaotian Fu , Didier Le Ruyet

We consider the problem of intelligent and efficient resource management framework in mobile edge computing (MEC), which can reduce delay and energy consumption, featuring distributed optimization and efficient congestion avoidance…

网络与互联网体系结构 · 计算机科学 2020-06-09 Xiaoxiong Zhong , Xinghan Wang , Li Li , Yuanyuan Yang , Yang Qin , Tingting Yang , Bin Zhang , Weizhe Zhang

Obtaining accurate and timely channel state information (CSI) is a fundamental challenge for large antenna systems. Mobile systems like 5G use a beam management framework that joins the initial access, beamforming, CSI acquisition, and data…

信号处理 · 电气工程与系统科学 2024-03-06 Ryan M. Dreifuerst , Robert W. Heath

This paper proposes a unified framework of non-orthogonal multiple access (NOMA) networks. Stochastic geometry is employed to model the locations of spatially NOMA users. The proposed unified NOMA framework is capable of being applied to…

信息论 · 计算机科学 2019-01-23 Xinwei Yue , Zhijin Qin , Yuanwei Liu , Shaoli Kang , Yue Chen

Bit-level sparsity in neural network models harbors immense untapped potential. Eliminating redundant calculations of randomly distributed zero-bits significantly boosts computational efficiency. Yet, traditional digital SRAM-PIM…

硬件体系结构 · 计算机科学 2024-04-16 Cenlin Duan , Jianlei Yang , Yiou Wang , Yikun Wang , Yingjie Qi , Xiaolin He , Bonan Yan , Xueyan Wang , Xiaotao Jia , Weisheng Zhao

Using precoding to suppress multi-user interference is a well-known technique to improve spectra efficiency in multiuser multiple-input multiple-output (MU-MIMO) systems, and the pursuit of high performance and low complexity precoding…

信息论 · 计算机科学 2022-07-11 Maojun Zhang , Jiabao Gao , Caijun Zhong

Beam codebooks are integral components of the future millimeter wave (mmWave) multiple input multiple output (MIMO) system to relax the reliance on the instantaneous channel state information (CSI). The design of these codebooks, therefore,…

信息论 · 计算机科学 2024-01-17 Yu Zhang , Ahmed Alkhateeb

Sparse code multiple access (SCMA) is a promising multiuser communication technique for the enabling of future massive machine-type networks. Unlike existing codebook design schemes assuming uniform power allocation, we present a novel…

信息论 · 计算机科学 2021-10-11 Xudong Li , Zhicheng Gao , Yiming Gui , Zilong Liu , Pei Xiao , Lisu Yu

To mitigate computational power gap between the network core and edges, mobile edge computing (MEC) is poised to play a fundamental role in future generations of wireless networks. In this letter, we consider a non-orthogonal multiple…

信息论 · 计算机科学 2023-10-16 Vaibhav Kumar , Muhammad Fainan Hanif , Markku Juntti , Le-Nam Tran

This article introduces a novel non-orthogonal multiple access (NOMA) scheme for coordinated uplink channels. The scheme builds on the recently proposed sparse-regression low-density parity-check (SR-LDPC) code, and extends the underlying…

信息论 · 计算机科学 2024-10-23 Jamison R. Ebert , Jean-Francois Chamberland , Krishna R. Narayanan

We propose a novel nonorthogonal multiple access (NOMA) scheme referred as adaptive constellation multiple access (ACMA) which addresses key limitations of existing NOMA schemes for beyond 5G wireless systems. Unlike the latter, that are…

信息论 · 计算机科学 2024-03-01 Indu L. Shakya , Falah H. Ali

This paper designs a helper-assisted resource allocation strategy in non-orthogonal multiple access (NOMA)-enabled mobile edge computing (MEC) systems, in order to guarantee the quality of service (QoS) of the energy/delay-sensitive user…

信息论 · 计算机科学 2023-01-26 Mengmeng Ren , Long Yang , Hai Jiang , Jian Chen , Yuchen Zhou

Exploiting the idle computation resources of mobile devices in mobile edge computing (MEC) system can achieve both channel diversity and computing diversity as mobile devices can offload their computation tasks to nearby mobile devices in…

信息论 · 计算机科学 2020-01-01 Yuwen Huang , Yuan Liu , Fangjiong Chen

International Classification of Diseases (ICD) are the de facto codes used globally for clinical coding. These codes enable healthcare providers to claim reimbursement and facilitate efficient storage and retrieval of diagnostic…

计算与语言 · 计算机科学 2022-02-22 Pavithra Rajendran , Alexandros Zenonos , Josh Spear , Rebecca Pope

In the age of data revolution, a modern storage~or transmission system typically requires different levels of protection. For example, the coding technique used to fortify data in a modern storage system when the device is fresh cannot be…

信息论 · 计算机科学 2025-12-29 Doğukan Özbayrak , Ahmed Hareedy

We present a new family of signal constellations, called log constellations, that can be used to design near-capacity coded modulation schemes over additive exponential noise (AEN) channels. Log constellations are designed by geometrically…

信息论 · 计算机科学 2011-11-29 Stéphane Y. Le Goff

In this paper, we demonstrate a computationally efficient new approach based on deep learning (DL) techniques for analysis, design, and optimization of electromagnetic (EM) nanostructures. We use the strong correlation among features of a…

机器学习 · 计算机科学 2020-02-13 Yashar Kiarashinejad , Sajjad Abdollahramezani , Ali Adibi