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In this paper, we propose and analyze an error-constrained data transmission approach for uplink communication using non-orthogonal multiple access (NOMA). The results are presented for the cases with hybrid automatic repeat request (HARQ)…

信息论 · 计算机科学 2020-06-26 Behrooz Makki , Tommy Svensson , Michele Zorzi

Sparse coding (SC) is an automatic feature extraction and selection technique that is widely used in unsupervised learning. However, conventional SC vectorizes the input images, which breaks apart the local proximity of pixels and destructs…

计算机视觉与模式识别 · 计算机科学 2017-03-29 Fei Jiang , Xiao-Yang Liu , Hongtao Lu , Ruimin Shen

Non-orthogonal multiple access (NOMA) is considered as a promising technology for improving the spectral efficiency (SE) in 5G. In this correspondence, we study the benefit of NOMA in enhancing energy efficiency (EE) for a multi-user…

信息论 · 计算机科学 2016-06-09 Yi Zhang , Hui-Ming Wang , Tong-Xing Zheng , Qian Yang

We propose a novel deep energy autoencoder (EA) for noncoherent multicarrier multiuser single-input multipleoutput (MU-SIMO) systems under fading channels. In particular, a single-user noncoherent EA-based (NC-EA) system, based on the…

信息论 · 计算机科学 2020-02-21 Thien Van Luong , Youngwook Ko , Ngo Anh Vien , Michail Matthaiou , Hien Quoc Ngo

This letter investigates computation offloading and transmit precoding co-design for multi-access edge computing (MEC), where multiple MEC users (MUs) equipped with multiple antennas access the MEC server in a non-orthogonal multiple access…

信息论 · 计算机科学 2023-11-08 Deyou Zhang , Meng Wang , Shuo Shi , Ming Xiao

Data-driven deep learning based code designs, including low-complexity neural decoders for existing codes, or end-to-end trainable auto-encoders have exhibited impressive results, particularly in scenarios for which we do not have…

信息论 · 计算机科学 2023-06-02 Emre Ozfatura , Chenghong Bian , Deniz Gunduz

We investigate the use of sparse coding and dictionary learning in the context of multitask and transfer learning. The central assumption of our learning method is that the tasks parameters are well approximated by sparse linear…

机器学习 · 计算机科学 2014-06-17 Andreas Maurer , Massimiliano Pontil , Bernardino Romera-Paredes

This work proposes a novel location-based multi-group multicast framework which is termed as non-orthogonal multiple access (NOMA) assisted multi-region geocast. This novel spectrum sharing framework exploits the NOMA technology to realize…

信息论 · 计算机科学 2017-11-30 Yi Zhang , Hui-Ming Wang , Zhiguo Ding , Moon Ho Lee

The mobile edge computing framework offers the opportunity to reduce the energy that devices must expend to complete computational tasks. The extent of that energy reduction depends on the nature of the tasks, and on the choice of the…

信息论 · 计算机科学 2019-05-01 Mahsa Salmani , Timothy N. Davidson

Memristive crossbars have become a popular means for realizing unsupervised and supervised learning techniques. In previous neuromorphic architectures with leaky integrate-and-fire neurons, the crossbar itself has been separated from the…

新兴技术 · 计算机科学 2019-01-24 Walt Woods , Christof Teuscher

Recently, deep learned enabled end-to-end (E2E) communication systems have been developed to merge all physical layer blocks in the traditional communication systems, which make joint transceiver optimization possible. Powered by deep…

信号处理 · 电气工程与系统科学 2021-06-09 Huiqiang Xie , Zhijin Qin , Geoffrey Ye Li , Biing-Hwang Juang

Non-orthogonal multiple access (NOMA) schemes have been proved to increase the multiple-access achievable rate with respect to orthogonal multiple access (OMA). In this paper we propose a novel communication system that combines multi-level…

信息论 · 计算机科学 2017-01-23 Beatrice Tomasi , Frédéric Gabry , Valerio Bioglio , Ingmar Land , Jean-Claude Belfiore

Recursive projection aggregation (RPA) decoding as introduced in [1] is a novel decoding algorithm which performs close to the maximum likelihood decoder for short-length Reed-Muller codes. Recently, an extension to RPA decoding, called…

信息论 · 计算机科学 2022-11-03 Johannes Voigt , Holger Jäkel , Laurent Schmalen

In this paper, we investigate a non-orthogonal multiple access (NOMA) based mobile edge computing (MEC) network, in which two users may partially offload their respective tasks to a single MEC server through uplink NOMA. We propose a new…

信息论 · 计算机科学 2019-07-15 Yinghui Ye , Guangyue Lu , Rose Qingyang Hu , Liqin Shi

Multilingual training of neural machine translation (NMT) systems has led to impressive accuracy improvements on low-resource languages. However, there are still significant challenges in efficiently learning word representations in the…

计算与语言 · 计算机科学 2019-02-12 Xinyi Wang , Hieu Pham , Philip Arthur , Graham Neubig

Non-orthogonal multiple access (NOMA) has drawn tremendous attention, being a potential candidate for the spectrum access technology for the fifth-generation (5G) and beyond 5G (B5G) wireless communications standards. Most research related…

信息论 · 计算机科学 2019-11-04 Vaibhav Kumar , Barry Cardiff , Shankar Prakriya , Mark F. Flanagan

Sparse attention as a efficient method can significantly decrease the computation cost, but current sparse attention tend to rely on window self attention which block the global information flow. For this problem, we present Shifted Cross…

计算与语言 · 计算机科学 2023-12-13 Yuxiang Guo

We study whether using non-orthogonal multiple access (NOMA) in the uplink of a mobile network can improve the performance over orthogonal multiple access (OMA) when the system requires ultra-reliable low-latency communications (URLLC). To…

信息论 · 计算机科学 2019-03-25 Sebastian Schiessl , Mikael Skoglund , James Gross

Non-orthogonal multiple access (NOMA) has gained significant attention as a potential next-generation multiple access technique. However, its implementation with finite-alphabet inputs faces challenges. Particularly, due to inter-user…

信息论 · 计算机科学 2025-03-11 Mojtaba Vaezi , Xinliang Zhang

Orthogonal Frequency Division Multiple Access (OFDMA) as well as other orthogonal multiple access techniques fail to achieve the system capacity limit in the uplink due to the exclusivity in resource allocation. This issue is more prominent…

信息论 · 计算机科学 2017-05-12 Mohammed Al-Imari , Pei Xiao , Muhammad Ali Imran , Rahim Tafazolli