Results 291 to 300 of about 9,286,337 (340)

A perspective on massive random-access

2017 IEEE International Symposium on Information Theory (ISIT), 2017
This paper discusses the contemporary problem of providing multiple-access (MAC) to a massive number of uncoordinated users. First, we define a random-access code for Ka-user Gaussian MAC to be a collection of norm-constrained vectors such that the noisy sum of any K a of them can be decoded with a given (suitably defined) probability of error.
Yury Polyanskiy
openaire   +2 more sources

Simple Random Access Compression

Fundamenta Informaticae, 2009
Given a sequence S of n symbols over some alphabet Σ of size σ, we develop new compression methods that are (i) very simple to implement; (ii) provide O(1) time random access to any symbol (or short substring) of the original sequence. Our simplest solution uses at most 2h+o(h) bits of space, where h = n(H $_{0}$ (S)+1), and H $_{0}$ (S) is the zeroth ...
Kimmo Fredriksson, Fedor Nikitin
openaire   +1 more source

Phase Change Random Access Memory for Neuro‐Inspired Computing

Advanced Electronic Materials, 2021
Neuro‐inspired computing using emerging memristors plays an increasingly significant role for the realization of artificial intelligence and thus has attracted widespread interest in the era of big data.
Qiang Wang, G. Niu, Wei Ren, Ruobing Wang, Xiaogang Chen, Xi Li, Z. Ye, Yahong Xie, Sannian Song, Zhitang Song   +9 more
semanticscholar   +1 more source

Application of Resistive Random Access Memory in Hardware Security: A Review

Advanced Electronic Materials, 2021
Nowadays, advancements in the design of trusted system environments are relying on security provided by hardware‐based primitives, while replacing resource‐hungry software security measures. Emerging nonvolatile memory devices are promising candidates to
Gokulnath Rajendran, W. Banerjee, A. Chattopadhyay, M. Aly   +3 more
semanticscholar   +1 more source

A Survey on Random Access Protocols in Direct-Access LEO Satellite-Based IoT Communication

IEEE Communications Surveys and Tutorials
Low-Earth orbit (LEO) satellites can play an important role in providing seamless coverage for the Internet of Things (IoT). In satellite-based IoT (SIoT) networks, IoT devices can communicate directly with a satellite or through a gateway, which is ...
Thien Thi Thanh Le, N. Hassan, Xiaoming Chen, M. Alouini, Zhu Han, Chau Yuen   +5 more
semanticscholar   +1 more source

On Fundamental Limits of Slow-Fluid Antenna Multiple Access for Unsourced Random Access

IEEE Wireless Communications Letters
Massive connectivity in future networks demands fundamental advancements in multiple access techniques. Notably, unsourced random access (URA) and fluid antenna multiple access (FAMA) offer significant capacity improvements through coding gain and ...
Zhentian Zhang, kai-kit Wong, J. Dang, Zaichen Zhang, C. Masouros, Chan-Byoung Chae   +5 more
semanticscholar   +1 more source

Coding for Random-Access Memories

IEEE Transactions on Computers, 1978
A new decoding technique is presented for correcting errors due to bit-oriented hardware failures in parallel, random-access memories. It is shown that the resulting decoder compares favorably, both in complexity and in decoding delay, with currently implemented bit-switching techniques used for the same purpose.
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Random Access

Journal of Visual Impairment & Blindness, 1984
This new monthly section highlights the impact of technological development on consumers and the blindness/visual impairment field. We need your support. Please send news, reviews, and descriptions of new hardware, software, interfacing ideas, prototypes, training programs, job opportunities, volunteer usage, user evaluations, educational opportunities,
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Magnetoresistive Random Access Memory

Spintronics Handbook: Spin Transport and Magnetism, Second Edition, 2019
Introduction Magnetoresistive Random Access Memory (MRAM) combines a magnetic device with standard silicon-based microelectronics to obtain the combined attributes of non-volatility, high-speed operation and unlimited read and write endurance not found ...
J. Åkerman
semanticscholar   +1 more source

Magnetoresistive Random Access Memory: Present and Future

IEEE Transactions on Electron Devices, 2020
Magnetoresistive random access memory (MRAM) is regarded as a reliable persistent memory technology because of its long data retention and robust endurance.
S. Ikegawa, F. Mancoff, J. Janesky, S. Aggarwal   +3 more
semanticscholar   +1 more source