Results 21 to 30 of about 9,286,337 (340)
Random Access With Massive MIMO-OTFS in LEO Satellite Communications [PDF]
IEEE Journal on Selected Areas in Communications, 2022 This paper considers the joint channel estimation and device activity detection in the grant-free random access systems, where a large number of Internet-of-Things devices intend to communicate with a low-earth orbit satellite in a sporadic way.
Boxiao Shen +5 more
semanticscholar +1 more source
Electrical programmable multilevel nonvolatile photonic random-access memory [PDF]
Light: Science & Applications, 2022 Photonic Random-Access Memories (P-RAM) are an essential component for the on-chip non-von Neumann photonic computing by eliminating optoelectronic conversion losses in data links. Emerging Phase-Change Materials (PCMs) have been showed multilevel memory
Jiawei Meng +12 more
semanticscholar +1 more source
Clustering-Based Activity Detection Algorithms for Grant-Free Random Access in Cell-Free Massive MIMO [PDF]
IEEE Transactions on Communications, 2021 Future wireless networks need to support massive machine type communication (mMTC) where a massive number of devices accesses the network and massive MIMO is a promising enabling technology. Massive access schemes have been studied for co-located massive
Unnikrishnan Kunnath Ganesan +2 more
semanticscholar +1 more source
A compute-in-memory chip based on resistive random-access memory
Nature, 2022 Realizing increasingly complex artificial intelligence (AI) functionalities directly on edge devices calls for unprecedented energy efficiency of edge hardware. Compute-in-memory (CIM) based on resistive random-access memory (RRAM)1 promises to meet such
W. Wan +13 more
semanticscholar +1 more source
Random Power Back-Off for Random Access in 5G Networks
IEEE Access, 2021 In the massive Machine Type Communications (mMTC) scenario of the 5G network, a huge number of devices communicate with each other. The massive access requests will cause frequent access collisions, which will reduce the efficiency of Random Access (RA ...
Yijun Piao, Yunmin Kim, Tae-Jin Lee
doaj +1 more source
Program Algebra for Random Access Machine Programs
Scientific Annals of Computer Science, 2022 This paper presents an algebraic theory of instruction sequences with instructions for a random access machine (RAM) as basic instructions, the behaviours produced by the instruction sequences concerned under execution, and the interaction ...
Cornelis Middelburg
doaj +1 more source
NB-IoT Random Access for Nonterrestrial Networks: Preamble Detection and Uplink Synchronization [PDF]
IEEE Internet of Things Journal, 2021 The satellite component is recognized as a promising solution to complement and extend the coverage of future Internet of Things (IoT) terrestrial networks (TNs).
H. Chougrani +3 more
semanticscholar +1 more source
A computing-in-memory macro based on three-dimensional resistive random-access memory
Nature Electronics, 2022 Non-volatile computing-in-memory macros that are based on two-dimensional arrays of memristors are of use in the development of artificial intelligence edge devices.
Qiang Huo +18 more
semanticscholar +1 more source
Sensors, 2023 As IoT services become more active, the density of IoT devices is increasing, and massive connectivity technology is needed to support numerous devices simultaneously.
Minjoong Rim
doaj +1 more source
Random access transport capacity [PDF]
IEEE Transactions on Wireless Communications, 2010 Submitted to IEEE Trans.
Jeffrey G. Andrews +3 more
openaire +4 more sources