PCI Express® 6.0 Specification at 64.0 GT/s with PAM-4 signaling: a low latency, high bandwidth, high reliability and cost-effective interconnect

Networking connectivity is increasingly based on wireless network technologies, especially in developing nations where the wired network infrastructure is not accessible to a large segment of the population. Wireless data network technologies based on 2G and 3G are quite common globally; 4G-based deployments are on the rise during the past few years. At the same time, the increasing high-bandwidth and low-latency requirements of mobile applications has propelled the Third Generation Partnership Project (3GPP) standards organization to develop standards for the next generation of mobile networks, based on recent advances in wireless communication technologies. This standard is called the Fifth Generation (5G) wireless network standard. This paper presents a high-level overview of the important architectural components, of the advanced communication technologies, of the advanced networking technologies such as Network Function Virtualization and other important aspects that are part of the 5G network standards. The paper also describes some of the common future generation applications that require low-latency and high-bandwidth communications.

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Machine Learning Oriented Resource Allocation to Achieve Ultra Low Power, Low Latency and High Reliability Vehicular Communication Networks

2020 IEEE 17th India Council International Conference (INDICON) ◽

10.1109/indicon49873.2020.9342584 ◽

2020 ◽

Author(s):

Sasweth C Rajanarayanan ◽

Rohit Misra ◽

Rahul Jashvantbhai Pandya

Keyword(s):

Machine Learning ◽

Resource Allocation ◽

Low Power ◽

Communication Networks ◽

High Reliability ◽

Low Latency ◽

Vehicular Communication ◽

Ultra Low Power ◽

Vehicular Communication Networks

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FOSquare: A Novel Optical HPC Interconnect Network Architecture Based on Fast Optical Switches with Distributed Optical Flow Control

Photonics ◽

10.3390/photonics8010011 ◽

2021 ◽

Vol 8 (1) ◽

pp. 11

Author(s):

Fulong Yan ◽

Changshun Yuan ◽

Chao Li ◽

Xiong Deng

Keyword(s):

Flow Control ◽

Network Architecture ◽

Network Performance ◽

Optical Switches ◽

Low Power Consumption ◽

Low Latency ◽

High Bandwidth ◽

Fast Flow ◽

Real Traffic ◽

Interconnect Network

Interconnecting networks adopting Fast Optical Switches (FOS) can achieve high bandwidth, low latency, and low power consumption. We propose and demonstrate a novel interconnecting topology based on FOS (FOSquare) with distributed fast flow control which is suitable for HPC infrastructures. We also present an Optimized Mapping (OPM) algorithm that maps the most communication-related processes inside a rack. We numerically investigate and compare the network performance of FOSquare with Leaf-Spine under real traffic traces collected by running multiple applications (CG, MG, MILC, and MINI_MD) in an HPC infrastructure. The numerical results show that the FOSquare can reduce >10% latency with respect to Leaf-Spine under the scenario of 16 available cores.

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Secrecy analysis of short-packet transmissions in ultra-reliable and low-latency communications

EURASIP Journal on Wireless Communications and Networking ◽

10.1186/s13638-020-01862-7 ◽

2021 ◽

Vol 2021 (1) ◽

Author(s):

Jianhua He ◽

Guangheng Zhao ◽

Lu Wang ◽

Xue Sun ◽

Lei Yang

Keyword(s):

Power Allocation ◽

High Reliability ◽

Low Latency ◽

Artificial Noise ◽

Secrecy Outage Probability ◽

Secrecy Rate ◽

Single Antenna ◽

Error Probabilities ◽

Short Packet ◽

Allocation Factor

AbstractIn this paper, we investigate the secrecy performance of short-packet transmissions in ultra-reliable and low-latency communications (URLLC). We consider the scenario where a multi-antenna source communicates with a single-antenna legitimate receiver requiring ultra-high reliability and low latency, in the presence of a single-antenna eavesdropper. In order to safeguard URLLC, the source transmits the artificial noise (AN) signal together with the confidential signal to confuse the eavesdropper. We adopt a lower bound on the maximal secrecy rate as the secrecy performance metric for short-packet transmissions in URLLC, which takes the target decoding error probabilities at the legitimate receiver and the eavesdropper into account. Using this metric, we first derive a compact expression of the generalized secrecy outage probability (SOP). Then, we formally prove that the generalized SOP is a convex function with respect to the power allocation factor between the confidential signal and the AN signal. We further determine the optimal power allocation factor that minimizes the generalized SOP. The results presented in this work can be useful for designing new secure transmission schemes for URLLC.

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