DeepAI AI Chat
Log In Sign Up

On Performance Evaluation of Random Access Enhancements for 5G uRLLC

by   Jayashree Thota, et al.

One of the key challenges in realizing ultra-reliable low-latency communications (uRLLC) for factories-of-the-future (FoF) applications is to enhance the cellular random access channel (RACH) procedure. The state-of-the-art LTE RACH procedure does not fulfil the latency requirements for envisioned FoF applications. Moreover, it becomes challenging due to congestion and overloading from massive machine type communication (mMTC) devices leading to collisions especially in a densely populated factory scenarios. The main objective of this paper is to conduct a comprehensive performance evaluation of different random access (RA) enhancements for uRLLC over 5G wireless networks. Our performance evaluation is based on a realistic system-level simulator. The core enhancements considered in this work include early data transmission (EDT), reserved preambles and the use of flexible physical (PHY) layer numerology. We also propose three new RA enhancements for uRLLC. Performance evaluation demonstrates that the proposed RA enhancements can fulfil the 3GPP control plane target of less than 10 ms latency with 99.99 reliability in factory environments.


High Reliability and Low Latency for Vehicular Networks: Challenges and Solutions

In recent years, wireless networks are undergoing the paradigm transform...

A Performance Evaluation Tool for Drone Communications in 4G Cellular Networks

We introduce a measurement tool for performance evaluation of wireless c...

Jamming Resilient Indoor Factory Deployments: Design and Performance Evaluation

In the framework of 5G-and-beyond Industry 4.0, jamming attacks for deni...

High-Performance Industrial Wireless: Achieving Reliable and Deterministic Connectivity over IEEE 802.11 WLANs

Communication for control-centric industrial applications is characteriz...

Performance Evaluation for the Co-existence of eMBB and URLLC Networks: Synchronized versus Unsynchronized TDD

To ensure the high level of automation required in today's industrial ap...

A Physical Layer Model for the Performance Evaluation of V2X Communication

Recent advancements in V2X communications have greatly increased the fle...

Analysis and Performance Evaluation of Conditional Handover in 5G Beamformed Systems

Higher frequencies that are introduced into 5G networks cause rapid sign...