High-Performance Industrial Wireless: Achieving Reliable and
Deterministic Connectivity over IEEE 802
Abstract
Communication for control-centric industrial applications is
characterized by the requirements of very high reliability, very low and
deterministic latency and high scalability. This paper proposes a novel
solution for providing reliable and deterministic communication, through
Wi-Fi, in industrial environments. The proposed solution, termed as
HAR2D-Fi, adopts hybrid channel access mechanisms for
achieving deterministic communication. It also provides temporal
redundancy for enhanced reliability. HAR2D-Fi
implements different medium access control (MAC) designs that build on
the standard physical (PHY) layer. Such designs can be classified into
two categories: (a) MAC designs with pre-defined (physical) time-slotted
schedule, and (b) MAC designs with virtual time-slotted schedule.
Performance evaluation, based on analysis and system-level simulations,
demonstrates the viability of HAR2D-Fi for
control-centric industrial applications.