Industrial Wireless Sensor Networks

8

Network Architectures for Delay Critical Industrial Wireless Sensor Networks

Nazif Cihan Tas

Siemens Corporation, Corporate Research and Technology

CONTENTS

8.1    Introduction

8.2    Industrial Applications and Settings

8.2.1    IWSN Applications

8.2.1.1    Monitoring Applications

8.2.1.2    Cable Replacement Applications

8.2.2    Why (and Why Not) Wireless in an I(W)SN?

8.3    A View on a Distributed Control System

8.3.1    Challenges in IWSNs

8.4    Delay Sensitive Networks

8.4.1    Proposed Mechanisms

8.4.1.1    Early Retirement (ER)

8.4.1.2    Variable Redundancy Error Correction (PHY+)

8.4.1.3    Enhanced MAC for Delay Sensitive Networks MAC+)

8.4.2    Simulations

8.4.2.1    ER and PHY+ Simulations ...