Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput?

Barakat, Basel, Keates, Simeon, Wassell, Ian J. and Arshad, Kamran (2019) Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput? IEEE Communications Letters, 23 (6). pp. 987-990. ISSN 1089-7798

Full text not available from this repository.

Abstract

The zero-wait (ZW) policy is widely held to achieve maximum information “freshness”, i.e., to achieve minimum peak age (PA) and maximum throughput, for real-time Internet-of-Things applications. In this letter, it was shown through a series of experiments that the ZW policy is not necessarily the optimum policy for freshness or throughput in all real-world scenarios. First, the effect of delay on the ZW policy was shown on a local area network (LAN). Afterward, the server was located on the Internet, and it was shown that the ZW policy incurred a two-fold PA and throughput performance degradation compared with continuously sending status updates.

Item Type: Article
Additional Information: Department of Engineering and Design
Uncontrolled Keywords: Computer software; Systems analysis, design and performance; Real-Time Systems; Status Update; Information Freshness; Peak Age of information; Zero-Wait Policy
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Z Bibliography. Library Science. Information Resources > ZA Information resources > ZA4050 Electronic information resources
Related URLs:
Depositing User: Simeon Keates
Date Deposited: 01 Dec 2020 11:23
Last Modified: 01 Dec 2020 11:44
URI: http://eprints.chi.ac.uk/id/eprint/5550

Actions (login required)

View Item View Item