LUPMAC: A cross-layer MAC technique to improve the age of information over dense WLANs
Author
Summary, in English
Age of Information (AoI) is a relatively new metric introduced to capture the freshness of a particular piece of information. While throughput and delay measurements are widely studied in the context of dense IEEE 802.11 Wireless LANs (WLANs) little is known in the literature about the AoI in this context. In this work we study the effects on the average AoI and its variance when a sensor node is immersed in a dense IEEE 802.11 WLAN. We also introduce a new cross layer MAC technique called Latest UPdate MAC (LUPMAC) aimed at modifying the existing IEEE 802.11 in order to minimize the average AoI at the receiver end. This technique lets the MAC layer keep only the most up to date packets of a particular piece of information in the buffer. We show, through simulation, that this technique achieves significant advantages in the case of a congested dense IEEE 802.11 WLAN, and it is resilient to changes in the variance of the total network delay.
Department/s
Publishing year
2016
Language
English
Pages
724-729
Full text
- Available as PDF - 321 kB
- Download statistics
Document type
Conference paper
Topic
- Telecommunications
Keywords
- Age of information
- IEEE 802.11
- Dense WLANs
Conference name
23rd International Conference on Telecommunications (ICT), 2016
Conference date
2016-05-16 - 2016-05-18
Conference place
Thessaloniki, Greece
Status
Published
Project
- ELLIIT LU P01: WP2 Networking solutions
Research group
- Networking