Change search
ReferencesLink to record
Permanent link

Direct link
Media Access Control for Wireless Sensor and Actuator Networks
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In a wireless network, the medium is a shared resource. The nodes in the network negotiate access of the shared resource using the Medium Access Control (MAC) protocol. The design of a MAC protocol for a sensor node is not the same as that for a wireless transceiver. Due to the transceiver characteristics, the MAC protocol design is limited in terms of medium access methods. However, in most cases, the protocols rely on simple access methods i.e. Time Division Multiple Access (TDMA) or Carrier Sense Multiple Access / Collision Avoidance (CSMA / CA).

Control and monitoring applications, running over a wireless network, are typical examples of Wireless Sensor Actuator Network (WSAN) application in industries. In an industrial network, the message deliveries must be time-bounded otherwise, they are of no use.

This report aims to present the thesis work carried out at ABB AB, Västerås. The purpose of this thesis was to compare the performance of WLAN and WirelessHART when it comes to control applications. For the purpose of WLAN, the media access schemes are analyzed in terms of deadline misses. There are other metrices for the performance evaluation but our focus was on the latency, since it is very important in the field of industrial automation. NS-2 was used for the purpose of MAC layer analysis and it is also shown that PCF gives better performance as compared to DCF, in terms of deadline misses. Finally, WLAN is proven to accommodate more control loops as compared to WirelessHART for a given scenario. 

Place, publisher, year, edition, pages
2012. , 71 p.
Keyword [en]
National Category
Communication Systems
URN: urn:nbn:se:liu:diva-79348ISRN: LiTH-ISY-EX--12/4603--SEOAI: diva2:540925
External cooperation
Subject / course
Communication Systems
2012-06-15, Filtret, Linköping University, SE-581 83, Linköping, 10:15 (English)
Available from: 2012-07-12 Created: 2012-07-12 Last updated: 2012-07-12Bibliographically approved

Open Access in DiVA

fulltext(1458 kB)771 downloads
File information
File name FULLTEXT01.pdfFile size 1458 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Nabi, Muaz Un
By organisation
Communication SystemsThe Institute of Technology
Communication Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 771 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 823 hits
ReferencesLink to record
Permanent link

Direct link