On relaying for wireless industrial communications: Is careful placement of relayers strictly necessary?
2012 (English)In: IEEE International Workshop on Factory Communication Systems - Proceedings, WFCS, Piscataway, NJ: IEEE Press, 2012, 191-200 p.Conference paper (Refereed)
Relaying is a very promising technique to improve the reliability of data transmission in wireless (industrial) networks. With relaying, relay nodes support source nodes in carrying out retransmissions. A common assumption is that relayers should be placed at “good” positions (e.g. in the middle between source and destination) to achieve benefits. In this paper we tackle the question of whether it is strictly necessary to place relayers at “good” positions (which often requires extensive measurements). We present results indicating that the benefits of relaying are achievable even with randomly placed relayers, as long as enough of them are deployed. Specifically, we present results suggesting that with a sufficient (and still not too high) number of randomly deployed relayers, the probability that all packets, sent by source nodes to a central controller in a TDMA round, reach the controller is larger than for the case with source-only retransmissions. This finding holds true both in the absence and the presence of feedback. © 2012 IEEE.
Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Press, 2012. 191-200 p.
Industrial wireless communications, relaying
IdentifiersURN: urn:nbn:se:hh:diva-19678DOI: 10.1109/WFCS.2012.6242567ScopusID: 2-s2.0-84866508739ISBN: 978-1-4673-0693-5ISBN: 978-146731573-9OAI: oai:DiVA.org:hh-19678DiVA: diva2:555238
IEEE International Workshop on Factory Communication Systems, Lemgo/Detmold, Germany, 21-24 May, 2012
©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.2012-10-042012-09-192014-11-17Bibliographically approved