Title :
The effects of relay behavior and position in wireless industrial networks
Author :
Girs, Svetlana ; Uhlemann, Elisabeth ; Björkman, Mats
Author_Institution :
Malardalen Univ., Vasteras, Sweden
Abstract :
In wireless industrial networks, providing reliable and timely communication is crucial. Previous research has shown that relaying can be used to achieve this goal. However, we have found that different types of wireless channels encountered in industrial environments affect the benefits as well as the best behavior and position of relay nodes. We consider two types of behavior: the relay node always retransmits or it only retransmits if it has obtained a correct copy of the packet. We evaluate different positions of the relay node by conducting simulations for two types of fading channels: with and without line of sight. The results clearly show that the benefits, the best behavior and position of a relay node depends on the wireless channel, whether or not the bit errors appear randomly or in bursts and also on the distance between the source and the final destination.
Keywords :
fading channels; radio networks; bit errors; fading channels; relay behavior effect; relay node position; wireless channels; wireless industrial networks; Automatic repeat request; Forward error correction; Rayleigh channels; Relays; Wireless communication; Wireless sensor networks;
Conference_Titel :
Factory Communication Systems (WFCS), 2012 9th IEEE International Workshop on
Conference_Location :
Lemgo
Print_ISBN :
978-1-4673-0693-5
DOI :
10.1109/WFCS.2012.6242566