Title :
Delay analysis and improvement of IEEE 802.11e-based Soft-Real-Time Wireless Industrial Networks: Using an open-loop Spatial Multiplexing scheme
Author :
Maadani, Mohsen ; Motamedi, Seyed Ahmad ; Noshari, Mostafa Mohammadi
Author_Institution :
Dept. of Eng., Islamic Azad Univ., Tehran, Iran
Abstract :
One of the main challenges in wireless industrial networks is the delay caused by shared, error-prone and non-deterministic behavior of wireless communication medium. In this paper, delay statistics of IEEE 802.11e prioritized MAC layer and the improvement caused by using a Spatial Multiplexing (SM) scheme for the IEEE 802.11e-based Soft-Real-Time Wireless Industrial Networks has been analyzed. Using this scheme, real-time traffic delay has been significantly reduced, compared with traditional IEEE 802.11e.
Keywords :
access protocols; delays; radio receivers; space division multiplexing; telecommunication standards; wireless LAN; EDCA; IEEE 802.11e; MAC layer; delay analysis; delay statistics; enhanced distributed channel access; maximum likelihood receivers; open-loop spatial multiplexing scheme; realtime traffic delay reduction; soft realtime wireless industrial networks; wireless LAN; Delay; IEEE 802.11 Standards; MIMO; Multiplexing; Signal to noise ratio; Wireless LAN; Wireless communication; Maximum Likelihood Receiver; Soft-Real-Time; Spatial Multiplexing; Wireless Industrial Network;
Conference_Titel :
Computer Networks and Distributed Systems (CNDS), 2011 International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4244-9153-7
DOI :
10.1109/CNDS.2011.5764568
