Title :
An adaptive retry-limit scheme for real-time IEEE 802.11 based wireless industrial networks
Author :
Maadani, Mohsen ; Motamedi, Seyed Ahmad
Author_Institution :
Dept. of Eng., Islamic Azad Univ., Tehran, Iran
Abstract :
Being reliable and real-time, are the two most challenging requirements of wireless industrial networks due to the shared, error-prone and non-deterministic behaviour of wireless communication medium. Retry-Limit (RL) parameter of IEEE 802.11 standard directly effects on the packet reliability, whereas other parameters mostly effect on packet delay. In this paper, at first the delay-reliability trade-off in wireless industrial networks based on IEEE 802.11 standard, utilizing Enhanced Distributed Channel Access (EDCA) at Medium Access Control (MAC) layer has been studied. Then a simple adaptive retry-limit scheme to minimize packet delay while satisfying the required reliability at low signal to noise ratios (SNR´s) is proposed.
Keywords :
IEEE standards; access protocols; telecommunication network reliability; wireless LAN; EDCA; IEEE 802.11 standard; MAC layer; RL parameter; SNR; adaptive retry-limit scheme; enhanced distributed channel access; medium access control layer; packet delay minimization; packet reliability; real-time IEEE 802.11-based wireless industrial networks; retry-limit parameter; shared-error-prone-nondeterministic behaviour; signal-to-noise ratios; wireless communication medium; Delay; IEEE 802.11 Standards; Payloads; Reliability; Signal to noise ratio; Wireless communication; Delay; IEEE 802.11; Reliability; Retry Limit; Wireless Industrial Network;
Conference_Titel :
Computer Science & Education (ICCSE), 2012 7th International Conference on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4673-0241-8
DOI :
10.1109/ICCSE.2012.6295071
