Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/93826
Author(s): | Raimundo Viegas L. A. Guedes Francico Vasques Paulo Portugal Ricardo Moraes Luiz Affonso |
Title: | Real-time industrial communication over IEEE802.11e wireless local area networks |
Issue Date: | 2012 |
Abstract: | This paper proposes a real-time communication scheme for wireless local area network (WLAN) infrastructure. This strategy was called Group Sequential Communication (GSC). The GSC has the main goal to reduce the network overhead due to the Polling, Ack and QoS Null Frames of Hybrid Coordination Function Controlled Channel Access (HCCA) in IEEE 802.11e, because it uses a Virtual Token Passing procedure to priority the real-time communication over WLAN. In order to improve the confiability of the new scheme is presented a fault-tolerant mechanism based on Block-Ack strategy to avoid missing real-time messages. The GSC was implemented in NS2 and simulation results have proved the superior performance of GSC in comparison with HCCA for real-time industrial communications. |
Subject: | Engenharia electrotécnica Electrical engineering |
URI: | https://repositorio-aberto.up.pt/handle/10216/93826 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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65052.pdf Restricted Access | 876.91 kB | Adobe PDF | Request a copy from the Author(s) |
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