scholarly journals Performance Evaluation on Packet Transmission for Distributed Real-time Avionics Networks Using Forward End-to-End Delay Analysis

2021 ◽  
Vol 64 (1) ◽  
pp. 1-12
Author(s):  
Qingfei XU ◽  
Xinyu YANG
Keyword(s):  
Performance Evaluation ◽  
Real Time ◽  
Packet Transmission ◽  
Delay Analysis ◽  
End To End Delay ◽  
End To End

Evaluating The Performance for DCF Protocol and EDCA Protocol

2015 ◽  
Vol 72 (5) ◽  
Author(s):  
Ahmed Abu-Khadrah ◽  
Zahriladha Zakaria ◽  
Mohdazlishah Othman
Keyword(s):  
Real Time ◽  
Packet Loss ◽  
Area Network ◽  
Distributed Coordination ◽  
Data Types ◽  
End To End Delay ◽  
Main Challenge ◽  
Qos Parameters ◽  
End To End ◽  
Coordination Function

Nowadays supporting quality of service (QOS) for real time application is the main challenge of the wireless area network. 802.11standards use distributed Coordination Function (DCF) protocol and Enhanced Distributed Channel Access (EDCA) protocol in the MAC layer. DCF protocol has only one queue for different data types, it deals with data depending on the arriving time. There is no priority to serve real time applications faster. However EDCA protocol has four queues and each queue works with specific data type. Voice, video, best effort and background are the different queues in the EDCA protocol. Different parameters and priorities are defined for each queue. The voice queue reserves the highest priority and serves its data first. In this paper QOS parameters are measured for both DCF and EDCA protocol by using OPNET simulation. The QOS parameters must reach the requirements to support QOS. The results show how QOS parameters do not reach the requirements when using DCF protocol. The values of the end to end delay and the packet loss percentage are 0.514second, 19.04% respectively. But, when using EDCA protocol the end to end delay becomes 0.0624 second and the percentage of the packet loss decreases until reach 0.00617%. So the QOS parameters achieve requirements with EDCA protocol and support QOS.

Deterministic end-to-end delay analysis in an avionics network

2012 ◽  
Vol 227 (10) ◽  
pp. 1583-1595
Author(s):  
Hairui Zhou ◽  
Jian Li ◽  
Chengchen Hu ◽  
Xiaoqiang Ji ◽  
Lina He ◽  
...  
Keyword(s):  
Delay Analysis ◽  
End To End Delay ◽  
End To End
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