Self-organized call admission control for optical communication networks

2008 ◽  
Author(s):  
Bing Zuo ◽  
Lei Liu ◽  
Jian Wu ◽  
Jintong Lin
Keyword(s):  
Admission Control ◽  
Communication Networks ◽  
Optical Communication ◽  
Call Admission Control ◽  
Call Admission ◽  
Self Organized

scholarly journals B&W Call Admission Control for Multimedia Communication Networks

2019 ◽  
Vol 7 (6) ◽  
pp. 52-58
Author(s):  
Lain-Chyr Hwang ◽  
San-Yuan Wang
Keyword(s):  
Signal Processing ◽  
Admission Control ◽  
Communication Networks ◽  
Communication Systems ◽  
Call Admission Control ◽  
Multimedia Communication ◽  
Heterogeneous Traffic ◽  
The Other ◽  
Call Admission ◽  
Signal Processing Systems

In the multimedia communication networks providing quality of service (QoS), an interface between the signal processing systems and the communication systems is the call admission control (CAC) mechanism. Owing to the heterogeneous traffic produced by diverse signal processing systems in a multimedia communication network, the traditional CAC mechanism that used only one CAC algorithm can no longer satisfy the aim of QoS CAC: Utilize the network resource to the most best and still satisfy the QoS requirements of all connections. For satisfying the aim of QoS CAC in the multimedia communication networks, this study proposed an innovative CAC mechanism called black and white CAC (B&W CAC), which uses two CAC algorithms. One of them is called black CAC controller and is used for the traffic with specifications more uncertain, which is called black traffic here. The other is call white CAC controller and is for the traffic with clearer specifications, which is call white traffic. Because white traffic is simple, an equivalent bandwidth CAC is taken as the white CAC. On the other hand, a neural network CAC (NNCAC) is employed to be the black CAC to overcome the uncertainty of black traffic. Furthermore, owing to more parameters needed in a QoS CAC mechanism, a hierarchical NNCAC is proposed instead of the common used NNCAC. Besides to accommodate more parameters, a hierarchical NNCAC can keep the complexity low. The simulation results show the B&W CAC can obtain higher utilization and still meet the QoS requirements of traffic sources.

scholarly journals Dynamic Threshold-based Congestion Control in Wireless Multimedia Networks

2013 ◽  
Vol 2 (3) ◽  
pp. 200
Author(s):  
Cuthbert Abigaba Mirembe ◽  
Roselyn Nyongarwizi Akol ◽  
Julius Butime
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Admission Control ◽  
Communication Networks ◽  
Call Admission Control ◽  
Control Policy ◽  
Dynamic Threshold ◽  
Wireless Multimedia ◽  
Call Admission

The last few decades have seen a tremendous growth of wireless networks demands due to the need to meet different multimedia applications available over the network. The demand has resulted into greater competition for the scarce available network resources and has introduced congestion in such networks that adversely affect the quality of service requirements of the applications. Call admission control is a key element if provision of quality of service in wireless networks is to be guaranteed. In this paper, a call admission control policy for wireless communication networks based on the use of dynamic threshold-based channel allocation scheme is proposed. The scheme deals with two traffic classes; voice and data with two different but equal channel thresholds, one for each traffic type assumed. The effect of the control parameters on the quality of service parameters is illustrated and analyzed.

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