Traffic-prediction-assisted dynamic bandwidth assignment for hybrid optical wireless networks

2012 ◽  
Vol 56 (1) ◽  
pp. 244-259 ◽  
Author(s):  
Maysam Mirahmadi ◽  
Abdallah Shami
Author(s):  
Huifang Feng ◽  
Maode Ma

The predictability of network traffic is an important and widely studied topic because it can lead to the solutions to get more efficient dynamic bandwidth allocation, admission control, congestion control and better performance of wireless networks. In this chapter, firstly, the authors briefly describe a number of traffic models that include time series models, artificial neural networks models, wavelet-based models, and support vector machine-based models. Secondly, they give the prediction method and metrics of measuring the accuracy of a prediction. Finally, they examine the feasibility of applying support vector machine into the prediction of actual traffic in WLANs and evaluate the performance of different prediction models such as ARIMA, FARIMA, and artificial neural network, wavelet-based and support vector machine-based models for the prediction of the real WLANs traffic.


Author(s):  
Julio Cesar T. Guimaraes ◽  
Henrique D. Moura ◽  
Jonas R. A. Borges ◽  
Marcos A. M. Vieira ◽  
Luiz F. M. Vieira ◽  
...  

2002 ◽  
Vol 3 (3) ◽  
pp. 30-49 ◽  
Author(s):  
Matthew Andrews ◽  
Simon C. Borst ◽  
Francis Dominique ◽  
Predrag R. Jelenkovic ◽  
Krishnan Kumaran ◽  
...  

2020 ◽  
Vol 41 (3) ◽  
pp. 279-293 ◽  
Author(s):  
Rizwan Aslam Butt ◽  
M. Waqar Ashraf ◽  
M Faheem ◽  
Sevia M Idrus

AbstractIn time division, multiple access (TDMA)-based passive optical network (PONs), a dynamic bandwidth assignment (DBA) is necessary for efficient utilization of the available bandwidth of the upstream link. An efficient DBA scheme can improve the upstream performance of a traffic class of an ONU in two ways. First, it can increase the bandwidth assignment to it by efficiently utilizing the available bandwidth. Secondly, it can reduce the channel and frame idle time by increasing the polling frequency and by assigning extra surplus bandwidth not used by the other ONUs. Many DBA schemes have been reported for both ITU PONs (GPON and XGPON) and IEEE PONs (EPON and 10 G EPON). In this study, we explain the impact of DBA scheme on the upstream performance of PON and then do a thorough survey of both PON standards, categorize the DBA schemes and review them critically. Based on the literature review we also give our opinion on the most suitable DBA scheme for both type PONs on the basis of upstream delays, frame loss and bandwidth utilization efficiency.


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