scholarly journals Implementation of Extra Efficient Bandwidth Utilization Dynamic Bandwidth Allocation Algorithm to support Differentiated service classes in XGPON

2021 ◽  
Author(s):  
Theresal Thangappan ◽  
Brintha Therese
Keyword(s):  
Bandwidth Allocation ◽  
Access Network ◽  
Dynamic Bandwidth Allocation ◽  
Differentiated Service ◽  
Bandwidth Utilization ◽  
Efficient Utilization ◽  
Traffic Class ◽  
Simulation Results ◽  
Dynamic Bandwidth ◽  
Bandwidth Allocation Algorithm

Abstract Dynamic Bandwidth Allocation (DBA) algorithm is necessary for the efficient utilization of bandwidth in XG-PON. Most of the existing DBA algorithms have not utilized the unused bandwidth of a queue with other service classes queue. The Efficient Bandwidth Utilization (EBU) uses a Borrow Refund (BR) method in the update operation to use the unused bandwidth between a traffic class queue of which has some flaws in the BR method. The EBU mechanism causes a reduction in the allocation of bandwidth and increases the delay for the next traffic class. This paper presents an Extra Efficient Bandwidth Utilization (EEBU) algorithm, which overcomes the limitations mentioned above with proper polling and scheduling mechanism. The theoretical and simulation results show that EEBU improvements for T-CONT 2 delay are 1% and 10%, and for T-CONT 3 delay are 8% and 22%, and for T-CONT 4 delay by 6% and 4.5% compared to the EBU and Giga PON access network (GIANT) respectively.

scholarly journals Cloud radio access network fronthaul solution using optimized dynamic bandwidth allocation algorithm

2021 ◽  
Vol 11 (2) ◽  
pp. 1395
Author(s):  
Ebude Carine Awasume ◽  
Stephen Musyoki ◽  
Vitalice Kalecha Oduol
Keyword(s):  
Network Management ◽  
Bandwidth Allocation ◽  
Access Network ◽  
Cost Effective ◽  
Dynamic Bandwidth Allocation ◽  
Radio Access Network ◽  
Cloud Radio Access Network ◽  
Radio Access ◽  
Dynamic Bandwidth ◽  
Bandwidth Allocation Algorithm

In order to address the challenges that have come with the exploding demand for higher speed, traffic growth and mobile wireless devices, Mobile network operators have decided to move to the notion of small cells based on cloud radio access network. The merits of cloud based RAN includes the ease of infrastructure deployment and network management as well as the fact that its performance are optimized and it is cost effective the merits of cloud based RAN includes the ease of infrastructure deployment and network management as well as the fact that its performance are optimized and it is cost effective. Notwithstanding, cloud radio access network comes with so many strict requirements to be fulfilled for its fronthaul network. In this paper, we have presented these requirements for a 5G fronthaul network. Particular interest on the time division multiplex passive optical network’s challenge of latency was treated by proposing an optimized version of the round robin dynamic bandwidth allocation algorithm. Results obtained show an improvement in the latency of the original algorithm which meets the fronthaul requirement. Other test parameters like jitter and BER were also improved by our proposed optimized algorithm.

Research on Converged Access Network of WDM-PON and WiMAX

2011 ◽  
Vol 58-60 ◽  
pp. 1583-1589 ◽  
Author(s):  
Yi Hong Hu ◽  
Guo Chu Shou ◽  
Zong Jue Qian ◽  
Hao Xing Shen
Keyword(s):  
Network Model ◽  
Bandwidth Allocation ◽  
Low Cost ◽  
Access Network ◽  
Dynamic Bandwidth Allocation ◽  
Allocation Algorithm ◽  
Converged Network ◽  
Dynamic Bandwidth ◽  
Bandwidth Allocation Algorithm ◽  
Wdm Pon

Fixed Mobile Convergence (FMC) provides a solution of the converged access network for wired and wireless network. PON and WiMAX are the typical representatives in fiber access network and broadband wireless access network, of which the convergence has great research value. The converged network of PON and WiMAX has the advantage of high-bandwidth, which can provide various kinds of broadband access services and has features of low cost and simple and flexible. There are a variety of system forms for PON technology, one of them with unique advantages is WDM-PON system. In WDM-PON systems, each service has exclusive transmission bandwidth, which makes the converged network of WDM-PON and WiMAX has much more advantages than any other PON network. This paper proposes a converged network model of WDM-PON and WiMAX, and focuses on the analysis of dynamic bandwidth allocation algorithm applicable to the converged network model; then does some simulation of this dynamic bandwidth allocation algorithm, proves that the algorithm has a good delay effect in overload conditions, and analyses the bandwidth rate taken by traffic flow of different service levels under different network load situations.

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