Proportional Fair and QoS-aware Hierarchical Dynamic Bandwidth Allocation Scheme for Fiber-wireless Networks

HE Rong; XIE Hui; FANG Xuming

doi:10.11999/JEIT160731

Volume 39 Issue 6

Jun. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(6): 1409-1416

HE Rong, XIE Hui, FANG Xuming. Proportional Fair and QoS-aware Hierarchical Dynamic Bandwidth Allocation Scheme for Fiber-wireless Networks[J]. Journal of Electronics & Information Technology, 2017, 39(6): 1409-1416. doi: 10.11999/JEIT160731

Citation:

HE Rong, XIE Hui, FANG Xuming. Proportional Fair and QoS-aware Hierarchical Dynamic Bandwidth Allocation Scheme for Fiber-wireless Networks[J]. Journal of Electronics & Information Technology, 2017, 39(6): 1409-1416. doi: 10.11999/JEIT160731

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Proportional Fair and QoS-aware Hierarchical Dynamic Bandwidth Allocation Scheme for Fiber-wireless Networks

doi: 10.11999/JEIT160731

Funds:

The National Natural Science Foundation of China (61471303), China Scholarship Council (20130700501)

Received Date: 2016-07-08
Rev Recd Date: 2017-03-17
Publish Date: 2017-06-19

Abstract

Abstract

The integration of optical and wireless technologies, denoted as Fiber-Wireless (FiWi) networks, can provide not only high capacity but also flexible wireless access ability with less infrastructure deployment. Since data traffic generated in FiWi networks usually experiences unstable and unpredictable, it is difficult to perform traffic prediction in advance. An effective and fair Dynamic Bandwidth Allocation (DBA) scheme plays an important role. This paper proposes an upstream fair hierarchical DBA scheme for EPON-WLAN networks. Excess bandwidth proportion factor is introduced to address the unfair issue due to the unmatched problem between the allocated bandwidth resource and the assigned user weight among multiple granting cycles. On the other hand, in order to deal with the QoS guarantee and bandwidth waste issue in bandwidth allocation, we jointly taken into account of different traffic QoS priorities, bandwidth requirement proportion, and actual traffic load. Extensive simulation results show that compared with the existing DBA schemes, the proposed hierarchical DBA scheme can improve proportional fairness, throughput and channel utilization. Moreover, the proposed FiWi DBA scheme does not refer to a specific bandwidth resource types, thus obtains good generality.
- Fiber-Wireless (FiWi) network,
- Ethernet Passive Optical Network (EPON),
- WLAN,
- Dynamic Bandwidth Allocation (DBA),
- Proportional fairness,
- QoS-aware

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References(16)

References

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