Dynamic bandwidth allocation algorithm for QoS-aware per-queue EPON with overhead control | |
| Author | Choudhury, Pallab Kumar |
| Call Number | AIT Thesis no.ICT-07-07 |
| Subject(s) | Ethernet (Local area network system) Passive optical networks |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Information & Communications Technologies, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ICT-07-07 |
| Abstract | Ethernet Passive Optical Network (EPON) can be considered as strong candidate for the next generation access network as they combine low-cost Ethernet equipment and passive optical components. EPON is capable of delivering integrated voice, data, and video services with their diverse requirements to the subscribers. Hence, bandwidth management of the upstream channel is a crucial issue for successful implementation of Quality-of-Service (QoS) aware EPONs. In this thesis, we propose an Optical Line Terminal (OLT) centric Dynamic Bandwidth Allocation (DBA) scheme based on individual requests from service queues in Optical Network Units (ONUs) for a QoS aware EPON. The goal is to provide fairness for allocating bandwidth among different service classes based on their Service Level Agreements (SLAs). The proposed DBA scheme makes use of the excess bandwidth of lightly loaded queues to meet the bandwidth demand of heavily loaded queues. To implement this scheme, an effective polling mechanism is incorporated to solve the idle period problem. In addition, to reduce the scheduling overhead, the DBA scheme utilizes a novel different cycle policy which involves selective bandwidth allocations to different service classes based on their delay bounds. We conduct detailed simulation experiments and compare the results with the iwell-known Interleaved Polling with Adaptive Cycle Time (IPACT) algorithm |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ICT-07-07 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Information and Communication Technology (ICT) |
| Chairperson(s) | Poompat Saengudomlert; |
| Examination Committee(s) | Erke, Tapio J;Teerapat Sanguankotchakorn; |
| Scholarship Donor(s) | FINLAND;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |