Sleep-based Energy-efficient DBA in an EPON using the Controlling Mechanism for an ONU’s Buffer Occupancy and Packet Delay

Хэвлэлийн нэр: Journal of Optical Communications and Networking

Зохиогч:  Ш.Ганболд

Хамтран зохиогч:

Хэвлүүлсэн огноо: 2015-10-01

Хуудас дугаар: 7 (10), pp. 1001-1008

Өгүүллийн хураангуй: We propose an energy-efficient dynamic bandwidth allocation (EE-DBA) in an Ethernet passive optical network (EPON). In the proposed EE-DBA, the eligibility of optical network units (ONUs) to enter a power-saving mode is investigated based on their buffer occupancy and packet delay conditions that satisfy the user’s quality of service (QoS) requirement. These conditions are easily obtained through the multi-point control protocol (MPCP) that is exchanged between the optical line terminal (OLT) and the ONUs. The performance of the proposed EE-DBA is evaluated through simulations, and the results show that the power consumption of ONUs could be reduced by about 53% without sacrificing the user’s QoS requirement under light and moderate traffic loads.
We proposed an EE-DBA in an EPON that can save energy by entering the ONUs into power-saving mode. In the proposed method, we used two predefined sleep times rather than one, which enabled us to utilize both smaller and larger sleep times and thus further enhance power-saving efficiency. For the given sleep time, the proposed algorithm investigates the ONU’s buffer occupancy and packet delay using information such as the request message, allocated bandwidth, and start time of each ONU’s transmission in the previously elapsed scheduling cycles in the OLT. If the condition is satisfied, then the ONUs can enter power-saving mode.

Өгүүллийн төрөл: IEEE индекстэй сэтгүүл

Өгүүллийн зэрэглэл: Гадаад

Түлхүүр үг: #Buffer occupancy and packet delay #Energy-efficient dynamic bandwidth allocation #Doze sleep mode. #Ethernet passive optical network

Өгүүлэл нэмсэн: Ш.Ганболд

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