A QoS-aware Graded Erosion Queuing Model in Smart Grid

Abstract

The Smart Grid (SG), which incorporates two-way communications and offers intelligent control and convenient interaction is in the booming developments. The implement of the Power Fiber to the Home (PFTTH) technology and systems makes the optical fiber core network in smart grid outstanding in both delay and reliability. However, the Quality-of-Service (QoS) of the peripheral networks becomes a major bottleneck in network performances. This paper takes the heterogeneous characteristics of the SG traffic into consideration and proposes a prioritization mechanism for the communication networks in SG, named as Graded Erosion Queuing Model (GEQM). The GEQM can ensures that the high-priority data can be serviced first, while the medium priority data would not be interfered too much. And the simulation analysis shows that the performance of high priority messages can get a reliable guarantee, and most of the lower priority levels of messages can get an acceptable performance.