Paper Info
Title
QoS Differential Scheduling in Cognitive-Radio-Based Smart Grid Networks: An Adaptive Dynamic Programming Approach.
Abstract
As the next-generation power grid, smart grid will be integrated with a variety of novel communication technologies to support the explosive data traffic and the diverse requirements of quality of service (QoS). Cognitive radio (CR), which has the favorable ability to improve the spectrum utilization, provides an efficient and reliable solution for smart grid communications networks. In this paper, we study the QoS differential scheduling problem in the CR-based smart grid communications networks. The scheduler is responsible for managing the spectrum resources and arranging the data transmissions of smart grid users (SGUs). To guarantee the differential QoS, the SGUs are assigned to have different priorities according to their roles and their current situations in the smart grid. Based on the QoS-aware priority policy, the scheduler adjusts the channels allocation to minimize the transmission delay of SGUs. The entire transmission scheduling problem is formulated as a semi-Markov decision process and solved by the methodology of adaptive dynamic programming. A heuristic dynamic programming (HDP) architecture is established for the scheduling problem. By the online network training, the HDP can learn from the activities of primary users and SGUs, and adjust the scheduling decision to achieve the purpose of transmission delay minimization. Simulation results illustrate that the proposed priority policy ensures the low transmission delay of high priority SGUs. In addition, the emergency data transmission delay is also reduced to a significantly low level, guaranteeing the differential QoS in smart grid.
Year
DOI
Venue
2016
10.1109/TNNLS.2015.2411673
IEEE transactions on neural networks and learning systems
Keywords
Field
DocType
smart grid communications network,transmission scheduling.,cognitive radio (cr),adaptive dynamic programming (adp),quality of service (qos),communication networks,smart grids,quality of service,scheduling,dynamic programming
Telecommunications network,Job shop scheduling,Smart grid,Data transmission,Scheduling (computing),Computer science,Transmission delay,Computer network,Quality of service,Distributed computing,Cognitive radio
Journal
Volume
Issue
ISSN
PP
99
2162-2388
Citations 
PageRank 
References 
19
0.68
19
Authors
5
Name
Order
Citations
PageRank
Rong Yu1144186.78
Weifeng Zhong29910.88
Shengli Xie32530161.51
Yan Zhang45818354.13
Yun Zhang557630.23