QoS-TEOS：QoS Guaranteed Throughput-Efficiency Optimal Distributed Scheduling in WiMAX Mesh Networks

• Published in: Journal of computer science and technology Vol. 25; no. 5; pp. 970 - 981
• Main Author: 滕达 杨寿保 赫卫卿 胡云
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.09.2010; Springer Nature B.V
• Subjects: Algorithms; Artificial Intelligence; Computer Science; Computer simulation; Data Structures and Information Theory; Data transmission; Efficiency; Finite element method; Guarantees; Information Systems Applications (incl.Internet); Mesh网络; Networks; Optimization; Priorities; QoS保证; Quality of service; Quality of service architectures; Regular Paper; Scheduling; Simulation; Software Engineering; Strategy; Subframes; Theory of Computation; User satisfaction; WiMAX; Wireless communications; Wireless networks; 分布式调度; 吞吐量效率; 效率优化; 服务质量保证; 正硅酸乙酯; distributed scheduling; throughput; network efficiency; quality of service (QoS); data subframe scheduling; WiMAX mesh networks
• ISSN: 1000-9000; 1860-4749
• DOI: 10.1007/s11390-010-9381-6

WiMAX distributed scheduling can be modeled as two procedures：three-way handshaking procedure and data subframe scheduling procedure.Due to manipulating data transmission directly,data subframe scheduling has a closer relationship with user Quality of Service（QoS） satisfaction,and has more severe impact on network performance,compared with handshaking procedure.A QoS guaranteed Throughput-Efficiency Optimal distributed data subframe Scheduling scheme,named as QoS-TEOS,is proposed.QoS-TEOS achieves QoS guarantee through modeling services into different ranks and assigning them with corresponding priorities.A service with higher priority is scheduled ahead of that with lower priority and offered with high QoS quality.Same kinds of services that request similar QoS quality are classified into one service set.Different service sets are scheduled with different strategies.QoS-TEOS promotes network performance through improving network throughput and efficiency.Theoretical analysis shows that the scheduled data transmission should balance data generation rate from upper layer and transmission rate of physical layer,to avoid network throughput and efficiency declining.Simulation results show that QoS-TEOS works excellently to achieve throughput-efficiency optimization and guarantee a high QoS.