Transmission Control Protocol Global Synchronization Problem in Wide Area Monitoring and Control Systems
Keywords:Global Synchronization, Phasor Measurement Units, Power Network, Transmission Control Protocol, Wide Area Monitoring and Control Systems
The electrical power network is a significant element of the critical infrastructure in modern society. Nowadays, wide area monitoring and control systems (WAMC) are becoming increasingly an important topic that motivates several researchers to improve, develop, and find the problems that hinder progress toward WAMC systems. WAMC is used to monitor and control the power network so the power network can be adapt to failures in automatic way. In this work, verification of the extent found a problem in transmission control protocol (TCP) which is called global synchronization and its impact on utilizing the buffer of the routers. A simulation models had been belt of WAMC system using OMNeT++ to study the performance of TCP in two queuing algorithms for measuring transmission of phasor measurement units and to test if global synchronization problem occurs. Three scenarios were used to test the survival of this problem on the system. It is found that the problem of global synchronization occurred in two scenarios which in turn causes low utilization for a buffer of routers.
Index Terms: Global Synchronization, Phasor Measurement Units, Power Network, Transmission Control Protocol, Wide Area Monitoring and Control Systems
 H. Erich, H. Khurana and T. Yardley. “Exploring convergence for SCADA networks.” Innovative Smart Grid Technologies (ISGT), IEEE PES, IEEE, 2011.
 C. Moustafa, K. Zhu and L. Nordstrom. Survey on Priorities and Communication Requirements for PMU-Based Applications in the Nordic Region. PowerTech, 2009.
 C. Moustafa, A. Layd and L. Jordan. “PMU traffic shaping in IP- based wide area communication.” Critical Infrastructure (CRIS), 2010 5th International Conference on IEEE, 2010.
 Y. Yorozu, M. Hirano, K. Oka and Y. Tagawa. “Electron spectroscopy studies on magneto-optical media and plastic substrate interface,”
IEEE Translation Journal on Magnetics in Japan, vol. 2, pp. 740-741, Aug. 1987. (Digests 9thAnnual Conf. Magnetics Japan, p. 301, 1982).
 Z. Lixia and C. David. “Oscillating behavior of network traffic: Acase study simulation”. Internetworking: Research and Experience, vol. 1, pp. 101-112, 1990.
 S. Chakchai. “Loss synchronization of TCP connections at a shared bottleneck link.” Department of Computer Science and Engineering, St. Louis: Washington University, 2006.
 H. Sofiane and R. David “loss synchronization, router buffer sizing and high-speed TCP versions: Adding RED to the mix”. IEEE 34th Conference on Local Computer Networks, 2009.