Title :
Analysis of real-time communication system with queuing priority
Author :
Wu, Yunbo ; Li, Zhishu ; Chen, Zhihua ; Wu, Yunhai ; Wang, Li ; Lu, Tun
Author_Institution :
Sch. of Comput. Sci., Sichuang Univ., Chengdu, China
Abstract :
In this paper, we discuss the real-time issue related to QoS requirements in a communication system, which consists of several sensors and one central control unit. In order to guarantee real-time requirement and fairness among sensors, a polling mechanism with queuing priority is applied in it. By means of the imbedded Markov chain theory and generating function method, mean queue length and mean circle time of asymmetric system are studied quantitatively, and corresponding exact expressions are obtained. These results are critical for system device and system performance analysis. Finally, computer simulations demonstrate effectiveness of this analysis.
Keywords :
Markov processes; quality of service; queueing theory; QoS requirements; asymmetric system; central control unit; generating function method; imbedded Markov chain theory; mean circle time; mean queue length; polling mechanism; queuing priority; real-time communication system; sensors; Centralized control; Communication system control; Communication systems; Computer simulation; Control systems; Performance analysis; Queueing analysis; Real time systems; Sensor systems; System performance;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9335-X
DOI :
10.1109/WCNM.2005.1544187
