A Fuzzy Based Approach for Rate Control in Wireless Multimedia Sensor Networks | ||
| AUT Journal of Modeling and Simulation | ||
| مقاله 2، دوره 44، شماره 1، 2012، صفحه 7-20 اصل مقاله (905.05 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/miscj.2012.21 | ||
| نویسندگان | ||
| Mohammad Hossein Yaghmaee Moghaddam* 1؛ Hamid Reza Hassanzadeh2 | ||
| 1Corresponding Author, M.H. Yaghmaee Moghaddam is with the Department of Computer Engineering and Center of Excellence on Soft Computing and Intelligent Information Processing, Ferdowsi University of Mashhad, Mashhad, Iran (e-mail: yaghmaee@ieee.org). | ||
| 2Hamid Reza Hassanzadeh is a graduate student in Department of Computer Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran (e-mail:ha.hassanzadeh@ieee.org) | ||
| چکیده | ||
| Wireless Multimedia Sensor Networks (WMSNs) undergo congestion when a link (or a node) becomes overpopulated in terms of incoming packets. In WMSNs this happens especially in upstream nodes where all incoming packets meet and directed to the sink node. Congestion in networks, if not handled properly, might lead to congestion collapse which deteriorates the quality of service (QoS). Therefore, in order to avoid such situations corresponding actions should be taken into account so that to yield lower packet loss and consequently energy loss that is of utmost importance in WSNs. However, the term "packet loss" as implied by today's literature might not be effective in many applications especially in multimedia sensor networks. In this paper a new weighted packet loss metric is proposed which is best suited for multimedia sensor networks that convey packets of different priority classes. The proposed method then tries to minimize the aforementioned criterion by means of fuzzy queue management and a newly introduced adaptive rate control mechanism, in the presence of both abrupt and gradual changes in network dynamics. The employment of these two techniques provides us a synergy to handling short term and long term variations arising through the underlying simulated networks. The simulation results approve the superiority of the proposed approach over the selected competitive method when dealing with packets of different priorities. | ||
| کلیدواژهها | ||
| Adaptive rate control؛ Multimedia sensor networks؛ Fuzzy queue management | ||
| مراجع | ||
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