A Packet Buffer Evaluation Method Exploiting Queueing Theory for Wireless Sensor Networks

Computer Science and Information Systems

Lin Feng¹  Tie Qiu² 

[1] School of Innovation Experiment, Dalian University of Technology;School of Software, Dalian University of Technology

关键词: wireless sensor networks;    queueing network model;    blocking;    packet buffer capacity;    node utilization;   

DOI  :  10.2298/CSIS110227057Q

学科分类：社会科学、人文和艺术（综合）

来源: Computer Science and Information Systems

【 摘 要 】

In large-scale wireless sensor networks (WSNs), when the consumption of hardware is limited, how to maximize the performance has become the research focus for improving transmission quality of service (QoS) of WSNs in recent years. This paper presents a new evaluation method for packet buffer capacity of nodes using queueing network model, whose packet buffer capacity is analyzed for each type node, when it is in the best working condition. In order to evaluate congestion situation in the queueing network, and to get real effective arrival rates and transmission rates in the model, holding nodes were added in the queueing network model, and equivalent queueing network model is expanded. We establish an M/M/1/N type queueing network model with holding nodes for WSNs and design approximate iterative algorithms. Experimental results show that the model is consistent with the real data.

【 授权许可】

CC BY-NC-ND