A novel method for analysing the performance of power saving class of Type III in IEEE 802.16e is proposed, which is applicable to design, maintenance and management for mobile wireless metropolitan area network. Cons...A novel method for analysing the performance of power saving class of Type III in IEEE 802.16e is proposed, which is applicable to design, maintenance and management for mobile wireless metropolitan area network. Considering the memoryless nature of user initiated packet arrival, a Geom/G/1 queue model with multiple vacations and setup period is built to capture the principle for the power saving class of Type III. By using an embedded Markov chain method and the boundary state variable theory, we obtain the queueing measures such as queueing length, waiting time and busy cycle in steady state. Correspondingly, we derive explicitly the performance measures for the power saving class of Type III in terms of handover ratio, energy saving ratio, and average packet response time. Based on numerical results, we develop a cost function to determine numerically the optimal length of sleep window and the minimal cost with different offered loads.展开更多
文章深入研究物联网中的窄带物联网(Narrow Band Internet of Things,NB-IoT)技术,重点探讨基于省电模式(Power Saving Mode,PSM)机制的优化方法,分析NB-IoT的数学原理,研究一种基于PSM机制的动态调整算法,并利用MATLAB平台上的Simulin...文章深入研究物联网中的窄带物联网(Narrow Band Internet of Things,NB-IoT)技术,重点探讨基于省电模式(Power Saving Mode,PSM)机制的优化方法,分析NB-IoT的数学原理,研究一种基于PSM机制的动态调整算法,并利用MATLAB平台上的Simulink工具进行仿真实验。实验结果显示,相比传统方法,文章方法能显著降低平均功耗,在实际应用中具有有效性和稳定性。展开更多
基金Supported by the National Natural Science Foundation of China (No.10671170,60773100)the Natural Science Foundation of Hebei Province,China (No.2009000475)
文摘A novel method for analysing the performance of power saving class of Type III in IEEE 802.16e is proposed, which is applicable to design, maintenance and management for mobile wireless metropolitan area network. Considering the memoryless nature of user initiated packet arrival, a Geom/G/1 queue model with multiple vacations and setup period is built to capture the principle for the power saving class of Type III. By using an embedded Markov chain method and the boundary state variable theory, we obtain the queueing measures such as queueing length, waiting time and busy cycle in steady state. Correspondingly, we derive explicitly the performance measures for the power saving class of Type III in terms of handover ratio, energy saving ratio, and average packet response time. Based on numerical results, we develop a cost function to determine numerically the optimal length of sleep window and the minimal cost with different offered loads.
文摘文章深入研究物联网中的窄带物联网(Narrow Band Internet of Things,NB-IoT)技术,重点探讨基于省电模式(Power Saving Mode,PSM)机制的优化方法,分析NB-IoT的数学原理,研究一种基于PSM机制的动态调整算法,并利用MATLAB平台上的Simulink工具进行仿真实验。实验结果显示,相比传统方法,文章方法能显著降低平均功耗,在实际应用中具有有效性和稳定性。
