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modeling and performance evaluation of the sleep mode in the IEEE 802.16e wireless networks with self-similar traffic

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The Journal of China Universities of Posts and Telecommunications 2009年第4期16卷 34-41页

作者： HUO Zhan-qiang JIN Shun-fu TIAN Nai-shuo WANG Yan College of Information Science and Engineering Yanshan University Qinhuangdao 066004 China College of Science Yanshan University Qinhuangdao 066004 China School of Computer Science and Engineering Hebei University of Technology Tianjin 300401 China

IEEE 802.16e is currently the latest broadband wireless access standard designed to support mobility. In mobile networks, how to control energy consumption is one of the most important issues for battery-powered mobile stations. The standard proposes an energy saving mechanism named ＇sleep mode＇ for conserving the power of mobile stations. According to the operation principle of the sleep mode for downlink traffic in the type I power saving class, considering the self-similar nature of massive multimedia data in wireless networks, a discrete-time batch arrival Geom^x/G/1 queuing model with a close-down time and multiple vacations is built. The batch size is supposed to be Pareto distributed. By employing an embedded Markov chain method, the average queue length and the average sojourn time of the system model are derived. Correspondingly, the performance measures are obtained of the energy saving rate and the average packet delay time for the sleep mode in the IEEE 802.16e. The numerical results demonstrate the dependency relationships between the system performance measures and the system parameters with different offered loads and different self-similar degrees. Furthermore, a cost model is developed to determine the optimum length of the close-down time for minimizing the total system cost.

关键词： IEEE 802.16e sleep mode close-down self-similar energy saving rate

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Base Station Energy Management in 5G Networks Using Wide Range Control Optimization

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Intelligent Automation & Soft Computing 2023年第1期35卷 811-826页

作者： J.Premalatha A.SahayaAnselin Nisha Department of Electronics and Communication Engineering Sathyabama Institue of Science and TechnologyChennai600119India

The traffic activity offifth generation(5G)networks demand for new energy management techniques that is dynamic deep and longer duration of sleep as compared to the fourth generation(4G)network technologies that demand always for varied control and data signalling based on control base station(CBS)and data base station(DBS).Hence,this paper discusses the energy management in wireless cellular networks using wide range of control for twice the reduction in energy conservation in non-standalone deployment of 5G network.As the new radio(NR)based 5G network is configured to transmit signal blocks for every 20 ms,the proposed algorithm implements withstanding capacity of on or off based energy switching,which in-turn operates in wide range control by carrying out reduced computational complexity.The proposed Wide range of control for base station in green cellular network using sleep mode for switch(WGCNS)algorithm toon and off the base station will work in heavy load with neighbouring base station.For reducing the overhead duration in air,heuristic versions of the algorithm are proposed at the base station.The algorithm operates based on the specification with suggested protocol-level to give best amount of energy savings.The proposed algorithm reduces 40%to 83%of residual energy based on the traffic pattern of the urban scenario.

关键词： 5G base station energy management energy saving traffic pattern sleep mode

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PERFORMANCE ANALYSIS OF POWER SAVING CLASS OF TYPE Ⅲ IN IEEE 802.16E WITH USER INITIATED TRAFFIC

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Journal of Electronics(China) 2010年第1期27卷 127-133页

作者： Gao Jie Jin Shunfu Tian Naishuo Han Li College of Information Science and Engineering Yanshan University Qinhuangdao 056004 China

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.

关键词： IEEE 802.16e Power saving class of Type Ⅲ sleep mode Multiple vacations Queueing system

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Load Sensitive Power Saving Technique for 4G Mobile Network under Limited User Traffic

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Communications and Network 2016年第2期8卷 79-87页

作者： Mohammad Asif Hossain Mohammad Imdadul Islam Mohamed Ruhul Amin Department of Electronics and Communications Engineering East West University Dhaka Bangladesh Department of Computer Science and Engineering Jahangirnagar University Savar Bangladesh

Power saving is one of the key factors of emerging 4G mobile network as well as in IEEE 802.16e wireless metropolitan area networks (Wireless MAN). An efficient power saving mechanism is the heart for the guarantee of a long operating lifetime for a mobile subscriber station (MS), because MSs are normally driven by rechargeable batteries. It is a vital factor for Base Station (BS) of the same network. One of the most important features of 5G mobile is the extension of battery energy 10 times greater than the present days. In this context, the evaluation of duration of sleep mode of BS or MS based on traffic load of a network is now a new era of research work. In this paper, such analysis has been done based on two statistical models: Poisson’s pdf and Engset pdf. The concept of complete sharing and partitioning of user group of teletraffic engineering is applied to measure the possibility of getting leisure time of BS or MS. Both the traffic models used in the paper are applicable in both limited and unlimited user network, i.e. in micro and fem to cellular network of 4G and 5G.

关键词： Markovian Chain sleep mode Packet Arrival Rate Schedulability and Probability of Data Accumulation

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