Power Saving Class I Sleep Mode in IEEE802.16e System
07 May 2007-Vol. 3, pp 1487-1491
TL;DR: Simulation results show that the effect of power saving class I sleep mode varies depending on different parameter configurations, and the energy consumption under the consideration of sleep interval of variable power rather than a constant power, and two-type-returning from sleep mode.
Abstract: This paper investigates energy saving of MS (mobile subscriber) at power saving class I sleep mode in IEEE 802.16e system. In order to minimize the MS power consumption and decrease the occupation of interface resources in serving BS (base station), the sleep mode mechanism is introduced. This paper models the energy consumption of power saving class I sleep mode under the consideration of sleep interval of variable power rather than a constant power, and two-type-returning from sleep mode. Simulation results show that the effect of power saving class I sleep mode varies depending on different parameter configurations.
Citations
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TL;DR: The optimal sleep-mode operation for an efficient power saving mechanism for delay-guaranteed services in the IEEE 802.16e WMAN is obtained which minimizes the power consumption per unit time per effective arrival with a given delay requirement.
Abstract: As the IEEE 802.16e Wireless Metropolitan Access Network (WMAN) supports the mobility of a mobile station (MS), increasing MS power efficiency has become an important issue. In this paper, we analyze the sleep-mode operation for an efficient power saving mechanism for delay-guaranteed services in the IEEE 802.16e WMAN and observe the effects of the operating parameters related to this operation. For the analysis we use the M/GI/1/K queueing system with multiple vacations, exhaustive services and setup times. In the analysis, we consider the power consumption during the wake-mode period as well as the sleep-mode period. As a performance measure for the power consumption, we propose the power consumption per unit time per effective arrival which considers the power consumption and the packet blocking probability simultaneously. In addition, since we consider delay-guaranteed services, the average packet response delay is also considered as a performance measure. Based on the performance measures, we obtain the optimal sleep-mode operation which minimizes the power consumption per unit time per effective arrival with a given delay requirement. Numerical studies are also provided to investigate the system performance and to show how to achieve our objective.
16 citations
Cites background from "Power Saving Class I Sleep Mode in ..."
...Numerical studies are also provided to investigate the system performance and to show how to achieve our objective. key words: sleep-mode operation, power saving, IEEE 802.16e, power consumption, average packet response delay...
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TL;DR: This paper proposes a novel routing protocol integrated power balance scheme that employs position information and a power-saving scheme to balance the energy of each node and to lengthen the entire network’s life.
Abstract: In recent years, many studies have proposed various ways to strengthen wireless networks' performance. In this paper, we identify some drawbacks arising from protocol improved location-aided routing (ILAR). Nodes around the borders of a given broadcast coverage might quickly and easily move out, resulting in a broken routing path. Another problem in ILAR is that, although it may have a better forwarding node available for use a relay node could fail. Therefore we propose a novel routing protocol integrated power balance scheme to help resolve the problems mentioned above. Furthermore, the scheme employs position information and a power-saving scheme to balance the energy of each node and to lengthen the entire network's life. To achieve these goals, there must be a reduction in the simultaneous loading of networks. Therefore, we also propose a cluster-based routing mechanism in mobile ad hoc networks. This mechanism can reduce the loading of networks, energy conservation, and increase the lifetime of nodes and networks.
12 citations
Cites background from "Power Saving Class I Sleep Mode in ..."
...In [15], the authors proposed an energy-saving feature for a mobile subscriber: this feature was the sleep mode of the power-saving class I in the IEEE 802....
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TL;DR: The time-dependent performance measures of the system and the probability density function of the first-passage-time to reach the maintenance state are discussed and the corresponding steady state analysis and key performance measures are presented.
Abstract: A single server queue subject to maintenance of the server and the close down period is considered. We obtain explicit expressions for the transient probabilities of the system size, the server under maintenance state and the close down period. The time-dependent performance measures of the system and the probability density function of the first-passage-time to reach the maintenance state are discussed. The corresponding steady state analysis and key performance measures of the system are also presented. Finally, the effect of various parameters on system performance measures is demonstrated by a numerical example.
11 citations
Journal Article•
TL;DR: This paper introduced the standardized sleep mode in IEEE802.16e, analyzed the average energy consumption and the average packet delay under sleep mode by building a semi-Markov chain, and gave the simulation results by NS2 at last.
Abstract: The IEEE80216e is a standard of emerging broadband wireless access system which supports the mobilityThe mobile subscribers(MSS) are mainly powered by the batteries,so the sleep mode mechanism becomes an important component for the MSS which can effectively manage the limited energy,and prolong the using time of the once-charged batteriesThis paper introduced the standardized sleep mode in IEEE80216e,then it analyzed the average energy consumption and the average packet delay under sleep mode by building a semi-Markov chain,and gave the simulation results by NS2 at last
8 citations
20 Dec 2008
TL;DR: This paper shows the performance evaluation of power management of IEEE 802.16e system, and a linear increase algorithm is proposed for an analytical mode for full understanding of performance factors.
Abstract: In IEEE 802.16e system, mobile station (MS) is usually powered by battery. To save the limited power, IEEE 802.16e standard specifies sleep mode operation for power management.There are two significant performance factors in sleep mode operation, one is energy consumption, and the other is response delay. When MS wakes up by outgoing data frame from itself, only energy consumption is considered because of on response delay. And when MS wakes up by incoming data frame from base station (BS), both two factors should be considered. To get a full understanding of performance factors, a linear increase algorithm is proposed for an analytical mode. Then this paper shows the performance evaluation of power management.
3 citations
References
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TL;DR: Energy consumption for the IEEE 802.16e broadband wireless access (BWA) network is studied and the sleep-mode scheme is analytically model and validated with simulations.
Abstract: In this paper, we study energy consumption for the IEEE 802.16e broadband wireless access (BWA) network, A mobile subscriber station goes to sleep-mode after negations with the base station and temporarily wake-up periodically for a short interval to check whether there is downlink traffic to it to decide whether it goes to wake-mode or continues to be in the sleep-mode. The sleep interval is increased exponentially upon no arrival traffic. We analytically model the sleep-mode scheme and validate the model with simulations.
292 citations
"Power Saving Class I Sleep Mode in ..." refers background in this paper
...[5] proposed a novel model to investigate the energy consumption in IEEE802....
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...Both [5] and [6] assumed the power of MS in the sleep interval as a constant, but in fact, MS may be designed to gradually power down one or more physical operation components....
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TL;DR: The comparison between the result and the simulation shows that the analytical model is accurate in evaluating the energy consumption and hence provides a potential guidance in efficiently managing energy.
Abstract: Energy management is an important component for the emerging standard IEEE 802.16e supporting mobility. In this paper, we characterize the standardized sleep mode in IEEE 802.16e. The comparison between our result and the simulation shows that our analytical model is accurate in evaluating the energy consumption and hence provides a potential guidance in efficiently managing energy.
156 citations
"Power Saving Class I Sleep Mode in ..." refers background in this paper
...[6] analyzed the energy consumption by considering both the incoming frames and outgoing frames since the instants of terminating sleep mode by incoming or outgoing traffics are different....
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...Both [5] and [6] assumed the power of MS in the sleep interval as a constant, but in fact, MS may be designed to gradually power down one or more physical operation components....
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26 Sep 2004
TL;DR: The paper investigates the queueing behavior of the sleep mode operation in IEEE 802.16e for conserving the power of an mobile station (MS) in terms of the dropping probability and the mean waiting times of packets in the base station (BS) queue.
Abstract: The paper investigates the queueing behavior of the sleep mode operation in IEEE 802.16e for conserving the power of an mobile station (MS) in terms of the dropping probability and the mean waiting times of packets in the base station (BS) queue. In the sleep mode, when an MS wakes up at the end of each sleep interval and there is traffic addressed to it, this is notified in the listening interval immediately following the sleep interval. Otherwise, an MS again enters the sleep mode with a sleep interval which is double the length of the previous one. We modeled this sleep mode operation as M/GI/1/N with multiple vacations whose periods depend on the previous one. Our work may be a rough guide to understanding the BS queueing behavior according to parameters such as the minimum and maximum sleep interval, the BS queue size and the arrival rate of packets at a BS.
112 citations
"Power Saving Class I Sleep Mode in ..." refers background in this paper
...LetT7denote thelength ofthejthsleep interval as( 4 )....
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...Therestofthepaperisorganized asfollows. Section 2 analyzes thesystem modelofPowerSaving Class Isleep mode.Andtheperformance ofPowerSaving Class Iis evaluated inSection 3.Finally, theconclusion isprovided in Section 4 ....
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...Figure 4 .Performance analysis withdifferent Tsleepma....
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...A. Tsleepmax Effects Figure 4 .showsthemeanenergyconsumption and...
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...Asforsleep modemechanism, [3]and[ 4 ]investigated the protocol andcontrol mechanism....
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17 Oct 2005
TL;DR: Protocols and control mechanisms are proposed to put mobile terminals to "sleep" (to save energy) when they are idle, and "wake them up" when there is traffic destined for them, based on the existing 802.16-2004 standard.
Abstract: The IEEE 802.16-2004 standard (formerly 802.16d) has been approved to provide last-mile connectivity to fixed locations by radio links. Although the IEEE committee is working on a future 802.16e standard to support terminal mobility, we believe that adding mobility support to the present standard will offer a significant business opportunity for service providers by enabling them to serve a large pool of potential users whose laptops and PDAs are 802.16-2004 enabled. In our prior work, we have shown how to reuse commands from the 802.16-2004 standard to support handoff between access points without any change to the standard. However, given that the mobile terminals will be severely constrained by battery life, it is essential that new protocols and control mechanisms be devised to save terminal energy, based on the existing 802.16-2004 standard. To achieve this objective, in the present paper we propose protocols and use existing 802.16-2004 commands to put mobile terminals to "sleep" (to save energy) when they are idle, and "wake them up" when there is traffic destined for them. We also demonstrate how this "sleep/wakeup" cycle can is compatible with the handoff process.
16 citations
"Power Saving Class I Sleep Mode in ..." refers methods in this paper
...As for sleep mode mechanism, [3] and [4] investigated the protocol and control mechanism....
[...]
Journal Article•
TL;DR: This paper introduced the standardized sleep mode in IEEE802.16e, analyzed the average energy consumption and the average packet delay under sleep mode by building a semi-Markov chain, and gave the simulation results by NS2 at last.
Abstract: The IEEE80216e is a standard of emerging broadband wireless access system which supports the mobilityThe mobile subscribers(MSS) are mainly powered by the batteries,so the sleep mode mechanism becomes an important component for the MSS which can effectively manage the limited energy,and prolong the using time of the once-charged batteriesThis paper introduced the standardized sleep mode in IEEE80216e,then it analyzed the average energy consumption and the average packet delay under sleep mode by building a semi-Markov chain,and gave the simulation results by NS2 at last
8 citations
"Power Saving Class I Sleep Mode in ..." refers methods in this paper
...As for sleep mode mechanism, [3] and [4] investigated the protocol and control mechanism....
[...]