Numerical Analysis of the Power Saving in 3GPP LTE Advanced Wireless Networks

Jin, Sunggeun; Qiao, Daji

doi:10.1109/tvt.2012.2187690

Cited by 79 publications

(38 citation statements)

References 22 publications

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“…In [35], the authors present the semi-Markov chain model to analysis the impact of DRX mechanism in LTE network with Machine Type Communication (MTC) traffic, while in [21], the authors proposed the method for modelling the DRX mechanism in LTE wireless networks with the help of Poisson traffic. In the same way, in [16], the analytical model is used to study the influence of fixed and adjustable DRX cycle mechanism in LTE network, using the bursty packet data traffic with the help of semi Markov process.…”

Section: B Drx Power Saving Methodsmentioning

confidence: 99%

“…In the same way, in [16], the analytical model is used to study the influence of fixed and adjustable DRX cycle mechanism in LTE network, using the bursty packet data traffic with the help of semi Markov process. However, these proposed methods [35], [21], and [16], do not consider the QoS features such as fair resources allocation, packet loss rate and throughput, which are badly effected with the DRX mechanism in LTE networks.…”

Section: B Drx Power Saving Methodsmentioning

confidence: 99%

See 1 more Smart Citation

QoE Power-Efficient Multimedia Delivery Method for LTE-A

Mellouk

Augustin

Fowler

2016

IEEE Systems Journal

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Abstract-The fastest growing of multimedia services over future wireless communication system demand more network resources, efficient delivery of multimedia service with high users satisfaction, and power optimization of User Equipments (UEs). The resources and power optimization are significant in future mobile computing systems, because emerging multimedia services consume more resources and power. The 4G standard of LTE-A wireless system has adopted the Discontinuous Reception (DRX) method to extend and optimize the UE battery life, while there is no standard scheduling method to distribute the radio resources among the UE. This paper presents a downlink scheduler, i.e. Quality of Experience (QoE) Power Efficient Method (QEPEM) for LTE-A, which efficiently allocates the radio resources and optimizes the use of UE power using the DRX mechanism. We investigates how the different duration of DRX Light and Deep Sleep cycle influences the QoS and QoE of end users, using VoIP over the LTE-A. The QEPEM is evaluated with the traditional methods, in terms of System Throughput, Fairness Index, Packet Loss Rate, and Packet Delay. The QEPEM measures the user's QoE, and feedback to eNodeB for scheduling decisions along with other important parameters. Our proposed method reduces the packet delay, packet loss, and increases the fairness and UE's power saving with high users satisfaction.

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Section: B Drx Power Saving Methodsmentioning

confidence: 99%

Section: B Drx Power Saving Methodsmentioning

confidence: 99%

QoE Power-Efficient Multimedia Delivery Method for LTE-A

Mellouk

Augustin

Fowler

2016

IEEE Systems Journal

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“…The authors of [16] presented a LTE DRX model with bursty and Poisson traffic. The main drawback of this model is the assumption that a packet (always) arrives during the sleep period and it has to be delayed and buffered.…”

Section: Related Workmentioning

confidence: 99%

“…DRX's power saving performance and its behavior has been studied and described over the past few years in both simulated and analytical works [2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]. The first analytical model for the DRX operation was described in the predecessor of the 3GPP LTE-A, Universal Mobile Telecommunications System (UMTS) [17,8].…”

Section: Introductionmentioning

confidence: 99%

Analytical evaluation of extended DRX with additional active cycles for light traffic

et al. 2015

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LTE and LTE-Advanced mobile technologies have integrated discontinuous reception (DRX) power saving method to optimize the power consumption at the user equipment (UE). The DRX method was proposed by the 3rd Generation partnership Project (3GPP), and since then, the traffic behavior has been analyzed in several studies with a standard 3-state DRX model to describe the trade-off between power saving and delay. In this paper, we presented a novel 4-state and 5-state 3GPP LTE DRX mechanisms. The proposed mechanisms were developed by augmenting (an) active state(s) to deep and/or light sleep cycle of standard 3-state DRX for handling a small burst of packets, thereby bypassing the process of returning to the timer-dependent active mode. We have generated analytical models using a semi-Markov process for bursty packet data traffic and evaluated these augmented DRX mechanisms against a standard 3-state DRX method. Overall, the analytical results from varying timing parameters showed that our augmented DRX (both 4-state and 5-state) improved power saving factor (ranging between 1% and 8%) and reduced delay (ranging between 20% and 60%) compared to the standard 3-state DRX. Furthermore, the magnitude of improvement for both delay and power-saving was somewhat greater in 5-state than 4-state.

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“…In [19][20][21], the DRX operation with bursty traffic was modeled by a semi-Markov process to derive the equations of power saving and delay performance. Authors in [22] adopted an approach of dividing the DRX operation into several independent parts, which was claimed to be easier for theoretical analysis of accurate power saving factor and packet transmission delay. Optimized selection of DRX configuration is concerned about the trade-off between power saving efficiency and delay performance.…”

Section: Related Researchmentioning

confidence: 99%

Adaptive load-based and channel-aware power saving for non-real-time traffic in LTE

Yang

Chen

Mai

et al. 2015

J Wireless Com Network

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The popularity of handheld devices, which are usually powered by batteries, has made power saving an important and practical issue in recent years. Techniques of power saving for user devices using mobile communication systems such as WiMAX and LTE (Long-Term Evolution) are parts of the major focuses in the literature. In this paper, two revised schemes of the authors' previously proposed power saving schemes for IEEE 802.16 are proposed to be applied in LTE. The proposed schemes, namely LTE-LBPS-Aggr and LTE-LBPS-Merge, estimate the input load by traffic measurement and the channel capacity by channel quality indicator (CQI) reports, calculate the length of the sleep cycle, and notify related user equipments (UEs) of the next radio-on time for receiving data. The difference between LTE-LBPS-Aggr and LTE-LBPS-Merge lies in the grouping of UEs for sleep scheduling. LTE-LBPS-Aggr treats all UEs in a group, while LTE-LBPS-Merge allows multiple groups of UEs in sleep scheduling. The simulation study shows that in comparison with standard-based mechanisms, the proposed schemes can achieve better power saving efficiency at the cost of moderate increase on delays and the signaling overhead.

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Numerical Analysis of the Power Saving in 3GPP LTE Advanced Wireless Networks

Cited by 79 publications

References 22 publications

QoE Power-Efficient Multimedia Delivery Method for LTE-A

QoE Power-Efficient Multimedia Delivery Method for LTE-A

Analytical evaluation of extended DRX with additional active cycles for light traffic

Adaptive load-based and channel-aware power saving for non-real-time traffic in LTE

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