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2013 IEEE Online Conference on Green Communications (OnlineGreenComm)最新文献

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A weighted fair queuing algorithm for charging electric vehicles on a smart grid 智能电网电动汽车充电的加权公平排队算法
Pub Date : 2013-10-29 DOI: 10.1109/OnlineGreenCom.2013.6731041
Yingjie Zhou, N. Maxemchuk, Xiangying Qian, Yasser Mohammed
We are concerned with charging electric vehicles at home. The energy demand from electric vehicles can increase more rapidly than our ability to increase the generating capacity or the distribution facilities in the electric network. Our objective is to use a smart power distribution algorithm to reduce the inconvenience to electric vehicle owners. When there isn't sufficient capacity to charge all of the vehicles simultaneously, we will select different subsets of vehicles to charge in each 5 minute interval. The smart grid will control a switch on each charger. The order in which we charge the vehicles has a significant effect on the number of vehicles that are delayed when they would like to leave the charging station, and the amount of time that they are delayed. By reducing these measures, electric vehicles can be deployed more rapidly. We compare a weighted fair queuing algorithm for selecting the charging order and compare it with a first-come-first-served algorithm and a round robin charging rule. The weights are selected based on the battery level when vehicles arrive at their charging stations. We assume that there is a correlation between day-to-day driving distances, and charge vehicles that require more charge more rapidly. The three charging rules are evaluated using measured data on the power usage, commuting characteristics, and the distribution of commuting times.
我们关心的是在家里给电动汽车充电。电动汽车的能源需求增长速度可能会超过我们增加发电能力或电网配电设施的能力。我们的目标是使用智能配电算法来减少给电动汽车车主带来的不便。当没有足够的容量同时为所有车辆充电时,我们将每隔5分钟选择不同的车辆子集进行充电。智能电网将控制每个充电器上的开关。我们给车辆充电的顺序对车辆在想要离开充电站时被延迟的数量以及被延迟的时间有很大的影响。通过减少这些措施,电动汽车可以更快地部署。我们比较了一种加权公平排队算法来选择收费顺序,并将其与先到先得算法和轮循收费规则进行了比较。权重是根据车辆到达充电站时的电池电量来选择的。我们假设日常行驶距离之间存在相关性,并且需要更多充电的车辆充电速度更快。利用电能使用、通勤特性和通勤时间分布的实测数据对这三种充电规则进行了评估。
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引用次数: 6
Power consumption evaluation of circuit-switched versus packet-switched optical backbone networks 电路交换与分组交换光骨干网络的功耗评估
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731029
Ward Van Heddeghem, B. Lannoo, D. Colle, M. Pickavet, F. Musumeci, A. Pattavina, F. Idzikowski
While telecommunication networks have historically been dominated by a circuit-switched paradigm, the last decades have seen a clear trend towards packet-switched networks. In this paper we evaluate how both paradigms perform in optical backbone networks from a power consumption point of view, and whether the general agreement of circuit switching being more power-efficient holds. We consider artificially generated topologies of various sizes, mesh degrees and-not yet previously explored in this context-transport linerates. We cross-validate our findings with a number of realistic topologies. Our results show that, as a generalization, packet switching can become preferable when the traffic demands are lower than half the transport linerate. We find that an increase in the network node count does not consistently increase the energy savings of circuit switching over packet switching, but is heavily influenced by the mesh degree and (to a minor extent) by the average link length.
虽然电信网络在历史上一直由电路交换范例主导,但过去几十年已经看到了分组交换网络的明显趋势。在本文中,我们从功耗的角度评估了这两种范式在光骨干网络中的表现,以及电路交换更节能的一般协议是否成立。我们考虑人工生成的各种大小、网格度的拓扑,以及尚未在此上下文中探索的传输线。我们用一些实际的拓扑交叉验证了我们的发现。我们的结果表明,一般来说,当流量需求低于传输带宽的一半时,分组交换更可取。我们发现,网络节点数的增加并不总是增加电路交换比分组交换的节能,而是受到网格度和(在较小程度上)平均链路长度的严重影响。
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引用次数: 15
Joint information and energy transfer in the spatial domain with channel estimation error 具有信道估计误差的空间域联合信息和能量传递
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731038
S. Timotheou, I. Krikidis
In this paper, we investigate a new technique for simultaneous information and energy transfer in multiple-input multiple-output (MIMO) networks with radio frequency (RF) energy harvesting (EH) capabilities. The proposed technique exploits the spatial decomposition of the MIMO channel and uses the eigenchannels either to convey information or to transfer energy. In order to generalize our study, we consider channel estimation error in the decomposition process and we model the interference between the eigenchannels. An optimization problem that minimizes the total transmitted power subject to information and energy constraints is formulated as a mixed-integer nonlinear program and solved to optimality by a polynomial complexity algorithm developed by exploiting the special characteristics of the problem. Numerical results show that the imperfect channel estimation is beneficial from RF - EH standpoint and is characterized by an optimal (non-zero) value.
在本文中,我们研究了一种在具有射频能量收集(EH)能力的多输入多输出(MIMO)网络中同时进行信息和能量传输的新技术。该技术利用MIMO信道的空间分解,利用特征信道传递信息或传递能量。为了推广我们的研究,我们在分解过程中考虑了信道估计误差,并对特征信道之间的干扰进行了建模。将一个受信息和能量约束的总传输功率最小的优化问题表述为一个混合整数非线性规划,并利用该问题的特点,采用多项式复杂度算法求解其最优性。数值结果表明,从射频- EH的角度来看,不完全信道估计是有益的,并且具有最优(非零)值的特征。
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引用次数: 15
A nested game-based optimization framework for electricity retailers in the smart grid with residential users and PEVs 一个嵌套的基于博弈的智能电网电力零售商优化框架与住宅用户和pev
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731045
Y. Li, Yanzhi Wang, Shahin Nazarian, Massoud Pedram
In the smart grid, real-time pricing policy is an important mechanism for incentivizing the consumers to dynamically change or shift their electricity consumption, thereby improving the reliability of the grid. Retailers are incorporated to the smart grid with distributed control mechanism in order to reduce the amount of communication overhead associated with the direction interaction between utility companies and consumers. The retailer procures electricity from both traditional and renewable energy sources, and sells it to its consumers. The consumers include residential users that can only consume power, and plug-in electric vehicles (PEVs) that can either consume power or supply power stored in its battery to the grid. In this work, a novel four-stage nested game model is proposed to model the interaction of the electricity retailer, utility companies, and consumers. The objective of the retailer is to maximize its overall profit as well as perform frequency regulation, whereas the goal of each consumer is to maximize a predefined utility function. In the game theoretic framework, the retailer should decide the amounts of electricity purchased from the renewable and traditional energy sources, respectively, as well as the real-time pricing scheme for its consumers. The consumers will react to the pricing mechanism and maximize their utility functions by adjusting the electricity demand. The optimal solution of the nested game is provided through: (i) finding the subgame perfect equilibrium (SPE) of all the consumers, and (ii) optimizing the retailer's action using the backward induction method. Experimental results demonstrate the effectiveness of the proposed game theoretic modeling and optimization framework.
在智能电网中,实时电价政策是激励用户动态改变或转移用电量,从而提高电网可靠性的重要机制。通过分布式控制机制将零售商纳入智能电网,以减少公用事业公司与消费者之间的方向交互所带来的通信开销。这家零售商从传统能源和可再生能源中获取电力,并将其出售给消费者。消费者包括只能消耗电力的住宅用户,以及可以消耗电力或将存储在电池中的电力提供给电网的插电式电动汽车(pev)。在这项工作中,提出了一个新的四阶段嵌套博弈模型来模拟电力零售商、公用事业公司和消费者之间的互动。零售商的目标是最大化其整体利润并进行频率调节,而每个消费者的目标是最大化预定义的效用函数。在博弈论框架下,零售商应分别决定从可再生能源和传统能源购买的电量,并为其消费者制定实时定价方案。消费者会对定价机制作出反应,通过调整电力需求来实现效用函数的最大化。通过(i)找到所有消费者的子博弈完美均衡(SPE), (ii)利用逆向归纳法优化零售商的行为,给出了嵌套博弈的最优解。实验结果证明了所提出的博弈论建模和优化框架的有效性。
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引用次数: 6
Energy-efficient cascaded bit-interleaving protocol for integrated optical access/in-building networks 集成光接入/楼内网络的节能级联位交错协议
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731049
T. Ayhan, A. R. Dhaini, L. Kazovsky, D. Suvakovic, H. Chow
This paper proposes and experimentally evaluates the Cascaded Bit-interleaving architecture and protocol, an energy-efficient solution that aims to reduce the power consumption of integrated optical access/in-building networks, while offering high-speed Internet service to end-users. In the new architecture, optical-electrical-optical (OED) regeneration is employed at the interface between the access and in-building networks, and downstream frames are generated at the central office using the two-stage bit-interleaving scheme. The users' network nodes only process the data destined for them without any buffering at a lower clock rate than the aggregate PON rate, thereby significantly reducing their energy consumption. Simulation and experimental results demonstrate the proof of concept and show that the power consumption of the access/in-building network can be significantly reduced when the proposed cascaded bit-interleaving protocol is employed.
本文提出并实验评估了级联比特交织架构和协议,这是一种节能的解决方案,旨在降低集成光接入/楼宇内网络的功耗,同时为最终用户提供高速互联网服务。在新架构中,在接入网和楼内网之间的接口上采用了光-电-光(OED)再生,而在中心局使用两级比特交错方案生成下游帧。用户的网络节点只以低于总PON速率的时钟速率处理发送给用户的数据而不进行任何缓冲,从而大大降低了用户的能耗。仿真和实验结果证明了概念的正确性,并表明采用所提出的级联位交错协议可以显著降低接入/楼宇网络的功耗。
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引用次数: 4
What do we need to do to “green” data-center networks? A fundamental perspective 我们需要为“绿色”数据中心网络做些什么?基本视角
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731033
P. Grover
While traditional information theory has driven the choice of communication strategies for most of today's communication systems, it focuses almost exclusively on minimizing the transmit power of the system. In modern short-distance applications, including high-speed data-center networks, the energy consumed in the circuitry to enable reliable between servers can dominate the transmit energy across the links. Recent theoretical results and empirical observations show that in such situations, operating close to the traditional information-theoretic limits can be highly inefficient from a system-level energy-perspective. In this position paper, we use these results to propose a way forward for obtaining energy-efficient strategies for future Ethernet, including the NGBASE Ethernet which is currently being standardized. We also introduce our Total Energy Minimization platform, TotEM, that will collect information to enable communication system designers to make the most energy-efficient choices.
虽然传统的信息理论驱动了当今大多数通信系统的通信策略选择,但它几乎只关注最小化系统的发射功率。在包括高速数据中心网络在内的现代短距离应用中,为保证服务器之间的可靠性而消耗的电路能量可能会主导整个链路的传输能量。最近的理论结果和经验观察表明,在这种情况下,从系统级能量的角度来看,接近传统信息理论极限的操作可能非常低效。在这篇意见书中,我们利用这些结果提出了未来以太网(包括目前正在标准化的NGBASE以太网)获得节能策略的方法。我们还推出了我们的总能源最小化平台TotEM,该平台将收集信息,使通信系统设计人员能够做出最节能的选择。
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引用次数: 1
Power control in opportunistic and efficient resource block allocation algorithms for green LTE uplink networks 绿色LTE上行网络中机会有效资源块分配算法的功率控制
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731021
F. Kaddour, E. Vivier, M. Pischella, L. Mroueh, P. Martins
The energy efficiency in wireless networks is currently a central concern of research. We propose in this paper a new energy efficiency scheme which allocates the mobile's transmission power in function of the allocated Resource Blocks (RB) and the channel conditions of the user on the allocated RBs. We focus on the energy efficiency of the Opportunistic and Efficient Resource Block Allocation (OEA) algorithm and its variant adapted to the Quality of Service (QoS) of the traffics: the QoS based OEA for LTE uplink networks. The OEA and the QoS based OEA allocate the RBs to UEs efficiently and with respect to the SC-FDMA constraints, such that, for one user, contiguous RBs are allocated, and the same Modulation and Coding Scheme (MCS) is used over the whole allocated RBs. Once RBs are allocated to UEs, power control is then applied to the mobile's transmission power considering the MCS used and the channel conditions. This energy efficiency allows users to achieve the same throughput than before the power control and does not affect the MCS selection established at the RB allocation step. This new scheme allows the transmission of a high number of bits per Joule.
无线网络的能源效率是目前研究的中心问题。本文提出了一种新的节能方案,该方案根据分配的资源块(Resource block, RB)和用户在分配的资源块上的信道条件来分配移动设备的传输功率。我们重点研究了机会和有效资源块分配(OEA)算法的能源效率及其适应业务服务质量(QoS)的变体:基于QoS的LTE上行网络OEA。OEA和基于QoS的OEA根据SC-FDMA约束有效地将RBs分配给ue,这样,对于一个用户,分配连续的RBs,并且在整个分配的RBs上使用相同的调制和编码方案(MCS)。一旦RBs被分配给ue,那么考虑到所使用的MCS和信道条件,对移动设备的传输功率进行功率控制。这种能源效率允许用户实现与功率控制之前相同的吞吐量,并且不会影响在RB分配步骤中建立的MCS选择。这种新方案允许每焦耳传输大量比特。
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引用次数: 7
Designing a governor policy for energy saving and heat control in frequency-scaling green routers 变频绿色路由器节能热控调控策略设计
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731036
A. Lombardo, Vincenzo Riccobene, G. Schembra
Energy costs for telecommunications networks are mainly due to the consumption of both devices and cooling facilities. For this reason the target of this paper is to propose an analytical discrete-time Markov model that allows green router designers to both evaluate performance of temperature-constrained green routers and design Governor policies to achieve the best trade-off between quality of service and energy saving in respect of a given target on the working temperature. The proposed model is applied to a case study to show how it can be used to the above purposes.
电信网络的能源成本主要是由于设备和冷却设施的消耗。因此,本文的目标是提出一个解析的离散时间马尔可夫模型,该模型允许绿色路由器设计者既评估温度约束绿色路由器的性能,又设计总督策略,以在给定目标的工作温度下实现服务质量和节能之间的最佳权衡。建议的模型应用于一个案例研究,以展示如何将其用于上述目的。
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引用次数: 0
A greener MAC layer protocol for smart home wireless sensor networks 智能家居无线传感器网络的绿色MAC层协议
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731047
Sajjadul Latif, Xavier N Fernando, A. Fung, F. Janabi-Sharifi
The wireless sensor network (WSN) is an important element on many advanced, energy efficient data acquisition (DAQ), and control systems. Sleep/wake-up scheduling and network overhead are some of the major burdens to achieve energy efficient WSNs. In this paper, an energy efficient communication algorithm is proposed for smart home sensor networks. The proposed approach targets the wasted energy during the idle listening, collision, and overhearing processes. A three-tier Medium Access Control (MAC) protocol has been developed to minimize the total energy consumption of the network. The new protocol reduces the total energy requirement by each node, facilitates confirmed communication for steady traffic, and gives adaptive control during varying traffic load. Overall, the proposed MAC protocol shows better performance than conventional WSN protocols.
无线传感器网络(WSN)是许多先进、节能的数据采集(DAQ)和控制系统的重要组成部分。睡眠/唤醒调度和网络开销是实现节能无线传感器网络的一些主要负担。针对智能家居传感器网络,提出了一种节能的通信算法。该方法针对空闲监听、碰撞和偷听过程中所浪费的能量。为了最大限度地降低网络的总能耗,开发了三层介质访问控制(MAC)协议。新协议降低了各节点的总能量需求,有利于稳定流量的确认通信,并在不同的流量负载下进行自适应控制。总的来说,所提出的MAC协议比传统的WSN协议表现出更好的性能。
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引用次数: 5
TAG — We're it (the IEEE 802.24 Smart Grid TAG) TAG -我们是它(IEEE 802.24智能电网TAG)
Pub Date : 2013-10-01 DOI: 10.1109/OnlineGreenCom.2013.6731044
Tim Godfrey, C. Powell, B. Rolfe, S. Sasaki
This paper provides an informative overview of the recently formed IEEE 802.24 Smart Grid Technical Advisory Group (TAG) and the role of IEEE 802 communications standards in Smart Grid. Communications are an integral part in the definition of the Smart Grid. Standards and recommendations developed by the IEEE 802 LAN/MAN Standards Committee (LMSC) and its Working Groups are a critical element in data communications for the smart grid.
本文提供了最近成立的IEEE 802.24智能电网技术咨询小组(TAG)的信息概述以及IEEE 802通信标准在智能电网中的作用。通信是智能电网定义中不可或缺的一部分。IEEE 802局域网/城域网标准委员会(LMSC)及其工作组制定的标准和建议是智能电网数据通信的关键要素。
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引用次数: 0
期刊
2013 IEEE Online Conference on Green Communications (OnlineGreenComm)
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