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2020 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)最新文献

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Performance Evaluation of Multipath VLC Links for Different Transmitter Configurations 不同发射机配置下多径VLC链路性能评估
S. Jaiswal, Rishu Raj, A. Dixit
Visible light communication (VLC) is an optical wireless communication technology in which light-emitting diodes (LEDs) used for illumination are also used for communication. Due to its numerous advantages, it is being actively researched for implementation in 5G cellular systems. In VLC, signals from transmitter panels can reach the receiver through numerous paths because of the reflections from walls. Consequently, these signals suffer from time dispersion, thereby imposing an upper limit on the achievable data rate. This time dispersion depends on a number of factors like wall reflectivity, receiver location, transmitter position, detector area, LED semiangle etc. So, there is a need to include the effect of multiple reflections (occurring in the practical indoor environment) in the performance evaluation of indoor VLC link. We obtain various channel parameters like mean excess delay, RMS delay, coherence bandwidth etc. by simulations in MATLAB to characterize the multipath channel for different transmitter configurations. We also study the error performance of the multipath VLC system in the presence of inter symbol interference (ISI). Moreover, we analyze the effect of LED semiangle on the channel characterization and error performance of multipath VLC links.
可见光通信(VLC)是一种光无线通信技术,其中用于照明的发光二极管(led)也用于通信。由于其众多优点,正在积极研究在5G蜂窝系统中实现。在VLC中,由于墙壁的反射,来自发射器面板的信号可以通过许多路径到达接收器。因此,这些信号受到时间色散的影响,从而对可实现的数据速率施加了上限。此时色散取决于许多因素,如墙壁反射率,接收器位置,发射器位置,检测器面积,LED半角等。因此,有必要在室内VLC链路的性能评价中考虑多重反射(发生在实际室内环境中)的影响。通过MATLAB仿真,我们获得了各种信道参数,如平均超额延迟、RMS延迟、相干带宽等,以表征不同发射机配置下的多径信道。我们还研究了多径VLC系统在码间干扰(ISI)存在下的误差性能。此外,我们还分析了LED半角对多径VLC链路信道特性和误差性能的影响。
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引用次数: 1
Group based Publisher-Subscriber Communication Primitives for ndnSIM nnsim的基于组的发布者-订阅者通信原语
S. Ananthakrishnan, M. Tahiliani, D. Tandur, H. Satheesh
Named Data Networking (NDN), an information centric network architecture, aims to provide an efficient and scalable alternative for content distribution. Modern Internet applications have more emphasis on data, and are less concerned about the location from where data is retrieved. NDN’s communication primitives being strictly pull based help in bringing this focus shift from location of data to the data itself. A concern for NDN is to enable the support of other popular communication primitives, such as the Publisher-Subscriber (Pub-Sub) model, seamlessly. The Pub-Sub model is well suited for applications that require periodic retrieval of data or event triggered data, such as in Industrial Automation Control Systems (IACS). This paper presents the design and development of a model to support the group based Pub-Sub communication primitives in ndnSIM, a popular ns-3 based network simulator for NDN. The functionality of the proposed model is tested by developing an end-to-end simulation environment in ndnSIM that is representative of the popular use cases of Pub-Sub communication primitives.
命名数据网络(NDN)是一种以信息为中心的网络架构,旨在为内容分发提供一种高效且可扩展的替代方案。现代Internet应用程序更加强调数据,而不太关心从何处检索数据。NDN的通信原语严格地基于拉,这有助于将焦点从数据的位置转移到数据本身。NDN的一个关注点是能够无缝地支持其他流行的通信原语,例如发布者-订阅者(Pub-Sub)模型。Pub-Sub模型非常适合需要定期检索数据或事件触发数据的应用程序,例如在工业自动化控制系统(IACS)中。本文设计和开发了一个模型,以支持nnsim(一种流行的基于ns-3的NDN网络模拟器)中基于分组的Pub-Sub通信原语。通过在ndnSIM中开发端到端模拟环境来测试所提议模型的功能,该环境代表了流行的Pub-Sub通信原语用例。
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引用次数: 0
Machine Learning and Caching based Efficient Data Retrieval Framework 基于机器学习和缓存的高效数据检索框架
Shashwati Mishra, Rahul Bajpai, Naveen Gupta, Vibhutesh Kumar Singh
The explosive growth of wireless data and traffic, accompanied by the rapid advancements in intelligence and the processing power of user equipments (UEs), poses a very difficult challenge to the data providers to maintain the high data rate with sustainable quality-of-service (QoS). A lot of data can be saved by using caching based communication techniques, which would save the service providers a fortune and will make internet connectivity even more affordable. Also, there is room for saving bandwidth and using the limited number of servers and towers efficiently outputting a steadily healthy QoS. We propose an efficient data retrieval framework that uses caching based on the popularity of the pages where the popularity of pages is determined by the number of hits it gets over a month, which is the learning phase of the model and how frequently a given web page is requested. The proposed framework uses a causal decision tree in the background to determine the popularity of pages according to which the algorithm decides whether a given page is worthy of being cached or not. Results show that our proposed model outperforms the conventional data retrieval models in terms of cache missed probability.
无线数据和流量的爆炸式增长,伴随着智能和用户设备处理能力的快速发展,给数据提供商在保持高数据速率的同时保持持续的服务质量(QoS)提出了非常艰巨的挑战。通过使用基于缓存的通信技术可以节省大量数据,这将为服务提供商节省一大笔钱,并将使互联网连接更加实惠。此外,还有节省带宽和使用有限数量的服务器和发射塔有效输出稳定健康的QoS的空间。我们提出了一个高效的数据检索框架,该框架基于页面的受欢迎程度使用缓存,其中页面的受欢迎程度取决于它在一个月内获得的点击次数,这是模型的学习阶段,以及给定网页被请求的频率。该框架在后台使用因果决策树来确定页面的受欢迎程度,算法根据该树来决定给定页面是否值得缓存。结果表明,该模型在缓存缺失概率方面优于传统的数据检索模型。
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引用次数: 1
Capacity of Ligand Receptor Channel with Markovian Symbol Detection 基于马尔可夫符号检测的配体受体通道容量
Muskan Ahuja, Ankit, M. Bhatnagar
Stochastic representation of ligand receptor binding is important to provide a receiver modeling of the molecular communication system. In this paper, we model the binding of a finite number of ligand receptors on the receiver with discrete time Markov chains. A novel Markov chain model is introduced for the final output which considers the combined effect of responses received on each ligand receptor. Moreover, the maximum rate at which the proposed chemical binding can operate is presented by analytically quantifying the discrete time capacity of the ligand channel for a binary source. The derived capacity analysis clearly articulates the advantage obtained by employing multiple receptors over a single receptor in a biological signaling scenario with a threshold detector giving the final output.
配体受体结合的随机表示对于提供分子通信系统的接收器建模是重要的。本文用离散时间马尔可夫链对有限数量的配体受体在接收器上的结合进行了建模。引入了一种新的马尔可夫链模型,该模型考虑了每个配体受体接收到的响应的综合效应。此外,通过分析量化二元源的配体通道的离散时间容量,给出了所提出的化学结合可以操作的最大速率。导出的容量分析清楚地阐明了在阈值检测器给出最终输出的生物信号场景中,通过使用多个受体而不是单个受体获得的优势。
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引用次数: 3
PCRF: On the blocking probability of LTE-A PCRF:关于LTE-A的阻塞概率
P. Mandal
Policy and charging rule function (PCRF) is a node in LTE-A network for provisioning of policy and charging resources to policy and charging enforcement function (PCEF) of PDN gateway (PGW). During policy allocation the PCRF allocates bandwidth to a call, depending on the total bandwidth available between PGW and the external packet data network. In this work, we analytically find the blocking probability of voice and video call from the policy provisioning perspective. Further we show that, if the available bandwidth between PGW and packet data network is not sufficient, it can create blocking of calls. Not only that, for a given value of arrival rate, we can find the optimal bandwidth between PGW and packet data network to decrease the blocking probability.
PCRF (Policy and charging rule function)是LTE-A网络中的一个节点,用于向PDN网关的PCEF (Policy and charging enforcement function)发放策略和计费资源。在策略分配过程中,PCRF根据PGW与外部分组数据网络之间可用的总带宽为呼叫分配带宽。在这项工作中,我们从策略配置的角度分析了语音和视频呼叫的阻塞概率。进一步我们表明,如果PGW和分组数据网络之间的可用带宽不够,它可能会造成呼叫阻塞。不仅如此,对于给定的到达率值,我们可以找到PGW和分组数据网络之间的最优带宽,以降低阻塞概率。
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引用次数: 0
Quality of Experience Aware Medium Access Control in Attocell Network 小区网络中感知体验质量的介质访问控制
Kshitiza Singh, A. Dixit, V. Jain
With the development of converged optical-wireless networks, the mobile users can access a very high bandwidth, any time and anywhere, for the upcoming real-time applications. In the modern digital world, quality-of-experience (QoE) has become the central area of concern to ensure end-to-end user satisfaction. In this paper, we analyze the quality-of-service (QoS) for different traffic classes for a radio-over-fiber (RoF) based attocell network. For this, we use a simple polling algorithm with dynamic weighted queuing for grant sizing and maintains a delay within the maximum bounds for high and medium priority traffic classes with high channel utilization. Further, we propose a model to map QoE with the QoS parameters, like delay, jitter, and packet loss rate, and quantify QoE by representing the degree of user satisfaction by a mean opinion score.
随着光无线融合网络的发展,移动用户可以随时随地访问非常高的带宽,为即将到来的实时应用提供了条件。在现代数字世界中,体验质量(QoE)已成为确保端到端用户满意度的核心关注领域。在本文中,我们分析了基于无线光纤(RoF)的蜂窝网络在不同业务类别下的服务质量(QoS)。为此,我们使用一种简单的轮询算法,该算法带有动态加权排队,用于授予大小,并在具有高通道利用率的高优先级和中等优先级流量类的最大界限内保持延迟。此外,我们提出了一个映射QoS参数(如延迟、抖动和丢包率)的QoE模型,并通过用平均意见得分表示用户满意度来量化QoE。
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引用次数: 0
An Efficient Probabilistic Model for Anomaly Prediction in Aerial Ad Hoc Networks 一种有效的空中自组网异常预测概率模型
C. Titouna, Farid Naït-Abdesselam
The increasing use of Unmanned Aerial Vehicles (UAVs) in various applications of Aerial Ad Hoc Networks, such as precision agriculture and aerial remote sensing, is fast contributing to their adoption in many civilian applications. Generally equipped with multiple sensors, such as cameras and movement detectors, UAVs are also deployed in hostile environments such as disaster zones or military fields. Therefore, and in order to ensure the success of any deployment of Aerial Ad hoc Networks, detecting and isolating failures is of great importance to allow a high level of security and reliability. In this research, we first introduce a model using a Bayesian network that copes with this type of issues and tries to detect any faulty UAV. Second, we develop a probabilistic predictive scheme to avoid the unexpected failure of a UAV. The proposed approach is validated using realistic synthetic datasets provided by the UAV laboratory at the University of Minnesota.
无人机(uav)在空中自组织网络的各种应用中的使用越来越多,例如精准农业和航空遥感,正在迅速促进其在许多民用应用中的采用。通常配备多个传感器,如摄像头和运动探测器,无人机也部署在恶劣环境中,如灾区或军事领域。因此,为了确保任何空中自组织网络部署的成功,检测和隔离故障对于实现高水平的安全性和可靠性非常重要。在这项研究中,我们首先引入了一个使用贝叶斯网络的模型来处理这类问题,并试图检测任何有故障的无人机。其次,我们开发了一种概率预测方案来避免无人机的意外故障。采用明尼苏达大学无人机实验室提供的真实合成数据集验证了所提出的方法。
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引用次数: 2
Low Complexity Based QR-LRL OSIC Detector for Downlink NOMA-MIMO Systems 基于低复杂度的下行NOMA-MIMO系统QR-LRL OSIC检测器
Rahul Makkar, Venugopalachary Kotha, D. Rawal, Vijay Kumar Chakka, N. Sharma
Power domain NOMA SISO system achieve more capacity compared to OMA system for a given power. To enhance the overall system capacity, NOMA-MIMO based downlink system with superposition coding (SC) coding is considered in this work. With the incorporation of MIMO, the detector subject to interuser as well as interantenna interference. Conventionally, after receiving the signal from the base station (BS), each user eliminates the interantenna interference using zero-forcing (ZF) based linear detector. This paper proposes low-complexity based QR-LRL detector to overcome jointly the interuser interference and interantenna interference. The performance of the proposed detector under BER and capacity metrics compared with ZFSIC and ML detectors. Simulation results show that the proposed receiver guarantees near ML performance with lower complexity for NOMA-MIMO downlink systems. It presents the sumrate improvement for various MIMO configurations with different modulation orders. It also provides optimal power allocation factor $(alpha)$ to experience the same BER at both the near user (NU) and the far user (FU) using ZF and QR-LRL detector.
功率域NOMA SISO系统在给定功率下比OMA系统实现更大的容量。为了提高系统的整体容量,本文考虑了基于NOMA-MIMO的下行系统与叠加编码(SC)编码。随着MIMO的引入,探测器受到用户间和天线间的干扰。传统上,每个用户在接收到来自基站(BS)的信号后,使用基于零强迫(ZF)的线性检测器消除天线间干扰。为了克服用户间干扰和天线间干扰,提出了一种基于低复杂度的QR-LRL检测器。该检测器在误码率和容量指标下的性能与ZFSIC和ML检测器进行了比较。仿真结果表明,该接收机能够以较低的复杂度保证NOMA-MIMO下行系统接近机器学习的性能。针对不同调制阶数的MIMO配置,给出了系统性能的改进。它还提供了最佳的功率分配因子$(alpha)$,使用ZF和QR-LRL检测器在近用户(NU)和远用户(FU)处获得相同的BER。
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引用次数: 2
Deep Reinforcement Learning based Traffic Signal optimization for Multiple Intersections in ITS 基于深度强化学习的ITS多路口交通信号优化
A. Paul, S. Mitra
The number of vehicles is drastically increasing worldwide, especially in large cities. Thus there is a need to model and enhance the traffic management to help meet this rising requirement. The primary purpose of traffic management is to reduce traffic congestion by optimizing traffic signal, which is currently one of the main concerns. Reinforcement Learning (RL) approaches in Intelligent Transportation System (ITS) are infeasible for traffic management of large road networks. However, Deep Reinforcement Learning (DRL) is capable of handling this enlarged problem. In order to manage the traffic flow of a large road network, there is a strong need for coordination between traffic signals of the intersections, enabling vehicles to pass through intersections more easily. In this paper, a single DRL agent manages the traffic signal of multiple intersections using policy gradient algorithm. In particular, the agent is trained with spatio-temporal data of the environment that allows it to perform action in different deep neural network models. The simulation experiment is studied in terms of three different simulation metrics. The proposed system outperforms while comparing it with the baseline i.e. fixed signal duration systems.
世界范围内的汽车数量急剧增加,尤其是在大城市。因此,有必要模拟和加强交通管理,以帮助满足这一日益增长的需求。交通管理的主要目的是通过优化交通信号来减少交通拥堵,这是目前人们关注的主要问题之一。智能交通系统(ITS)中的强化学习(RL)方法在大型道路网络的交通管理中是不可行的。然而,深度强化学习(DRL)能够处理这个扩大的问题。为了管理大型道路网络的交通流量,迫切需要交叉口交通信号之间的协调,使车辆更容易通过交叉口。本文采用策略梯度算法对单个DRL代理管理多个交叉口的交通信号。特别是,智能体使用环境的时空数据进行训练,使其能够在不同的深度神经网络模型中执行动作。根据三种不同的仿真指标对仿真实验进行了研究。与基线(即固定信号持续时间系统)相比,所提出的系统表现优异。
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引用次数: 8
ArsPAN: Attacker Revelation Scheme using Discrete Event System in 6LoWPAN based Buffer Reservation Attack 基于6LoWPAN的缓冲区保留攻击中使用离散事件系统的攻击者揭示方案
Dipojjwal Ray, Pradeepkumar Bhale, S. Biswas, Sukumar Nandi, P. Mitra
6LoWPAN, an adaptation layer designed by IETF, is meant for IPv6 connectivity over lossy links and low power resource constrained devices using the IEEE 802.15.4 networks. Of late, the growing emergence of Internet of Things (IoT) enabled devices in areas such as industrial Cyber Physical Systems (CPS) and home automation has mobilized extensive implementation of 6LoWPAN. However, absence of authentication mechanisms render the adaptation layer prone to various attacks arising out of duplicated or fabricated fragments. Buffer Reservation Attack targets the vulnerability induced due to fictitious allocation of the butter, which then denies new packets from occupancy till timeout. Existing research works to mitigate such attacks resort to cryptographic solutions and split butter approaches to intelligently guarantee butter reservation. In this paper we propose an attacker revelation scheme using Discrete Event Systems (DES) in the framework of Finite State Machines (FSM). The motivation behind our countermeasure is that no work has addressed identification of the adversary in 6LoWPAN setting before. We detect the attack using Wireshark analytics and identify the malicious node from responses to probe packets using a DES based state estimator which ensures correctness too. Our approach is tested on Contiki OS and experimental results show that the proposed scheme provides energy efficient solutions with lesser response times compared to the state of the art solutions.
6LoWPAN是IETF设计的适配层,用于使用IEEE 802.15.4网络的有损链路和低功耗资源受限设备上的IPv6连接。最近,物联网(IoT)设备在工业网络物理系统(CPS)和家庭自动化等领域的日益兴起,已经动员了6LoWPAN的广泛实施。然而,由于身份验证机制的缺失,使得适应层容易受到由重复或伪造的片段引起的各种攻击。缓冲区保留攻击的目标是由于虚构的黄油分配导致的漏洞,然后拒绝新的数据包占用直到超时。现有的缓解此类攻击的研究工作采用加密解决方案和分割黄油的方法来智能地保证黄油的保留。本文提出了一种在有限状态机框架下使用离散事件系统(DES)的攻击者披露方案。我们的对策背后的动机是,以前没有工作解决了在6LoWPAN设置中识别对手的问题。我们使用Wireshark分析来检测攻击,并使用基于DES的状态估计器从响应到探测数据包中识别恶意节点,这也确保了正确性。我们的方法在Contiki OS上进行了测试,实验结果表明,与最先进的解决方案相比,所提出的方案提供了更少响应时间的节能解决方案。
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引用次数: 3
期刊
2020 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
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