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2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)最新文献

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A Business Model for Place Time Capacity based Resource Allocation in an Aerial Radio Architecture 空中无线电体系结构中基于地方时容量的资源分配业务模型
Purnima Lala Mehta, Ambuj Kumar
Aerial Radio Architecture (ARA) is a relatively new concept with a composite framework consisting of both airborne platforms and ground platforms. Recently, an innovative Self Itinerant Intelligent Aerial Radio Architecture (SIIARA) was proposed that carry the capability to mitigate a unique and ever-nagging problem of any Wireless Communication Network (WCN) that has been defined as the Place Time Capacity (PTC problem). A technology is viable only if it serves any social needs, which can be measured in terms of ‘values’ it offers to the society. However, every value has some cost associated with it, and therefore, to be able to exercise in an ecosystem thoroughly, a technology must have an explicit business model which maps values with a cost (or profit). As ARA is a still at the research stage, not much of its business aspects have been surfaced so far. In this paper, we devise and discuss an accommodative and dynamic business model framework for SIIARA, with competence to relate its values and costs with a pragmatic formulation for future consideration. This paper also discusses the need and considerations of such a BM framework.
空中无线电架构(ARA)是一个相对较新的概念,它是由机载平台和地面平台组成的复合框架。最近,一种创新的自流动智能空中无线电架构(SIIARA)被提出,该架构具有减轻任何无线通信网络(WCN)所存在的一个独特且一直困扰的问题的能力,该问题被定义为地点时间容量(PTC)问题。一项技术只有在满足任何社会需求的情况下才是可行的,这种需求可以用它为社会提供的“价值”来衡量。然而,每个价值都有一些与之相关的成本,因此,为了能够在生态系统中彻底地发挥作用,一项技术必须有一个明确的商业模型,该模型将价值与成本(或利润)相映射。由于ARA仍处于研究阶段,到目前为止,它的业务方面还没有多少浮出水面。在本文中,我们为SIIARA设计并讨论了一个适应性和动态的业务模型框架,该框架具有将其价值和成本与未来考虑的实用公式联系起来的能力。本文还讨论了这种BM框架的必要性和考虑因素。
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引用次数: 1
QoS-Constrained Sum-Harvested Energy Maximization in OFDMA-based Wireless Cooperative Networks 基于qos约束的ofdma无线合作网络能量和收获最大化
S. Gautam, E. Lagunas, Satyanarayana Vuppala, S. Chatzinotas, B. Ottersten
We investigate the performances of the time-switching (TS) and power-splitting (PS) based energy harvesting models in a two-hop relay assisted network where the end-users are capable of decoding information and harvesting energy concurrently. In particular, we consider joint resource allocation and relay selection to realize Simultaneous Wireless Transmission of Information and Energy (Wi-TIE) in a multi-carrier multi-user cooperative system where the relays employ the amplify-and-forward (AF) protocol. First, we formulate based on the TS and PS Wi-TIE architectures an optimization problem to maximize the sum of energy harvested at the end-users, taking into consideration each user’s quality-of-service (QoS) requirement as well as power constraints at the transmit and relaying nodes. We then solve the formulated problem to optimize the users’ Wi-TIE splitting factors along with relay-user coupling, subcarrier-user assignment, sub-carrier pairing, and power allocation. Finally, we demonstrate the benefits of the proposed framework via numerical results.
在终端用户能够同时进行信息解码和能量收集的两跳中继辅助网络中,研究了基于时间交换(TS)和功率分割(PS)的能量收集模型的性能。特别地,我们考虑联合资源分配和中继选择,在中继采用放大转发(AF)协议的多载波多用户合作系统中实现信息和能量的同时无线传输(Wi-TIE)。首先,考虑到每个用户的服务质量(QoS)要求以及传输和中继节点的功率约束,我们制定了基于TS和PS Wi-TIE架构的优化问题,以最大化最终用户的能量收集总和。然后,我们求解公式问题,以优化用户的Wi-TIE分裂因子以及中继-用户耦合,子载波-用户分配,子载波配对和功率分配。最后,我们通过数值结果证明了所提出框架的优点。
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引用次数: 0
ANTS 2018 Committees 蚂蚁2018委员会
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引用次数: 0
Block Synchronization for Diffusion-based Molecular Communication Systems 基于扩散的分子通信系统的块同步
M. Mukherjee, Huseyin Birkan Yilmaz, Bishanka Brata Bhowmik, Yunrong Lv
In this paper, we consider the block synchronization issue in molecular communications via diffusion (MCvD). To maintain an internal clock with a fixed clock offset in both transmitter and receiver requires additional energy in nanosensors that have limited power and chemical budget. Therefore, synchronization becomes a challenging issue to handle complex tasks in the nanonetworks. In MCvD systems, most of the transmitted molecules hit the receiver surface at the start of the symbol interval. Therefore, while detecting the start of the symbol duration, a small synchronization error results in a high symbol detection error. To address the issue, we suggest several synchronization frameworks for the MCvD systems that can be categorized into two main classes: per-symbol and per-block synchronization. Moreover, we investigate the impact of synchronization error on the symbol-error-rate (SER) performance.
本文研究了分子扩散通信(MCvD)中的块同步问题。为了在发射器和接收器中保持固定时钟偏移的内部时钟,需要纳米传感器提供额外的能量,而纳米传感器的功率和化学预算有限。因此,同步成为纳米网络中处理复杂任务的一个具有挑战性的问题。在MCvD系统中,大多数发射分子在符号间隔开始时击中接收器表面。因此,在检测符号持续时间开始时,较小的同步误差会导致较高的符号检测误差。为了解决这个问题,我们提出了几种用于MCvD系统的同步框架,它们可以分为两大类:按符号和按块同步。此外,我们还研究了同步误差对符号误码率(SER)性能的影响。
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引用次数: 5
On the Spectral Content of Nonlinear Carrier Aggregated Windowed OFDM Systems 非线性载波聚合加窗OFDM系统的频谱含量研究
Mohd Hamza Naim Shaikh, A. Agarwal, Parag Aggarwal, V. Bohara
Orthogonal frequency division multiplexing (OFDM) and its variants have become the most favorable multi-carrier modulation scheme in various wireless communications standards, such as long-term evolution (LTE), LTE-Advanced, 5G New Radio (5G). They are also bound to play a crucial role in shaping the standards of next-generation cellular networks. However, the slow spectral sidelobe decay rate of OFDM makes it vulnerable to larger out-of-band (OOB) emission, especially in the presence of nonlinear high power amplifiers (HPA). Various methods have been proposed to eliminate this shortcoming and reduce the OOB emission of the OFDM signals. However, these schemes are only analyzed assuming HPA to be linear. In this paper, we studied the nonlinearity effect due HPA on the spectral content of carrier aggregated (CA) windowed OFDM signal. Specifically, we show that windowing lowers the noise floor substantially, however, due to the nonlinearity of HPA, the effect of windowing on the OOB emission is negligible. As a consequence, the nonlinear characteristics of HPA should be taken into account while evaluating the performance of windowing for a CA as well as non-aggregated OFDM signals. Simulation results have been presented for both dual as well as single band CA Windowed OFDM signal along with nonlinear HPA.
正交频分复用(OFDM)及其变体已成为长期演进(LTE)、LTE- advanced、5G新无线电(5G)等各种无线通信标准中最有利的多载波调制方案。它们也必将在塑造下一代蜂窝网络标准方面发挥关键作用。然而,OFDM的频谱旁瓣衰减速度慢,使得它容易受到较大的带外辐射的影响,特别是在非线性高功率放大器(HPA)的存在下。人们提出了各种方法来消除这一缺点,减少OFDM信号的OOB发射。然而,这些方案仅在假设HPA是线性的情况下进行分析。本文研究了HPA对载波聚合(CA)加窗OFDM信号频谱含量的非线性影响。具体来说,我们发现加窗大大降低了本底噪声,然而,由于HPA的非线性,加窗对OOB发射的影响可以忽略不计。因此,在评估CA和非聚合OFDM信号的加窗性能时,应考虑HPA的非线性特性。本文给出了双波段加窗OFDM信号和单波段加窗OFDM信号非线性HPA的仿真结果。
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引用次数: 2
Sharing of Existing Optical Distribution Network of PON with Mobile Backhaul Network for 5G… an Analysis 现有PON配光网络与5G移动回程网络的共享分析
Aanchal Khandelwal, A. Srivastava
This paper provides theoretical analysis of existing optical distribution network (ODN) that integrates mobile backhaul network with already existing passive optical network (PON). The need to reduce the cost of laying down new fibres for mobile backhaul networks drives the need for such an integrated architecture that allows sharing of ODN. In this paper, analysis has been done for the two arms of architecture, i.e. the mobile backhaul system and passive optical network arm. A wavelength division multiplexing (WDM) combiner is used to stream data from the two arms of the architecture. The PON ODN is considered to have 10 Gbps data rate downstream and 2.5 Gbps rate upstream and a bit error rate (BER) less than $10^{-9}$. The power budget analysis is used in both arms to determine the maximum reach possible. Rise time analysis in PON arm makes sure that the rise time stays within limits for DS and US. Delay analysis for mobile backhaul is done to make sure that the end to end delay in mobile backhaul is not more than 1 ms so as to meet 5G specifications. The analysis shows that a distance of 20 km is possible for carrying 5G mobile backhaul traffic in the existing ODN.
本文对现有的将移动回程网络与已有的无源光网络(PON)相结合的光分配网络(ODN)进行了理论分析。为了降低为移动回程网络铺设新光纤的成本,需要这样一种允许共享ODN的集成架构。本文分析了移动回程系统和无源光网络两种体系结构。波分复用(WDM)合并器用于从架构的两个臂传输数据。PON ODN的下行速率为10gbps,上行速率为2.5 Gbps,误码率(BER)小于10^{-9}$。功率预算分析用于双臂,以确定最大可能的到达。PON臂的上升时间分析确保上升时间在DS和US的限制范围内。对移动回程进行延迟分析,确保移动回程端到端延迟不大于1ms,以满足5G规范。分析结果表明,在现有的ODN中,5G移动回程业务的传输距离可以达到20公里。
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引用次数: 1
Combating Resource Crunch in an Optical Network: Demand-Responsive Dynamic OSNR Margin Allocation 对抗光网络资源紧张:需求响应动态OSNR余量分配
R. B. Lourenço, M. Tornatore, B. Mukherjee
Several network operators run their networks at high average utilization. At high utilization, it is more likely that Resource Crunch will occur due to there not being enough capacity to serve all offered traffic. One solution is to increase the capacity of the underlying optical network by using higher modulation formats (which provide higher throughput) through transponders capable of dynamically adjusting modulations. This is possible since operators traditionally use large Optical Signal-to-Noise Ratio (OSNR) margins (i.e., the difference between the minimum OSNR for a certain modulation and the observed OSNR). Using modulation formats with higher spectral efficiency (i.e., increasing modulation) decreases OSNR margins. When OSNR margins are small, OSNR fluctuations may trigger the transponder to use more robust, lower modulations. If these changes are frequent, Quality of Service may suffer. To reduce the number of modulation changes, we propose a Machine Learning model to forecast OSNR. When Resource Crunch starts, we choose what modulations to use in each lightpath (according to the forecast); and, when it is over, we revert to large margins, in a demand-responsive manner. Our results show that, during Resource Crunch, our method carries a larger load when compared to a scenario where conservative OSNR margins are used, while incurring significantly fewer modulation changes than a system that always uses the tightest OSNR margin possible.
一些网络运营商以高平均利用率运行他们的网络。在高利用率的情况下,由于没有足够的容量来服务所有提供的流量,更有可能发生资源紧缩。一种解决方案是通过能够动态调整调制的转发器使用更高的调制格式(提供更高的吞吐量)来增加底层光网络的容量。这是可能的,因为运营商传统上使用较大的光信噪比(OSNR)余量(即某种调制的最小OSNR与观测到的OSNR之间的差值)。使用具有更高频谱效率的调制格式(即增加调制)会降低OSNR余量。当OSNR边际较小时,OSNR波动可能会触发应答器使用更稳健、更低的调制。如果这些变化频繁,服务质量可能会受到影响。为了减少调制变化的数量,我们提出了一个机器学习模型来预测OSNR。当资源紧缩开始时,我们选择在每个光路中使用什么调制(根据预测);当这一阶段结束后,我们将以需求响应的方式恢复到高利润率。我们的结果表明,在资源紧缩期间,与使用保守OSNR裕度的情况相比,我们的方法承载了更大的负载,而与始终使用最严格的OSNR裕度的系统相比,产生的调制变化要少得多。
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引用次数: 0
Investigation of an Enhanced Efficiency Class-E Power Amplifier with Input Wave Shaping Network 带输入整形网络的增效e类功率放大器的研究
M. Hashmi, Kassen Dautov, Rahul Gupta
In this paper, investigation result of a Class-E power amplifier (PA), using a GaN HEMT, operating at 2 GHz frequency with 10W output power and better than 82% power added efficiency (PAE) is reported. The improvement in the efficiency of the PA has been achieved by the incorporation of an appropriate input matching network topology. This matching network transforms the impedance from source to the desired impedance for conjugate match in addition to suppressing the second harmonic component of the signal from reaching the gate of the GaN HEMT. In essence, the suppression of the second harmonic enables fundamental frequency signal and third harmonic signal to combine at the gate terminal. It leads to sharper rising/falling of signal for faster switching of the device and hence higher power efficiency.
本文报道了一种使用GaN HEMT的e类功率放大器(PA),工作频率为2ghz,输出功率为10W,功率附加效率(PAE)优于82%的研究结果。通过引入适当的输入匹配网络拓扑,提高了PA的效率。除了抑制信号的二次谐波分量到达GaN HEMT栅极外,该匹配网络还将源阻抗转换为所需的共轭匹配阻抗。实质上,二次谐波的抑制使基频信号和三次谐波信号在闸端结合。它导致信号的急剧上升/下降,以实现更快的器件切换,从而提高功率效率。
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引用次数: 0
RDDF: Rating Driven Data Forwarding in Vehicular Network RDDF:车用网络中评级驱动的数据转发
Rohan, Jayashree Phukan, Suchetana Chakraborty
Sensory data forwarding from on-road smart vehicles to the road side units is challenging mainly due to the highly dynamic nature of the vehicular network. Road safety and traffic related applications demand reliable and fast delivery of these data packets from vehicles to the nearest RSU. We propose a novel forwarding strategy based on vehicle rating that ensures the selected next-hop forwarder would deliver the data packets with high throughput and low delay with consistency. From theoretical analysis we found that the performance can further be enhanced by dynamically tuning the parameters of vehicle rating. Extensive simulation proved significant performance benefits (up to 1.5 times better delivery ratio and 55% less delay in the best case scenario) for the proposed RDDF protocol than that of the best among existing schemes. Most importantly, unlike others, it does not require any prior topology information for taking the routing decision.
由于车辆网络的高度动态性,将传感器数据从道路智能车辆转发到道路侧单元具有挑战性。道路安全和交通相关应用要求这些数据包从车辆可靠、快速地传输到最近的RSU。我们提出了一种基于车辆等级的转发策略,以确保所选择的下一跳转发器能够以高吞吐量和低延迟的一致性传输数据包。理论分析表明,通过动态调整车辆等级参数可以进一步提高系统的性能。广泛的仿真证明,与现有方案中的最佳方案相比,拟议的RDDF协议具有显著的性能优势(在最佳情况下,交付率提高1.5倍,延迟减少55%)。最重要的是,与其他方法不同,它不需要任何预先的拓扑信息来进行路由决策。
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引用次数: 1
Self-powered IoT Device based on Energy Harvesting for Remote Applications 基于远程应用能量收集的自供电物联网设备
Rolf Arne Kjellby, Linga Reddy Cenkeramaddi, Thor Eirik Johnsrud, Svein Erik Løtveit, Geir Jevne, B. Beferull-Lozano, J. Soumya
In this paper, we present the design and prototype implementation of self-powered Internet of Things (IoT) device based on energy harvesting from a small solar panel of size 63mm x 63mm and 0.36W for remote applications. These IoT devices can be deployed in remote places within the range of a gateway. A complete proof of concept IoT device based on ambient energy harvesting is designed, prototyped and tested with super capacitors and Lithium cells in star topology. Based on the measurements, the IoT device can potentially last for one year with 55 seconds transmission interval with the fully charged 120mAh coin cell battery. On the other hand, a fully charged single 5F supercapacitor lasts for 37 hours with the transmission interval of 55 seconds. The range of the node was measured to be 1.8 km with coded transmissions. The node is equipped with ultra-low power sensors for temperature, humidity and light levels, and several more sensors can easily be integrated.
在本文中,我们提出了一种基于能量收集的自供电物联网(IoT)设备的设计和原型实现,该设备的尺寸为63mm x 63mm,功率为0.36W,用于远程应用。这些物联网设备可以部署在网关范围内的远程地方。设计了一个基于环境能量收集的完整概念物联网设备,并使用超级电容器和星形拓扑中的锂电池进行了原型设计和测试。根据测量结果,物联网设备可以在充满电的120mAh硬币电池下持续使用一年,传输间隔为55秒。另一方面,单个5F超级电容器充满电的续航时间为37小时,传输间隔为55秒。经测量,该节点的编码传输距离为1.8公里。该节点配备了超低功耗的温度、湿度和光照传感器,并且可以轻松集成多个传感器。
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引用次数: 11
期刊
2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
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