2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)最新文献

Interferer-Robust Compressed Sensing Receiver Based on Mixer Harmonics 基于混频器谐波的抗干扰压缩感知接收机

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935706

W. Namgoong, M. Torlak

{"title":"Interferer-Robust Compressed Sensing Receiver Based on Mixer Harmonics","authors":"W. Namgoong, M. Torlak","doi":"10.1109/DySPAN.2019.8935706","DOIUrl":"https://doi.org/10.1109/DySPAN.2019.8935706","url":null,"abstract":"The underlying assumption in much of the existing work on cognitive radios (CRs) has been the availability of a high-performance CR receiver. Designing an efficient wideband radio that can sense over a broad spectrum is challenging, especially since high-levels of integration and low power are essential for CR systems operating in battery-powered mobile systems. Recently, sensing strategies based on compressed sensing (CS) have been proposed to reduce the sensing time at minimal hardware overhead. Existing CS receivers, however, assume that the signal energy outside the frequency range of interest is negligible. In a real system, unfortunately, this is not an accurate assumption. Because of the difficulty of designing a wideband and high-order filter, the out-of-band interferers remain largely unattenuated, especially those near the edge of the frequency band of interest. The problem with existing CS receivers is that they are sensitive to these out-of-band interferers, which fold in-band and result in significant performance degradation. This paper presents a CS receiver that is more robust to out-of-band interferers, which are inevitably present in realistic operating scenarios. In the proposed receiver, a cascade of multi-phase clocks exploit the harmonics of modern hard-switching commutating mixers to fold the wideband signal to baseband. The proposed receiver is shown to be similar to existing multi-coset receiver but without the folding of the out-of-band interferers. A possible circuit realization of the mixer block is presented, and the effects of circuit non-idealities have been quantified. The proposed receiver outperforms existing CS receiver even in the absence of out-of-band interferers, because unlike existing receivers, it does not fold the out-of-band noise floor to in-band. In the presence of out-of-band interferers, existing CS receivers cease to function while the proposed receiver remains largely unaffected.","PeriodicalId":278172,"journal":{"name":"2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

[Copyright notice] (版权)

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/dyspan.2019.8935818

引用次数: 0

Dynamic and Collaborative Spectrum Sharing: The SCATTER Approach 动态和协作频谱共享:散射方法

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935774

S. Giannoulis, M. Mehari, A. Shahid, Dragoslav Stojadinovic, Maxim Claeys, Farouk Mahfoudhi, Wei Liu, I. Seskar, Steven Latré, I. Moerman, Carlos Donato, R. Mennes, F. A. P. Figueiredo, Irfan Jabandžić, Yorick De Bock, M. Camelo, Jakob Struye, Prasanthi Maddala

引用次数: 15

FaIR: Federated Incumbent Detection in CBRS Band 公平:CBRS波段的联邦在位者检测

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935736

Matthew Troglia, Jordan L. Melcher, Yao Zheng, Dylan Anthony, Alvin Yang, Thomas Yang

{"title":"FaIR: Federated Incumbent Detection in CBRS Band","authors":"Matthew Troglia, Jordan L. Melcher, Yao Zheng, Dylan Anthony, Alvin Yang, Thomas Yang","doi":"10.1109/DySPAN.2019.8935736","DOIUrl":"https://doi.org/10.1109/DySPAN.2019.8935736","url":null,"abstract":"The next-generation spectrum access system (SAS) for the Citizens Broadband Radio Service band is equipped with environmental sensors (ESCs) to detect the presence of non-informed incumbent users, which allows the SAS to dynamically reassign spectrum resource for low privilege users to avoid interference. However, the performance of existing single-node detection model is limited by the sensor’s geo-locations; whereas a naive distributed sensing network with improved detection accuracy introduces a high bandwidth overhead due to the frequent communication of spectrum data. In addition, many existing coherent spectrum sensing methods are not feasible for CBRS band due to the unknown operational characteristics of incumbent military wireless applications. To address these issues, we propose a machine learning based non-coherent spectrum sensing system: (F)eder(a)ted (I)ncumbent Detection in CB(R)S (FaIR). FaIR leverages a communication-efficient distributed learning framework, federated learning, for ESCs to collaborate and train a data-driven machine learning model for incumbent detection under minimal communication bandwidth. Our preliminary results show that the federated learning method can exploit the spatial diversity of ESCs and obtain an improved detection model comparing to a naive distributed sensing and centralized model framework. We evaluate the FaIR model with a variety of spectrum waveforms at varying SNRs. Our experiments showed that FaIR improves the average detection accuracy compared to the single-node method, using a fraction of the bandwidth compared to the naive multi-node method.","PeriodicalId":278172,"journal":{"name":"2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131087470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Shared Spectrum Allocation via Pathloss Estimation in Crowdsensed Shared Spectrum Systems 基于路径损失估计的众感共享频谱分配

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935638

Himanshu Gupta, Md. Shaifur Rahman, Max Curran

{"title":"Shared Spectrum Allocation via Pathloss Estimation in Crowdsensed Shared Spectrum Systems","authors":"Himanshu Gupta, Md. Shaifur Rahman, Max Curran","doi":"10.1109/DySPAN.2019.8935638","DOIUrl":"https://doi.org/10.1109/DySPAN.2019.8935638","url":null,"abstract":"The RF spectrum is a natural resource in great demand. The research community has addressed this unabated increase in demand via development of shared spectrum paradigms, wherein the spectrum is made available to unlicensed users (secondaries) as long as they do not interfere with the transmission of licensed incumbents (primaries). In this paradigm, typically a centralized entity (spectrum manager) is responsible for allocation of spectrum bands to a requesting SU, based on known parameters of the primaries and channel state. Optimal power allocation is important for efficient management of spectrum.In this work, we consider a crowdsourced architecture of the shared spectrum paradigm, wherein the spectrum is monitored by a large number of inexpensive spectrum sensors deployed in the area of interest. In this context, we propose a spectrum allocation algorithm that is based on estimation of path loss from the sensing reports of these spectrum sensors. Such an architecture obviates the need to assume a propagation model, but requires design of accurate estimation techniques. We consider various possible estimation schemes involving splitting of aggregate power received at each sensor and multiple interpolation schemes. We evaluate the performance of our proposed schemes with respect to the optimal allocation, and observe that allocation using the best of our methods is close to the optimal.","PeriodicalId":278172,"journal":{"name":"2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132837637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Wind Sensing by Millimeter Wave Communications 毫米波通信的风感应

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935795

Zhiyang Zhang, Jingchao Bao, Yawen Fan, Husheng Li

引用次数: 0

Effect of LBT Time on LoRa Network Performance: Signal Detection Theorem Based Analyses LBT时间对LoRa网络性能的影响:基于信号检测定理的分析

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935847

S. Narieda, T. Fujii, K. Umebayashi

引用次数: 1

Nationwide Spectrum Sharing of Mobile Network Operators with Indoor Small Cells 室内小基站移动网络运营商的全国频谱共享

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935745

Rony Kumer Saha

引用次数: 5

Deep Learning-Enabled Real-Time Recognition of Wireless Signals 基于深度学习的无线信号实时识别

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935820

Christopher Gravelle, Todd Morehouse, Ruolin Zhou

引用次数: 6

Spot Markets for Spectrum Measurements 频谱测量现货市场

2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) Pub Date : 2019-11-01 DOI: 10.1109/DySPAN.2019.8935666

A. Ghosh, R. Berry

引用次数: 1