{"title":"Validation of low-accuracy quantization in massive MIMO and constellation EVM analysis","authors":"C. Desset, L. Perre","doi":"10.1109/EuCNC.2015.7194033","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194033","url":null,"abstract":"Massive MIMO is a promising approach in order to increase the data rate of cellular systems while reducing their power consumption. While the concept is elegant, many potential show-stoppers have to be investigated, in order to make sure that the idea keeps its promises. On such element is the claim that massive MIMO systems can operate with very low digital signal processing accuracy, and hence reduced implementation complexity and power consumption. In this paper, we investigate the impact of digital quantization of massive MIMO at low resolution. Simulations show that the system can operate correctly with as few as 2 or 3 bits of digital resolution at the end of the digital chain, while limiting the degradation to 1 dB in required signal-to-noise ratio.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130552443","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}
{"title":"Iterative power control to mitigate the interference between D2D and CDMA uplink services","authors":"Hyung-sub Kim, J. Na, Dae-Ik Kim","doi":"10.1109/EuCNC.2015.7194079","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194079","url":null,"abstract":"To cope with data communication explosion, the alternative, “D2D communication” which enables mobile devices to communicate each other without base station is studied. Even though D2D communication has a lot of benefits (infra-less communication providing service at a lower cost and etc), the interference induced by D2D links is inevitable problem where D2D and cellular links share same radio channels. On the assumption that the D2D link uses the same uplink cellular channel in a CDMA system, this paper proposes a heuristic and iterative power control algorithm which approaches to the optimal solution maximizing the total uplink cellular throughput.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124382642","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}
Anna Guerra, Francesco Guidi, A. Clemente, R. D’Errico, L. Dussopt, D. Dardari
{"title":"Application of transmitarray antennas for indoor mapping at millimeter-waves","authors":"Anna Guerra, Francesco Guidi, A. Clemente, R. D’Errico, L. Dussopt, D. Dardari","doi":"10.1109/EuCNC.2015.7194044","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194044","url":null,"abstract":"Millimeter-waves are expected to play a key role in next 5G scenario due to the availability of a large clean unlicensed bandwidth at 60 GHz and the possibility to realize packed antenna arrays, with a consequent increase of the communication capacity and the introduction of new functionalities, such as high-definition localization and personal radar for automatic environment mapping. In this paper we propose the adoption of millimeter-wave transmitarrays for personal radar applications and we investigate the impact of the radiation pattern characteristics on the map reconstruction accuracy, by analysing how the number of array elements, of quantization bits and the focal distance affect the environment reconstruction performance.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218899","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}
{"title":"H-fading: Towards H-transform theory for wireless communication","authors":"Youngmin Jeong, Hyundong Shin, M. Win","doi":"10.1109/EuCNC.2015.7194034","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194034","url":null,"abstract":"In this paper, we put forth H-fading and degree-2 irregular H-fading to model radio propagation under composite, specular, and/or inhomogeneous conditions. The H-fading describes composite effects of multipath fading and shadowing as a single H-variate, including most of typical models such as Rayleigh, Nakagami-m, Weibull, α-μ, N*Nakagami-m, (generalized) K-fading, and Weibull/gamma fading as its special cases. As a new class of H-variates (called the degree-ζ irregular H-variate), the degree-2 irregular H-fading characterizes specular and/or inhomogeneous radio propagation in which the multipath component consists of a strong specularly-reflected or line-of-sight (LOS) wave as well as unequal-power or correlated in-phase and quadrature scattered waves, including again a variety of typical models such as Rician, Nakagami-q, κ-μ, η-μ, Rician/LOS gamma, and κ-μ/LOS gamma fading as its special cases.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"81 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131521096","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}
{"title":"Sub-optimal initialization for blind equalization with fast convergence in OFDM/OQAM modulation","authors":"V. Savaux, F. Bader","doi":"10.1109/EuCNC.2015.7194029","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194029","url":null,"abstract":"This paper deals with blind equalization in orthogonal frequency division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) systems. Blind equalization is an interesting solution with regard to the spectral efficiency since no pilot is used for the signal recovering, but blind iterative algorithms suffer from a large convergence speed toward the steady-state. An initialization strategy using features of the OFDM/OQAM modulation scheme is proposed in order to improve the convergence speed of the blind equalizer. It is shown that no optimal solution can be found in the complex field, but a sub-optimal initialization value can be derived in the real subset. Simulations results show that a gain of thousands of iterations is achieved by the proposed initialization method compared with the technique that consists of setting the same initialized value for all subcarriers.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114488796","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}
Ta Duc-Tuyen, Nhan Nguyen-Thanh, P. Ciblat, Van-Tam Nguyen
{"title":"Extra-sensing game for malicious primary user emulator attack in cognitive radio network","authors":"Ta Duc-Tuyen, Nhan Nguyen-Thanh, P. Ciblat, Van-Tam Nguyen","doi":"10.1109/EuCNC.2015.7194088","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194088","url":null,"abstract":"Primary User Emulation (PUE) attack is a serious security problem in cognitive radio (CR) network. A PUE attacker emulates a primary signal during sensing duration in order the CR users not to use the spectrum. The PUE attacker is either selfish if it would like to take benefit of the spectrum, or malicious if it would like to do a Deny of Service of the CR network. In this paper, we only consider malicious PUE. We propose to perform sometimes an additional sensing step, called extra-sensing, in order to have a new opportunity to sense the channel and so to use it. Obviously the malicious PUE may still perform an attack during this extra-sensing. Therefore, our problem can be formulated as a zero-sum game to modeling and analyzing the strategies for two players. The equilibrium is expressed in closed-form. The results show that the benefit ratio and the probability of channel's availability strongly influence the equilibrium. Numerical results confirm our claims.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121600218","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}
M. Shariat, M. Dianati, K. Seppänen, T. Suihko, J. Putkonen, V. Frascolla
{"title":"Enabling wireless backhauling for next generation mmWave networks","authors":"M. Shariat, M. Dianati, K. Seppänen, T. Suihko, J. Putkonen, V. Frascolla","doi":"10.1109/EuCNC.2015.7194061","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194061","url":null,"abstract":"This paper presents some key findings w.r.t. the Radio Resource Management (RRM) in wireless Backhaul (BH) of mmWave networks. First, the envisioned design of mmWave backhaul architecture is outlined highlighting the most important newly needed functional blocks and in what they differ from a non-mmWave architectures. Next, the challenges and functionality of RRM techniques are discussed, focusing on Routing and Link scheduling algorithms in such BH architecture. Furthermore different possible interactions between RRM functions are explored. Finally, preliminary analytical and experimental study on the performance of different link scheduling and routing functions for mmWave backhauling are provided, highlighting in particular the impact of traffic load and dynamic route selection on BH End to End delay.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116781288","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}
Luis Díez, L. R. D. Lope, Ramón Agüero, Y. Corre, J. Stephan, M. Brau, S. Aerts, G. Vermeeren, L. Martens, W. Joseph
{"title":"Optimal dosimeter deployment into a smart city IoT platform for wideband EMF exposure assessment","authors":"Luis Díez, L. R. D. Lope, Ramón Agüero, Y. Corre, J. Stephan, M. Brau, S. Aerts, G. Vermeeren, L. Martens, W. Joseph","doi":"10.1109/EuCNC.2015.7194131","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194131","url":null,"abstract":"LEXNET project, funded by the European Commission, is introducing new concepts for the assessment of the population EMF exposure. It also aims at evaluating the capability of future technologies to reduce this EMF exposure. The platform presented in this paper is an original tool for a continuous measurement of the multi-band downlink Electric Field strength at a scale of a city, relying on the SmartSantander sensor network that was developed in a previous project. The testbed integrates a new equipment to capture the E-field strength, i.e. connected dosimeters. The work that is reported here focuses on the deployment of those dosimeters in the city of Santander. The presented methodology uses both simulation and measurement to achieve an optimal design, i.e. a dosimeter deployment that provides relevant exposure statistics and allows for the creation of exposure maps. Results on the pre-deployment simulations are given in this document, while the complete design optimization will be demonstrated later in Year 2015.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116880008","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}
D. Stavropoulos, Giannis Kazdaridis, N. Makris, H. Niavis, Ioannis Igoumenos, T. Korakis, L. Tassiulas
{"title":"Enabling experimentation in mobile sensing scenarios through 4G networks: The NITOS approach","authors":"D. Stavropoulos, Giannis Kazdaridis, N. Makris, H. Niavis, Ioannis Igoumenos, T. Korakis, L. Tassiulas","doi":"10.1109/EuCNC.2015.7194126","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194126","url":null,"abstract":"Wireless technologies have evolved rapidly over the past years, directly affecting our everyday living with the wide penetration of smart mobile devices. As such, the research community has placed major efforts in shaping and forming the future wireless technologies for enhanced end-user experience. Nevertheless, protocols and algorithms over wireless networks are better evaluated in real world scenarios, where simulations and complex theoretical models fail to characterize and emulate their behavior. Networking experimental facilities (testbeds) fill this gap by allowing experimental network measurements to serve as a basis for extracting valuable findings. In this paper, we present the extensions to the NITOS testbed for supporting experimentation in mobile sensing scenarios, by employing smartphones in vehicular environments, communicating using WiFi and 4G networks. We emphasize on the ease of configuration, execution and reproducibility of these experiments, leveraging the hardware and software tools provided by the NITOS testbed.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117246576","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}
{"title":"Study on impact of Vertical Sectorization on mobility and existing MRO performance","authors":"D. Kifle, B. Wegmann, I. Viering, A. Klein","doi":"10.1109/EuCNC.2015.7194053","DOIUrl":"https://doi.org/10.1109/EuCNC.2015.7194053","url":null,"abstract":"Mobility robustness optimization (MRO) is one of the Self Organizing Network (SON) features that automatically adjusts network mobility configurations by detecting problems and correcting handover (HO) parameters. The existing MRO operation is based on stationary network deployment assumption where handover error statistics are continuously monitored between cell-pair borders as long as the cells shape and neighbor relationships are maintained. In the dynamic deployment case, where cell deployment layout is changing by following the nature of the traffic distribution, existing neighbor relationships might not be maintained and new neighbors could appear in the network. In such cases, MRO instances and counters used before deployment change might not be valid any longer for the new network layout. In this paper work, we have studied the impact of deployment and network layout change introduced by Vertical Sectorization (VS), a typical Active Antenna Systems (AAS) feature, on the performance of MRO. A crucial aspect here is the treatment of MRO statistics while introducing a change in the network deployment layout. The study gives information if there is a need to enhance the existing MRO concepts by introducing inter-node coordination during execution of a deployment change in the network.","PeriodicalId":310313,"journal":{"name":"2015 European Conference on Networks and Communications (EuCNC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126375471","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}