Pub Date : 2017-07-17DOI: 10.1109/EuCNC.2017.7980739
Sara Gunnarsson, Micaela Bortas, Yanxiang Huang, Cheng-Ming Chen, L. Perre, O. Edfors
Massive MIMO (MaMIMO) is a key technology for 5G wireless communication, enabling large increase in both spectral and energy efficiency at the same time. Before it can be deployed, it is important to find efficient implementation strategies. Because of the many antennas, an essential part of decreasing complexity, and further improving energy efficiency, is optimization of the digital signal processing (DSP) in the per-antenna functions. Assuming an orthogonal frequency-division multiplexing (OFDM) based MaMIMO system, this paper explores coarse quantization in the per-antenna digital transmit filters and inverse fast Fourier transforms (IFFTs) and evaluates it in terms of performance and complexity savings. Results show that DSP complexity can be greatly reduced per-antenna, and therefore significant power savings can be achieved, with limited performance degradation. More specifically, when going towards MaMIMO and therefore increasing the number of antennas from 8 to 64, it is possible to reduce the complexity in each transmit filter by 55%. Also, when using 6 bits to represent the input signal and 6 bits for the filter coefficients, this results in an SNR degradation of less than 0.5 dB compared to floating-point performance. Consequently, we conclude that the overall system energy greatly benefits from lousy per-antenna processing.
Massive MIMO (MaMIMO)是5G无线通信的关键技术，可以同时大幅提高频谱和能源效率。在部署它之前，找到有效的实现策略是很重要的。由于天线众多，降低复杂性和进一步提高能源效率的一个重要部分是优化数字信号处理(DSP)的每天线功能。假设一个基于正交频分复用(OFDM)的MaMIMO系统，本文探讨了每天线数字发射滤波器和逆快速傅里叶变换(ifft)中的粗量化，并从性能和节省复杂性方面对其进行了评估。结果表明，DSP的复杂度可以大大降低每个天线，因此可以在有限的性能下降的情况下实现显著的功耗节省。更具体地说，当走向MaMIMO并因此将天线数量从8个增加到64个时，有可能将每个发射滤波器的复杂性降低55%。此外，当使用6位表示输入信号和6位表示滤波器系数时，与浮点性能相比，这会导致信噪比下降小于0.5 dB。因此，我们得出结论，整个系统的能量大大受益于糟糕的每天线处理。
{"title":"Lousy processing increases energy efficiency in massive MIMO systems","authors":"Sara Gunnarsson, Micaela Bortas, Yanxiang Huang, Cheng-Ming Chen, L. Perre, O. Edfors","doi":"10.1109/EuCNC.2017.7980739","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980739","url":null,"abstract":"Massive MIMO (MaMIMO) is a key technology for 5G wireless communication, enabling large increase in both spectral and energy efficiency at the same time. Before it can be deployed, it is important to find efficient implementation strategies. Because of the many antennas, an essential part of decreasing complexity, and further improving energy efficiency, is optimization of the digital signal processing (DSP) in the per-antenna functions. Assuming an orthogonal frequency-division multiplexing (OFDM) based MaMIMO system, this paper explores coarse quantization in the per-antenna digital transmit filters and inverse fast Fourier transforms (IFFTs) and evaluates it in terms of performance and complexity savings. Results show that DSP complexity can be greatly reduced per-antenna, and therefore significant power savings can be achieved, with limited performance degradation. More specifically, when going towards MaMIMO and therefore increasing the number of antennas from 8 to 64, it is possible to reduce the complexity in each transmit filter by 55%. Also, when using 6 bits to represent the input signal and 6 bits for the filter coefficients, this results in an SNR degradation of less than 0.5 dB compared to floating-point performance. Consequently, we conclude that the overall system energy greatly benefits from lousy per-antenna processing.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"43 1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77833645","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}
Pub Date : 2017-07-17DOI: 10.1109/EuCNC.2017.7980712
Vaia Kalokidou, T. Pelham, M. Beach, P. Legg, Andy Lunness
This paper presents a link performance study for mmWave systems at 60 GHz. The study is based on mmWave wireless modem measurements. The system performance is characterized by means of common metrics such as packet delivery rate, Signal to Noise Ratio (SNR) and throughput. The effect of spatial and polarisation diversity/multiplexing is explored, considering various modulation and coding schemes (MCS). Based on our findings, spatial diversity mostly impacts the quasi/non-Line-of-Sight (LoS) locations, whereas the gain from polarization diversity is more significant for horizontal polarized transmitters. Finally, results are compared to results from a channel measurements campaigns, performed at the University of Bristol at the same time, showing similar SNR trends, and thus empowering the validity of our results.
{"title":"Link performance evaluation for mm-Wave systems","authors":"Vaia Kalokidou, T. Pelham, M. Beach, P. Legg, Andy Lunness","doi":"10.1109/EuCNC.2017.7980712","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980712","url":null,"abstract":"This paper presents a link performance study for mmWave systems at 60 GHz. The study is based on mmWave wireless modem measurements. The system performance is characterized by means of common metrics such as packet delivery rate, Signal to Noise Ratio (SNR) and throughput. The effect of spatial and polarisation diversity/multiplexing is explored, considering various modulation and coding schemes (MCS). Based on our findings, spatial diversity mostly impacts the quasi/non-Line-of-Sight (LoS) locations, whereas the gain from polarization diversity is more significant for horizontal polarized transmitters. Finally, results are compared to results from a channel measurements campaigns, performed at the University of Bristol at the same time, showing similar SNR trends, and thus empowering the validity of our results.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"58 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85973702","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980710
Juha Erkkila, Marjut Koskela, J. Heikkilä, Tuomo Kupiainen, Marjo Heikkilä, Tero Kippola, Asko Nykänen, Risto Saukkonen
The objective of this paper is to compare uplink (UL) performance with different antenna technologies when receiving Non-Line of Sight (NLOS) signal in field tests. The antenna configurations in use were a passive antenna system and an active antenna system (AAS). The radiation pattern can be controlled horizontally by changing its azimuth angle and vertically by changing the tilt angle of the antenna. AAS includes a flexible configuration that consists of diversity beams and other features for beam controlling. The field trial benefitted 2-way and 4-way receive (RX) diversity in both antenna systems. The field trial environment consists of three macro-cellular Long Term Evolution (LTE) evolved Node B (eNB) operating in 2.1 GHz band. This trial environment has two AAS and one passive system in use for the measurements. The environment can encompass one macro cell and with vertical controlling, it is possible to add an additional beam and with horizontal controlling it is possible to steer the main beam towards the user equipment (UE). Field trial used drive test software to evaluate the test network performance. Mobile network user had UE in drive testing to evaluate cellular network quality from the mobile device's point of view. The field trial results indicate that AAS beam controlling can achieve remarkable capacity gain in uplink direction when UE does not have a line of sight to the eNB.
本文的目的是在现场测试中比较不同天线技术在接收非瞄准线(NLOS)信号时的上行链路(UL)性能。使用的天线配置是无源天线系统和有源天线系统(AAS)。水平方向图可以通过改变其方位角来控制，垂直方向图可以通过改变天线的倾斜角来控制。AAS包括一个灵活的配置，包括分集波束和其他波束控制功能。现场试验受益于两种天线系统的2路和4路接收(RX)分集。现场试验环境由三个运行在2.1 GHz频段的LTE演进节点B (eNB)组成。这个试验环境有两个原子吸收系统和一个被动系统用于测量。环境可以包含一个宏单元，通过垂直控制，可以添加额外的波束，通过水平控制，可以将主波束转向用户设备(UE)。现场试验采用驱动测试软件对测试网络性能进行评估。移动网络用户进行UE in drive测试，从移动设备的角度评价蜂窝网络质量。现场试验结果表明，当终端与无线基站没有视线时，AAS波束控制在上行方向上可以获得显著的容量增益。
{"title":"Antenna configuration comparison in challenging NLOS locations","authors":"Juha Erkkila, Marjut Koskela, J. Heikkilä, Tuomo Kupiainen, Marjo Heikkilä, Tero Kippola, Asko Nykänen, Risto Saukkonen","doi":"10.1109/EuCNC.2017.7980710","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980710","url":null,"abstract":"The objective of this paper is to compare uplink (UL) performance with different antenna technologies when receiving Non-Line of Sight (NLOS) signal in field tests. The antenna configurations in use were a passive antenna system and an active antenna system (AAS). The radiation pattern can be controlled horizontally by changing its azimuth angle and vertically by changing the tilt angle of the antenna. AAS includes a flexible configuration that consists of diversity beams and other features for beam controlling. The field trial benefitted 2-way and 4-way receive (RX) diversity in both antenna systems. The field trial environment consists of three macro-cellular Long Term Evolution (LTE) evolved Node B (eNB) operating in 2.1 GHz band. This trial environment has two AAS and one passive system in use for the measurements. The environment can encompass one macro cell and with vertical controlling, it is possible to add an additional beam and with horizontal controlling it is possible to steer the main beam towards the user equipment (UE). Field trial used drive test software to evaluate the test network performance. Mobile network user had UE in drive testing to evaluate cellular network quality from the mobile device's point of view. The field trial results indicate that AAS beam controlling can achieve remarkable capacity gain in uplink direction when UE does not have a line of sight to the eNB.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"179 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77004415","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980645
M. Dohler, Toktam Mahmoodi, M. Lema, M. Condoluci, Fragkiskos Sardis, Konstantinos Antonakoglou, H. Aghvami
Capitalizing on the latest developments in 5G and ultra-low delay networking as well as Artificial Intelligence (AI) and robotics, we advocate here for the emergence of an entirely novel Internet which will enable the delivery of skills in digital form. We outline the technical challenges which need to be overcome to enable such a vision, i.e., on the development of a 5G Tactile Internet, standardized haptic codecs, and AI to enable the perception of zero delay networks. The paper is concluded with an overview on the current capabilities, and the standardization initiatives in the IEEE 5G Tactile Internet standards working group as well as the IEEE 5G Initiative.
{"title":"Internet of skills, where robotics meets AI, 5G and the Tactile Internet","authors":"M. Dohler, Toktam Mahmoodi, M. Lema, M. Condoluci, Fragkiskos Sardis, Konstantinos Antonakoglou, H. Aghvami","doi":"10.1109/EuCNC.2017.7980645","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980645","url":null,"abstract":"Capitalizing on the latest developments in 5G and ultra-low delay networking as well as Artificial Intelligence (AI) and robotics, we advocate here for the emergence of an entirely novel Internet which will enable the delivery of skills in digital form. We outline the technical challenges which need to be overcome to enable such a vision, i.e., on the development of a 5G Tactile Internet, standardized haptic codecs, and AI to enable the perception of zero delay networks. The paper is concluded with an overview on the current capabilities, and the standardization initiatives in the IEEE 5G Tactile Internet standards working group as well as the IEEE 5G Initiative.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72800669","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980728
Ilmari Maskulainen, P. Luoto, P. Pirinen, M. Bennis, K. Horneman, M. Latva-aho
Vehicles are the third fastest growing connected device type after smart phones and tablets. Also, automotive industry is interested to get more vehicles connected to the internet to improve traffic safety and efficiency. This creates a need for Vehicle-to-Everything (V2X) communications. In this work, the possibility of exploiting beamforming in LTE-V2X is considered. Singular value decomposition (SVD) receiver and precoder is implemented in an LTE-A system level simulator and the performance on multi-lane highway scenario is simulated and analyzed in downlink Vehicle-to-Infrastructure (V2I) scenario. The performance is compared to the conventional maximum-ratio combining (MRC) and LTE codebook precoded minimum mean square error (MMSE) receivers. In addition, the switched-beam beamforming is imitated by modified antenna patterns with 7 and 15 narrow beams. The results show that the SVD receiver provides gain compared to the conventional MRC and MMSE receivers in ideal scenario. Furthermore, with modified antenna patterns, the performance was enhanced when compared to the default antenna pattern.
{"title":"Performance evaluation of adaptive beamforming in 5G-V2X networks","authors":"Ilmari Maskulainen, P. Luoto, P. Pirinen, M. Bennis, K. Horneman, M. Latva-aho","doi":"10.1109/EuCNC.2017.7980728","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980728","url":null,"abstract":"Vehicles are the third fastest growing connected device type after smart phones and tablets. Also, automotive industry is interested to get more vehicles connected to the internet to improve traffic safety and efficiency. This creates a need for Vehicle-to-Everything (V2X) communications. In this work, the possibility of exploiting beamforming in LTE-V2X is considered. Singular value decomposition (SVD) receiver and precoder is implemented in an LTE-A system level simulator and the performance on multi-lane highway scenario is simulated and analyzed in downlink Vehicle-to-Infrastructure (V2I) scenario. The performance is compared to the conventional maximum-ratio combining (MRC) and LTE codebook precoded minimum mean square error (MMSE) receivers. In addition, the switched-beam beamforming is imitated by modified antenna patterns with 7 and 15 narrow beams. The results show that the SVD receiver provides gain compared to the conventional MRC and MMSE receivers in ideal scenario. Furthermore, with modified antenna patterns, the performance was enhanced when compared to the default antenna pattern.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"2015 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87768962","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980781
M. Nooruzzaman, T. Morioka
Various potential architectures of branching units for multi-core fiber undersea transmission systems are presented. It is also investigated how different architectures of branching unit influence the number of fibers and those of inline components.
{"title":"Multi-core fiber undersea transmission systems","authors":"M. Nooruzzaman, T. Morioka","doi":"10.1109/EuCNC.2017.7980781","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980781","url":null,"abstract":"Various potential architectures of branching units for multi-core fiber undersea transmission systems are presented. It is also investigated how different architectures of branching unit influence the number of fibers and those of inline components.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87064085","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980687
Kelvin Chelli, Praharsha Sirsi, T. Herfet
Doubly selective channels or time-varying multipath channels occur when communication systems are expected to work in a highly mobile environment. The estimation and the subsequent equalization of such channels is a non-trivial task. Thus, a channel estimation scheme that is robust, precise and works with a complexity that is applicable for consumer applications is vital to overcome the effects of such a channel at the receiver. The Matching Pursuit (MP) algorithm is a Compressed Sensing (CS) scheme that is shown to work well in scenarios of high mobility. However, good performance is achieved only when the right search metric is used. In this paper, an appropriate metric for the estimation of the multipath delays is proposed. It is shown that this metric produces an accurate estimate of the multipath delays under different channel conditions. In addition to this, a novel method that implicitly estimates the Doppler shift is proposed. The results show that the proposed schemes accurately estimate a doubly selective channel as compared to the classical MP and the Least Squares (LS) channel estimate. Moreover, an implicit estimation of the Doppler shift reduces the computational burden at the receiver resulting in a lower complexity when compared to the classical MP algorithm. The proposed scheme is implemented for the IEEE 802.11p standard and is applicable in any Orthogonal Frequency-Division Multiplexing (OFDM) based wireless system that is expected to work in highly mobile environments, specifically for 5G.
{"title":"Sparse doubly-selective channels: Estimating path parameters unambiguously","authors":"Kelvin Chelli, Praharsha Sirsi, T. Herfet","doi":"10.1109/EuCNC.2017.7980687","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980687","url":null,"abstract":"Doubly selective channels or time-varying multipath channels occur when communication systems are expected to work in a highly mobile environment. The estimation and the subsequent equalization of such channels is a non-trivial task. Thus, a channel estimation scheme that is robust, precise and works with a complexity that is applicable for consumer applications is vital to overcome the effects of such a channel at the receiver. The Matching Pursuit (MP) algorithm is a Compressed Sensing (CS) scheme that is shown to work well in scenarios of high mobility. However, good performance is achieved only when the right search metric is used. In this paper, an appropriate metric for the estimation of the multipath delays is proposed. It is shown that this metric produces an accurate estimate of the multipath delays under different channel conditions. In addition to this, a novel method that implicitly estimates the Doppler shift is proposed. The results show that the proposed schemes accurately estimate a doubly selective channel as compared to the classical MP and the Least Squares (LS) channel estimate. Moreover, an implicit estimation of the Doppler shift reduces the computational burden at the receiver resulting in a lower complexity when compared to the classical MP algorithm. The proposed scheme is implemented for the IEEE 802.11p standard and is applicable in any Orthogonal Frequency-Division Multiplexing (OFDM) based wireless system that is expected to work in highly mobile environments, specifically for 5G.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"27 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83665647","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980688
David Demmer, R. Gerzaguet, Jean-Baptiste Doré, D. L. Ruyet, D. Kténas
A flexible and efficient use of the frequency resource is a key challenge for future wireless technologies. The new requirements are not satisfied by the CP-OFDM which has motivated the research on alternative waveforms. Recently, Block-Filtered OFDM modulation scheme has been proposed. This waveform addresses most of the CP-OFDM's drawbacks at the price of a slight complexity increase of the transmitter. The scheme is based on a filter-bank, a precoding stage that ensures the Near Perfect Reconstruction property and a pre-compensation stage which avoids filtering at the receiver. In this paper, the filter specifications for BF-OFDM are derived and an optimization method based on self-interference rejection is proposed. Optimized filter shape can provide up to 70 dB of Signal-to-Interference Ratio which justifies the Near Perfect Reconstruction property with an enhanced spectral confinement and no channel performance degradation.
{"title":"Filter design for 5G BF-OFDM waveform","authors":"David Demmer, R. Gerzaguet, Jean-Baptiste Doré, D. L. Ruyet, D. Kténas","doi":"10.1109/EuCNC.2017.7980688","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980688","url":null,"abstract":"A flexible and efficient use of the frequency resource is a key challenge for future wireless technologies. The new requirements are not satisfied by the CP-OFDM which has motivated the research on alternative waveforms. Recently, Block-Filtered OFDM modulation scheme has been proposed. This waveform addresses most of the CP-OFDM's drawbacks at the price of a slight complexity increase of the transmitter. The scheme is based on a filter-bank, a precoding stage that ensures the Near Perfect Reconstruction property and a pre-compensation stage which avoids filtering at the receiver. In this paper, the filter specifications for BF-OFDM are derived and an optimization method based on self-interference rejection is proposed. Optimized filter shape can provide up to 70 dB of Signal-to-Interference Ratio which justifies the Near Perfect Reconstruction property with an enhanced spectral confinement and no channel performance degradation.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"53 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80714784","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980649
P. Chainho, Steffen Druesedow, R. Pereira, Ricardo Chaves, Nuno Santos, Kay Haensge, Antón Román Portabales
This paper introduces a new communication paradigm called Decentralized Communications, which enables cross-domain communication services to trustfully use peer-to-peer networks. Decentralized Communication services are inherently inter-operable without the need to standardize protocols or service APIs. This property is achieved by using the Protocol-on-the-fly concept and the Reporter-Observer communication pattern. Users can select Identity Providers to mutually authenticate themselves and secure communications, independently of the Communication Service Provider. Decentralized Communications can be applied to any kind of communication, including human-to-human, human-to-things, and things-to-things communication. The reTHINK project has developed an Open Source reference implementation of a Decentralized Communications framework, which was successfully used in various challenging scenarios. The results of this project demonstrate the feasibility to enhance interoperability and users' privacy, and the freedom to select whom to trust, without slowing down ICT innovation pace. It is expected that Decentralized Communications will impact the design of more agile Service Delivery frameworks for Internet of Things and 5G networks.
{"title":"Decentralized Communications: Trustworthy interoperability in peer-to-peer networks","authors":"P. Chainho, Steffen Druesedow, R. Pereira, Ricardo Chaves, Nuno Santos, Kay Haensge, Antón Román Portabales","doi":"10.1109/EuCNC.2017.7980649","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980649","url":null,"abstract":"This paper introduces a new communication paradigm called Decentralized Communications, which enables cross-domain communication services to trustfully use peer-to-peer networks. Decentralized Communication services are inherently inter-operable without the need to standardize protocols or service APIs. This property is achieved by using the Protocol-on-the-fly concept and the Reporter-Observer communication pattern. Users can select Identity Providers to mutually authenticate themselves and secure communications, independently of the Communication Service Provider. Decentralized Communications can be applied to any kind of communication, including human-to-human, human-to-things, and things-to-things communication. The reTHINK project has developed an Open Source reference implementation of a Decentralized Communications framework, which was successfully used in various challenging scenarios. The results of this project demonstrate the feasibility to enhance interoperability and users' privacy, and the freedom to select whom to trust, without slowing down ICT innovation pace. It is expected that Decentralized Communications will impact the design of more agile Service Delivery frameworks for Internet of Things and 5G networks.","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"26 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84828065","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}
Pub Date : 2017-06-12DOI: 10.1109/EuCNC.2017.7980782
N. Ermolova
In this work, we analyze the outage probability in finite wireless networks operating in line-of-sight (LOS) environment with a given statistical distribution of transmitter-receiver distance. To generalize our analysis, we use a recently proposed beta distribution as a substitute to real distance distributions in finite random networks [1]. Path-loss and line-of-sight propagation effects are taken into consideration. Moreover, we also analyze effects of possibly different path-loss attenuations of LOS and non-LOS signal components [2]–[3].
{"title":"Outage probability analysis in finite wireless networks operating in LOS environment","authors":"N. Ermolova","doi":"10.1109/EuCNC.2017.7980782","DOIUrl":"https://doi.org/10.1109/EuCNC.2017.7980782","url":null,"abstract":"In this work, we analyze the outage probability in finite wireless networks operating in line-of-sight (LOS) environment with a given statistical distribution of transmitter-receiver distance. To generalize our analysis, we use a recently proposed beta distribution as a substitute to real distance distributions in finite random networks [1]. Path-loss and line-of-sight propagation effects are taken into consideration. Moreover, we also analyze effects of possibly different path-loss attenuations of LOS and non-LOS signal components [2]–[3].","PeriodicalId":6626,"journal":{"name":"2017 European Conference on Networks and Communications (EuCNC)","volume":"73 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80574804","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}
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