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Linear Degrees of Freedom of Full-Duplex Cellular Networks with Reconfigurable Antennas 具有可重构天线的全双工蜂窝网络线性自由度
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2017-08-22 DOI: 10.1109/TWC.2017.2741489
Heecheol Yang, W. Shin, Jungwoo Lee
{"title":"Linear Degrees of Freedom of Full-Duplex Cellular Networks with Reconfigurable Antennas","authors":"Heecheol Yang, W. Shin, Jungwoo Lee","doi":"10.1109/TWC.2017.2741489","DOIUrl":"https://doi.org/10.1109/TWC.2017.2741489","url":null,"abstract":"We derive the linear degrees of freedom (DoF) of a cellular network without channel state information at the transmit sides in which the base station operates in a full-duplex mode, and the base station and users are equipped with reconfigurable antennas which can switch among their preset modes. To derive an inner- bound, we propose an achievable scheme to align interferences from uplink users to downlink users via preset mode switching of reconfigurable antennas. The key concept of our scheme is to align the interfering signals of uplink transmission at the downlink users, through the identical preset mode pattern over the multiple of downlink transmissions and silences of the base station. We also develop an outer- bound on the linear sum DoF of the cellular network, which matches up with the inner-bound.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117339474","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: 2
An Equivalence between Secure Network and Index Coding 安全网络与索引编码的等价性
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2017-02-15 DOI: 10.1109/GLOCOMW.2016.7848834
L. Ong, B. Vellambi, J. Kliewer, Phee Lep Yeoh
{"title":"An Equivalence between Secure Network and Index Coding","authors":"L. Ong, B. Vellambi, J. Kliewer, Phee Lep Yeoh","doi":"10.1109/GLOCOMW.2016.7848834","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848834","url":null,"abstract":"We extend the equivalence between network coding and index coding by Effros, El Rouayheb, and Langberg to the secure communication setting in the presence of an eavesdropper. Specifically, we show that the most general versions of secure network-coding setup by Chan and Grant and the secure index- coding setup by Dau, Skachek, and Chee, which also include the randomised encoding setting, are equivalent.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495140","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: 8
Attainable Capacity of Spatial Radio Channels: A Multiple-Frequency Analysis 空间无线电信道的可实现容量:多频率分析
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-08 DOI: 10.1109/GLOCOMW.2016.7848843
K. Haneda, S. Nguyen, A. Khatun
{"title":"Attainable Capacity of Spatial Radio Channels: A Multiple-Frequency Analysis","authors":"K. Haneda, S. Nguyen, A. Khatun","doi":"10.1109/GLOCOMW.2016.7848843","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848843","url":null,"abstract":"This paper reports an attainable channel capacity and spatial degrees-of-freedom of multiple-antenna radio channels at 15, 28 and 61 GHz. The analysis is based on channel sounding in a same street canyon. The attainable capacity is evaluated so that it depends only on the antenna aperture size but is independent of implementation of antenna elements on the aperture. The analysis shows that multipath richness decreases as the frequency increases, as indicated by the smaller spatial degrees-of-freedom at higher frequencies for the same electrical aperture size of the receive antenna. The analysis furthermore reveals that channels at the three radio frequencies can attain almost the same level of capacity for a given transmit power and physical size of the receive antenna. The result is explained by a greater electrical size of the antenna aperture at the higher frequencies that can leverage higher gains and finer angular resolution and hence normalize the availability of fewer multipaths.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117196658","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: 5
A Named Data Network Approach to Energy Efficiency in IoT 物联网能源效率的命名数据网络方法
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-05 DOI: 10.1109/GLOCOMW.2016.7848819
O. Hahm, E. Baccelli, T. Schmidt, Matthias Wählisch, C. Adjih
{"title":"A Named Data Network Approach to Energy Efficiency in IoT","authors":"O. Hahm, E. Baccelli, T. Schmidt, Matthias Wählisch, C. Adjih","doi":"10.1109/GLOCOMW.2016.7848819","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848819","url":null,"abstract":"In the IoT, the trade-off between content availability and energy efficiency plays a crucial role. The standard approach to energy efficiency in the IoT combines low-power radios, network protocols letting devices sleep most of the time, and centralized caching of content, either at a designated proxy or in the cloud via an uplink, which maintains IoT content availability while devices sleep. However, this approach is not possible in a number of IoT scenarios, where a designated gateway/proxy is unavailable most of the time. In this paper, we propose an approach leveraging distributed caching for IoT content, based on an information-centric networking paradigm. We extend the NDN protocol with a variety of caching and replacement strategies, and we discuss alternative approaches for extending NDN to accommodate such IoT use cases. Based on extensive experiments on real IoT hardware in a network gathering hundreds of nodes, we demonstrate these caching strategies can bring 90% reduction in energy consumption while maintaining IoT content availability above 90%.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128614629","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: 23
Evaluation of Intra-Subband Power Allocation for a Downlink Non-Orthogonal Multiple Access (NOMA) System 下行非正交多址(NOMA)系统子带内功率分配评估
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOMW.2016.7848899
Zeina Eddo, Marie-Rita Hojeij, C. A. Nour, J. Farah, C. Douillard
{"title":"Evaluation of Intra-Subband Power Allocation for a Downlink Non-Orthogonal Multiple Access (NOMA) System","authors":"Zeina Eddo, Marie-Rita Hojeij, C. A. Nour, J. Farah, C. Douillard","doi":"10.1109/GLOCOMW.2016.7848899","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848899","url":null,"abstract":"Non-Orthogonal Multiple Access (NOMA) schemes superpose multiple users in the power domain. It is commonly assumed that the achieved throughput in a downlink NOMA system increases with the channel gain difference between paired users. This paper investigates the accuracy of this claim when different intra-subband power allocation techniques are studied. Moreover, the Proportional Fairness (PF) scheduler is used as a resource allocation mechanism to highlight the importance of the choice of user pairing and of the intra-subband power allocation scheme. Results show that the achieved throughput does not always evolve in the same direction as the channel gain difference between paired users, owing to the choice of the intra-subband power allocation technique. In addition, it was found that the PF scheduler is not fully adapted to NOMA.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"101 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122976155","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: 7
Self-Adaptive Power Control Mechanism in D2D Enabled Hybrid Cellular Network with mmWave Small Cells: An Optimization Approach 基于毫米波小蜂窝的D2D混合蜂窝网络自适应功率控制机制研究
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOMW.2016.7849042
S. M. R. Naqvi, Syed Ali Hassan, H. Pervaiz, Q. Ni, Leila Musavian
{"title":"Self-Adaptive Power Control Mechanism in D2D Enabled Hybrid Cellular Network with mmWave Small Cells: An Optimization Approach","authors":"S. M. R. Naqvi, Syed Ali Hassan, H. Pervaiz, Q. Ni, Leila Musavian","doi":"10.1109/GLOCOMW.2016.7849042","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7849042","url":null,"abstract":"Millimeter wave (mmWave) and Device-to-Device (D2D) communications have been considered as the key enablers of the next generation networks. We consider a D2D-enabled hybrid cellular network compromising of $mu W$ macro-cells coexisting with mmWave small cells. We investigate the dynamic resource sharing in downlink transmission to maximize the energy efficiency (EE) of the priority, or cellular users (CUs), that are opportunistically served by either macrocells or mmWave small cells, while satisfying a minimum quality-of-service (QoS) level for the D2D pairs. In order to solve this problem, we first formulate a self-adaptive power control mechanism for the D2D pairs subject to the interference threshold constraint set for the CUs, while maintaining its minimum QoS level. Subsequently, the original EE optimization problem, which aimed at maximizing the EE for both CUs and D2D pairs, has been broken up into two subproblems that manage the radio resource allocation for D2D pairs and maximize EE exclusively for CUs, in that order. We then propose an iterative algorithm to provide a near- optimal EE solution for CUs.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129404763","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: 17
Receive Antenna Shift Keying Modulation Testbed for Wireless Communications Systems 无线通信系统接收天线移位键控调制试验台
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOMW.2016.7849016
Y. Kokar, Jean-Christophe Prévotet, M. Hélard
{"title":"Receive Antenna Shift Keying Modulation Testbed for Wireless Communications Systems","authors":"Y. Kokar, Jean-Christophe Prévotet, M. Hélard","doi":"10.1109/GLOCOMW.2016.7849016","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7849016","url":null,"abstract":"Time Reversal (TR) applied to wireless communications systems has already shown very promising results at low Signal-to-Noise Ratio (SNR). In this paper, we describe a prototype implementing the Receive Antenna Shift Keying (RASK) modulation scheme combined with TR. RASK modulation consists in focusing a signal onto one receive antenna among several antennas. The index of the target receive antenna is updated every symbol duration and is coded by the binary sequence to be transmitted during the considered symbol. For spatial signal focusing, TR pre-filtering technique is used at the transmitter side. In this study, we also propose a very simple and efficient way to discriminate the collected information at the receiver side. This technique allows receivers with low complexity to be implemented in a multiple-input multiple-output (MIMO) configuration. Moreover, we evaluate the performance of RASK modulation according to the number of antennas at the transmitter and receiver side and demonstrate the feasibility of our approach in a realistic scenario.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125847225","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: 12
Hierarchical Service Placement for Demanding Applications 要求苛刻的应用程序的分层服务放置
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOMW.2016.7848922
E. Maini, T. K. Phan, D. Griffin, M. Rio
{"title":"Hierarchical Service Placement for Demanding Applications","authors":"E. Maini, T. K. Phan, D. Griffin, M. Rio","doi":"10.1109/GLOCOMW.2016.7848922","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848922","url":null,"abstract":"The increasing scale of cloud environments requires more scalable orchestration systems for determining which physical resources are responsible for processing service requests. A centralised service placement lacks scalability while a fully decentralised approach only has a limited view of the system. For these reasons, this paper investigates a hierarchical approach for service placement in a distributed environment, which increases scalability while maintains high service placement quality. First, we design a polynomial optimisation algorithm to place services in cloud data centers based on our novel utility function. Then, we describe a hierarchical model with the need to only know a small subset of the data required by the global optimisation formulation. Simulations show that our approach is scalable and performs well, close to the centralised model.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133299188","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
Design and Analysis of Full-Duplex Massive MIMO Cellular Networks 全双工大规模MIMO蜂窝网络的设计与分析
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-04 DOI: 10.1109/GLOCOMW.2016.7848875
Arman Shojaeifard, Kai‐Kit Wong, M. Renzo, K. Hamdi, Jie Tang
{"title":"Design and Analysis of Full-Duplex Massive MIMO Cellular Networks","authors":"Arman Shojaeifard, Kai‐Kit Wong, M. Renzo, K. Hamdi, Jie Tang","doi":"10.1109/GLOCOMW.2016.7848875","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848875","url":null,"abstract":"This paper provides a theoretical framework for the study of full-duplex (FD) massive multiple- input multiple-output (MIMO) cellular networks over Rician self-interference (SI) and Rayleigh intended and other-interference fading channels. To facilitate bi-directional wireless functionality, we incorporate (i) a downlink (DL) linear zero-forcing with self-interference-nulling (ZF-SIN) precoding scheme at the FD base stations (BSs), and (ii) an uplink (UL) self-interference- aware (SIA) fractional power control mechanism at the FD user equipments (UEs). Linear ZF receivers are further utilized for signal detection in the UL. The results indicate that the UL rate bottleneck in the baseline FD single-antenna system can be elevated by several hundred times via exploiting massive MIMO. On the other hand, the findings may be viewed as a reality-check as the largest spectral efficiency gain from the FD massive MIMO cellular network over its half-duplex (HD) counterpart under state-of-the-art system parameters is shown to be in the region of ∼40%.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114193565","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: 7
Evaluation of Waveforms for Mobile Radio Communications above 6 GHz 6ghz以上移动无线电通信波形的评估
2016 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2016-12-01 DOI: 10.1109/GLOCOMW.2016.7848900
Ali A. Zaidi, Jian Luo, R. Gerzaguet, Hua Wang, Xiaoming Chen, Y. Qi, N. Cassiau, A. Wolfgang, Jaakko Vihriälä, Anastasios Kakkavas, T. Svensson, Jafar Mohammadi, Richard J. Weiler, M. Dieudonne, H. Halbauer, Vicent Molés-Cases, H. Miao
{"title":"Evaluation of Waveforms for Mobile Radio Communications above 6 GHz","authors":"Ali A. Zaidi, Jian Luo, R. Gerzaguet, Hua Wang, Xiaoming Chen, Y. Qi, N. Cassiau, A. Wolfgang, Jaakko Vihriälä, Anastasios Kakkavas, T. Svensson, Jafar Mohammadi, Richard J. Weiler, M. Dieudonne, H. Halbauer, Vicent Molés-Cases, H. Miao","doi":"10.1109/GLOCOMW.2016.7848900","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2016.7848900","url":null,"abstract":"This paper provides a high level comparison of several multi-carrier and single-carrier waveforms based on the evaluations performed in mmMAGIC project. The waveforms are assessed for the performance indicators that are relevant to mobile radio communication above 6 GHz, specially the millimeter wave frequencies. The evaluations are performed in mmMAGIC waveform simulators under common assumptions on carrier frequencies, waveform parameters, channel and impairment models. The evaluation results reveal that OFDM is suitable for above 6 GHz communication. For above ↑30 GHz communication, OFDM with PAPR reduction and DFTS-OFDM are both promising options. Moreover, some potential enhancements to OFDM (use of window/pulse shape, subband filters, unique word, zero tailing), parametrization of FBMC, and constrained envelop continuous phase modulation for above 6 GHz communication have been discussed.","PeriodicalId":175676,"journal":{"name":"2016 IEEE Globecom Workshops (GC Wkshps)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115004697","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: 9
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