2018 IEEE International Conference on Communications (ICC)最新文献

Accounting for Blockage and Shadowing at 60-GHz mmWave Mesh Networks: Interference Matters 60ghz毫米波网状网络阻塞和阴影的计算:干扰问题

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-08-20 DOI: 10.1109/ICC.2018.8422157

Kangjia Lyu, Z. Rezki, Mohamed-Slim Alouini

引用次数: 3

Adaptive Frequency Reuse for Beam Allocation Based Multiuser Massive MIMO Systems 基于波束分配的多用户大规模MIMO系统自适应频率复用

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422264

Junyuan Wang, N. Gomes, Jiangzhou Wang

引用次数: 0

Power Minimization for Cooperative Wireless Powered Mobile Edge Computing Systems 协同无线供电移动边缘计算系统的功耗最小化

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422459

Xiaoyan Hu, Kai‐Kit Wong, Kun Yang

引用次数: 2

On the Optimality of Virtualized Security Function Placement in Multi-Tenant Data Centers 多租户数据中心虚拟化安全功能配置的优化研究

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422426

Abeer Ali, C. Anagnostopoulos, D. Pezaros

引用次数: 3

Revisiting MMSE Combining for Massive MIMO over Heterogeneous Propagation Channels 异构传播信道上大规模MIMO的MMSE合并研究

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422340

H. Tataria, Peter J. Smith, M. Matthaiou, H. Ngo, P. Dmochowski

{"title":"Revisiting MMSE Combining for Massive MIMO over Heterogeneous Propagation Channels","authors":"H. Tataria, Peter J. Smith, M. Matthaiou, H. Ngo, P. Dmochowski","doi":"10.1109/ICC.2018.8422340","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422340","url":null,"abstract":"We consider a massive multiple-input multiple- output system with minimum-mean-squared-error processing on the uplink. A novel analytical framework is proposed to approximate the instantaneous signal-to-interference-plus-noise- ratio (SINR) of an arbitrary user terminal, as well as, the system sum spectral efficiency. Unlike previous studies, our methodology considers spatially correlated Ricean fading, with unequal Ricean K-factors, spatial correlation matrices and link gains across all terminals. Under this fully heterogeneous setting, we demonstrate that the SINR of a terminal can be tightly approximated by a linear combination of non-central chi-squared random variables, where the scaling depends on the individual link gains, K-factors, and eigenvalues of the terminal specific correlation matrices. Our approximations remain tight across the considered spatial correlation models, K-factor models, average uplink signal-to-noise-ratios and number of receive antennas. Leveraging the general form of the SINR and sum spectral efficiency, an analytical method to approximate their statistical moments is presented utilizing the moment generating function. The generality of the aforementioned analytical results is demonstrated via several special cases of practical relevance.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127340692","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

Uplink Interference Analysis with RF Switching for Lens-Based Millimeter-Wave Systems 基于透镜的毫米波系统的射频交换上行干扰分析

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422812

H. Tataria, M. Matthaiou, Peter J. Smith, G. Alexandropoulos, V. Fusco

{"title":"Uplink Interference Analysis with RF Switching for Lens-Based Millimeter-Wave Systems","authors":"H. Tataria, M. Matthaiou, Peter J. Smith, G. Alexandropoulos, V. Fusco","doi":"10.1109/ICC.2018.8422812","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422812","url":null,"abstract":"In this paper, we take a fundamental look at the interference characteristics of a lens-based millimeter-wave (mmWave) multiuser multiple-input multiple-output system (MU-MIMO) system. We consider a hybrid architecture, implemented via a bank of radio-frequency (RF) switches which perform beam selection followed by low-complexity uplink maximum-ratio combining (MRC) at baseband. Considering a Rotman lens antenna array in line- of-sight (LoS) propagation, we derive tight analytical approximations to the average (expected) interference power of an arbitrary terminal, with and without the presence of RF switching. The analytical expressions show that without RF switching, the Rotman lens losses its benefits and collapses to a conventional uniform linear array. Our numerical results demonstrate that the expected interference power to a given terminal decreases significantly with RF switching, due to beam selection separating the uplink direction-of-arrivals (DoAs), in contrast to the case without RF switching, which relaxes the beam selection constraint and thus allows very similar DoAs. Overall, the results in this paper emphasize the necessity of RF switching in order to obtain superior performance with lens arrays, over conventional phased arrays.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124978422","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: 14

Hey! I Have Something for You: Paging Cycle Based Random Access for LTE-A 嘿!我有东西给你:基于分页周期的LTE-A随机存取

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422491

Chia-An Hsu, Yi Ren, K. Lin, Y. Tseng

{"title":"Hey! I Have Something for You: Paging Cycle Based Random Access for LTE-A","authors":"Chia-An Hsu, Yi Ren, K. Lin, Y. Tseng","doi":"10.1109/ICC.2018.8422491","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422491","url":null,"abstract":"The surge of M2M devices imposes new challenges for the current cellular network architecture, especially in radio access networks. One of the key issues is that the M2M traffic, characterized by small data and massive connection requests, makes significant collisions and congestion during network access via the random access (RA) procedure. To resolve this problem, in this paper, we propose a paging cycle-based protocol to facilitate the random access procedure in LTE- A. The high-level idea of our design is to leverage a UE's paging cycle as a hint to preassign RA preambles so that UEs can avoid preamble collisions at the first place. Our rpHint has two modes: (1) collision-free paging, which completely prevents cross-collision between paged user equipment (UEs) and random access UEs, and (2) collision-avoidance paging, which alleviates cross-collision. Moreover, we formulate a mathematical model to derive the optimal paging ratio that maximizes the expected number of successful UEs. This analysis also allows us to adapt dynamically to the better one between the two modes. We show via extensive simulations that our design increases the number of successful UEs in an RA procedure by more than 3× as compared to the legacy RA scheme of the LTE.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129985387","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

A Framework for End-to-End Latency Measurements in a Satellite Network Environment 卫星网络环境中端到端时延测量框架

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422913

A. A. Bisu, Alan Purvis, Katharine Brigham, Hongjian Sun

{"title":"A Framework for End-to-End Latency Measurements in a Satellite Network Environment","authors":"A. A. Bisu, Alan Purvis, Katharine Brigham, Hongjian Sun","doi":"10.1109/ICC.2018.8422913","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422913","url":null,"abstract":"In this work, a precise method for measuring end-to-end (E2E) latency in satellite Internet Protocol (IP) networks is proposed. Latency (i.e., time delay) is considered a key parameter that affects the quality of service (QoS) and the performance of communication systems. This is more pronounced in the IP over Satellite. Metrics such as throughput and bandwidth performance of communication systems are dependent on latency, which also has a direct impact on other QoS metrics, such as Internet packet transfer delay and delay variation (or jitter). The upper limits of QoS objective performance metrics are defined by E2E latency for different QoS traffic classes in this environment. Therefore, there is a need to develop efficient methods for the accurate measurement of E2E latency in a satellite IP environment. Two case study scenarios were developed for satellite heterogeneous networks to measure the latency in a satellite IP network. Two geostationary satellite network services were used to compare the performance of the different scenarios and networks. The results demonstrate that at least 50% of the E2E latency is due to the processing and transmitting of IP packets over the satellite in both scenarios. Inconsistent latency behaviour was also observed from daily results at different times of the day, which may degrade performance of jitter sensitive applications.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"os-33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127867834","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: 11

On the Efficiency Tradeoffs in User-Centric Cloud RAN 以用户为中心的云RAN的效率权衡

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422228

U. Hashmi, Syed Ali Raza Zaidi, Arsalan Darbandi, A. Imran

{"title":"On the Efficiency Tradeoffs in User-Centric Cloud RAN","authors":"U. Hashmi, Syed Ali Raza Zaidi, Arsalan Darbandi, A. Imran","doi":"10.1109/ICC.2018.8422228","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422228","url":null,"abstract":"Ambitious targets for aggregate throughput, energy efficiency and ubiquitous user experience are propelling the advent of ultra- dense networks. Intercell interference and high energy consumption in an ultra-dense network are the prime hindering factors in pursuit of these goals. To address the aforementioned challenges, in this paper, we propose a novel user-centric network orchestration solution for Cloud RAN based ultra-dense deployments. In this solution, a cluster (virtual disc) is created around users depending on their service priority. Within the cluster radius, only the best remote radio head (RRH) is activated to serve the user, thereby decreasing interference and saving energy. We follow a stochastic geometry based approach to quantify the area spectral efficiency (ASE) and RRH power consumption models to quantity energy(EE) efficiency of the proposed user-centric Cloud RAN (UCRAN). Through extensive analysis, we observe that the cluster sizes that yield optimal ASE and EE are quite different. Subsequently, we propose a game theoretic self-organizing network (GT-SON) framework that can orchestrate the network between ASE and EE focused operational modes in real-time in response to changes in network conditions and the operator's revenue model, to achieve a Pareto optimal solution. A bargaining game is modeled to investigate the ASE-EE tradeoff through adjustment in the exponential efficiency weightage in the Nash bargaining solution (NBS). Results show that compared to current non user-centric network design, the proposed solution offers the flexibility to operate the network at multiple folds higher ASE or EE along with significant improvement in user experience.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114656218","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

Spatial Correlation Variability in Multiuser Systems 多用户系统中的空间相关变异性

2018 IEEE International Conference on Communications (ICC) Pub Date : 2018-07-31 DOI: 10.1109/ICC.2018.8422818

H. Tataria, Peter J. Smith, A. Molisch, S. Sangodoyin, M. Matthaiou, P. Dmochowski, Jianzhong Zhang, R. Thomä

{"title":"Spatial Correlation Variability in Multiuser Systems","authors":"H. Tataria, Peter J. Smith, A. Molisch, S. Sangodoyin, M. Matthaiou, P. Dmochowski, Jianzhong Zhang, R. Thomä","doi":"10.1109/ICC.2018.8422818","DOIUrl":"https://doi.org/10.1109/ICC.2018.8422818","url":null,"abstract":"Spatial correlation across an antenna array is known to be detrimental to the terminal signal-to- interference-plus-noise-ratio (SINR) and system spectral efficiency. For a downlink multiuser multiple-input multiple-output system (MU-MIMO), we show that the widely used, yet overly simplified, correlation models which generate fixed correlation patterns for all terminals tend to underestimate the system performance. This is in contrast to more sophisticated, yet physically motivated, remote scattering models that generate variations in the correlation structure across multiple terminals. The remote scattering models are parameterized with measured data from a recent 2.53 GHz urban macrocellular channel measurement campaign in Cologne, Germany. Assuming spatially correlated Ricean fading, with maximum-ratio transmission precoding, tight closed-form approximations to the expected (average) SINR, and ergodic sum spectral efficiency are derived. The expressions provide clear insights into the impact of variable correlation patterns on the above performance metrics. Our results demonstrate the sensitivity of the MU-MIMO performance to different correlation models, and provide a cautionary tale of its impact.","PeriodicalId":387855,"journal":{"name":"2018 IEEE International Conference on Communications (ICC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122380207","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: 10