2018 IEEE Wireless Communications and Networking Conference (WCNC)最新文献_第5页

Wireless network optimization via stochastic sub-gradient descent: Rate analysis 随机次梯度下降无线网络优化:速率分析

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377002

A. S. Bedi, K. Rajawat

{"title":"Wireless network optimization via stochastic sub-gradient descent: Rate analysis","authors":"A. S. Bedi, K. Rajawat","doi":"10.1109/WCNC.2018.8377002","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377002","url":null,"abstract":"This paper considers a general stochastic resource allocation problem that arises widely in wireless networks, cognitive radio networks, smart-grid communications, and cross-layer design. The problem formulation involves expectations with respect to a collection of random variables with unknown distributions, representing exogenous quantities such as channel gain, user density, or spectrum occupancy. The problem is solved in dual domain using a constant step-size stochastic dual subgradient descent (SDSD) method. This results in a primal resource allocation subproblem at each time instant. The goal here is to characterize the non-asymptotic behavior of such stochastic resource allocations in an almost sure sense. This paper establishes a convergence rate result for the SDSD algorithm that precisely characterizes the trade-off between the rate of convergence and the choice of constant step size e. Towards this end, a novel stochastic bound on the gap between the objective function and the optimum is developed. The asymptotic behavior of the stochastic term is characterized in an almost sure sense, thereby generalizing the existing results for the stochastic subgradient methods. As an application, the power and user-allocation problem in device-to-device networks is formulated and solved using the SDSD algorithm. Further intuition on the rate results is obtained from the verification of the regularity conditions and accompanying simulation results.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123552412","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: 1

A marketplace for efficient and secure caching for IoT applications in 5G networks 为5G网络中的物联网应用提供高效、安全的缓存市场

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377254

Muhammad Usman, M. R. Asghar, I. S. Ansari, F. Granelli, Q. Abbasi, K. Qaraqe

引用次数: 5

Adapting the number of antennas and power to traffic load: When to turn on massive MIMO? 调整天线数量和功率以适应业务负载:何时开启大规模MIMO?

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377286

Kamil Senel, Emil Björnson, E. Larsson

引用次数: 2

Hybrid retransmission scheme for QoS-defined 5G ultra-reliable low-latency communications qos定义的5G超可靠低延迟通信的混合重传方案

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377097

Luca Buccheri, Silvio Mandelli, Stephan Saur, L. Reggiani, M. Magarini

{"title":"Hybrid retransmission scheme for QoS-defined 5G ultra-reliable low-latency communications","authors":"Luca Buccheri, Silvio Mandelli, Stephan Saur, L. Reggiani, M. Magarini","doi":"10.1109/WCNC.2018.8377097","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377097","url":null,"abstract":"One of the key challenges in next generation 5G networks is to deliver Ultra-Reliable Low-Latency Communications (URLLC). Recent advances in information theory about principles that govern short packet transmissions pointed out that, for the URLLC typical short packet dimension, achieving higher reliabilities comes at the price of a lower maximum achievable rate, thus reducing spectral efficiency. Hence, retransmissions are used in LTE and planned for 5G, in order to achieve reliability with a better resource consumption, at the price of increased packet latency. Keeping in mind the stringent requirements for URLLC, in this paper we analyze the tradeoffs and limitations of retransmission strategies considered in the literature, either too demanding in terms of wireless resources and aggressive URLLC performance or the contrary. Then we propose a novel scheme, whose purpose is to match the URLLC requirements, minimizing the resource consumption. We evaluate the schemes through simulations and highlight the advantages of the proposed scheme, providing also insights on the performance HARQ techniques in URLLC scenarios.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115198984","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

Radio resource and service orchestration for virtualised multi-tenant mobile Het-Nets 虚拟化多租户移动网络的无线电资源和服务编排

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377110

B. Rouzbehani, L. Correia, Luisa Caeiro

{"title":"Radio resource and service orchestration for virtualised multi-tenant mobile Het-Nets","authors":"B. Rouzbehani, L. Correia, Luisa Caeiro","doi":"10.1109/WCNC.2018.8377110","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377110","url":null,"abstract":"Virtualization as a promising technology for future mobile communications enables the principle of customized services and multi-tenancy by providing a shared resource platform to all the involved tenants in an isolated manner. This paper proposes a model of radio resource management in virtualized heterogeneous mobile networks comprised of different access technologies. To realize the concept of virtualization, the roles of Infrastructure Providers (InPs) and network operators are separated. A virtualization platform is responsible for aggregating and vitalizing all the radio resources from different access technologies owned by InPs, and distributing the total capacity among various Virtual Network Operators (VNOs) in the role of tenants, according to service priorities and some fairness criteria, with the aim of satisfying their Service Level Agreements (SLAs). The model considers two VNOs with the capability of providing different service classes and SLAs in a multi access technology environment. Results under different channel conditions and traffic loads confirm a level of isolation in the performance of each VNO, while the SLAs are addressed to the highest possible level. Furthermore, almost always 100% of the aggregated capacity is utilized independently of the variation of different network parameters.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115570833","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

Empirical path loss model for 2.4 GHz IEEE 802.15.4 wireless networks in compact cars 小型车2.4 GHz IEEE 802.15.4无线网络的经验路径损耗模型

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377277

Stefan Reis, D. Pesch, Bernd-Ludwig Wenning, M. Kuhn

引用次数: 6

Computation offloading over a shared communication channel for mobile cloud computing 基于共享通信信道的移动云计算计算卸载

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8376951

Kai Guo, Mingcong Yang, Yongbing Zhang

引用次数: 6

On the security verification of a short message service protocol 短消息服务协议的安全性验证

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377349

A. Jurcut, Madhusanka Liyanage, Jinyong Chen, Cornelia Györödi, Jingsha He

引用次数: 7

Design and provisioning of optical wireless data center networks: A traffic grooming approach 光无线数据中心网络的设计和供应:一种流量疏导方法

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8377411

Abdulkadir Celik, A. AlGhadhban, B. Shihada, Mohamed-Slim Alouini

{"title":"Design and provisioning of optical wireless data center networks: A traffic grooming approach","authors":"Abdulkadir Celik, A. AlGhadhban, B. Shihada, Mohamed-Slim Alouini","doi":"10.1109/WCNC.2018.8377411","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8377411","url":null,"abstract":"Traditional wired data center networks (DCNs) suffer from cabling complexity, lack flexibility, and are limited by the speed of digital switches. In this paper, we alternatively develop a top-down traffic grooming (TG) approach for design and provisioning of optical wireless DCNs. While switches are modeled as hybrid opto-electronic cross-connects, links are modeled as wavelength division multiplexing (WDM) capable free-space optic (FSO) channels. Using the standard TG terminology, we formulate the optimal mixed integer linear problem considering the virtual topology, flow conversation, connection topology, non-bifurcation, and capacity constraints. Thereafter, we develop a fast sub-optimal solution where mice flows (MFs) are groomed and forwarded on predetermined rack-to-rack (R2R) lightpaths. On the other hand, elephant flows (EFs) are forwarded over dedicated server-to-server (S2S) express lightpaths whose routes and capacity are dynamically determined based on wavelength and capacity availability. Emulation results show that proposed models and algorithms provide a significant throughput improvement upon traditional DCNs for both MFs and EFs.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128270533","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: 15

Optimal data partitioning and forwarding in opportunistic mobile networks 机会移动网络中的最优数据划分和转发

2018 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2018-04-15 DOI: 10.1109/WCNC.2018.8376979

Ning Wang, Jie Wu

{"title":"Optimal data partitioning and forwarding in opportunistic mobile networks","authors":"Ning Wang, Jie Wu","doi":"10.1109/WCNC.2018.8376979","DOIUrl":"https://doi.org/10.1109/WCNC.2018.8376979","url":null,"abstract":"In opportunistic mobile networks, existing schemes rely on the assumption that data can be entirely transmitted at each contact. However, in an opportunistic mobile network, the transmission probability exponentially decreases as the data size increases. That is, the contact duration in each contact might be insufficient to deliver large data. Therefore, it is reasonable to partition original data into small data chunks and each chunk is forwarded through an opportunistic path. The objective of this paper is to find an optimal data partition strategy where the data delivery ratio is maximized under a given deadline. There is a trade-off in data partitioning. Each small chunk in a path has a higher delivery probability than the original data, and consequently, a shorter delivery latency under the persistent transmission model with re-transmission. However, the destination needs to receive all chunks in multiple paths (a path is a sequence of contacts) to retrieve the data. A delay in any path will lead to a longer delivery latency. We formulate the data partitioning problem and propose solutions in blind flooding. In the blind flooding scenario, we find the optimal data partitioning size. Network coding technique is used to the proposed method to further improve the performance. Extensive experiments on realistic traces show that our scheme achieves a much better performance than those without partitioning.","PeriodicalId":360054,"journal":{"name":"2018 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123456096","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