2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)最新文献

Dynamic resource allocation in radio-over-fiber enabled dense cellular networks 无线光纤密集蜂窝网络中的动态资源分配

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-22 DOI: 10.23919/WIOPT.2018.8362822

Bart Post, S. Borst, A. Koonen

{"title":"Dynamic resource allocation in radio-over-fiber enabled dense cellular networks","authors":"Bart Post, S. Borst, A. Koonen","doi":"10.23919/WIOPT.2018.8362822","DOIUrl":"https://doi.org/10.23919/WIOPT.2018.8362822","url":null,"abstract":"Network densification has emerged as a powerful paradigm to boost spectral efficiency and accommodate the continual rise in demand for wireless capacity. The corresponding reduction in cell sizes also results however in greater spatial and temporal uncertainty and variation in traffic patterns and more extreme and unpredictable interference conditions. These features create unprecedented challenges for efficient allocation of spectral resources compared to conventional cellular networks. As a further challenge, the allocation of spectral resources needs to be jointly optimized with the assignment of wavelengths in the optical backhaul of Radio-over-Fiber (RoF) networks, which are increasingly used in dense deployments and indoor environments. Motivated by these issues, we develop online algorithms for joint radio frequency and optical wavelength assignment in RoF networks. The proposed algorithms rely on load measurements at the various access points, and involve configurable thresholds for triggering (re)assignment of spectral resources. We provide a detailed specification of a system implementation, and conduct extensive simulation experiments to examine the behaviour in various scenarios and assess the impact of key parameters. The results in particular demonstrate that the proposed algorithms are capable of maintaining adequate load levels for spatially heterogeneous and time-varying traffic conditions, while providing favourable throughput performance.","PeriodicalId":231395,"journal":{"name":"2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117323296","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

Optimizing data analytics in energy constrained IoT networks 优化能源受限物联网网络中的数据分析

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362855

Apostolos Galanopoulos, G. Iosifidis, T. Salonidis

{"title":"Optimizing data analytics in energy constrained IoT networks","authors":"Apostolos Galanopoulos, G. Iosifidis, T. Salonidis","doi":"10.23919/WIOPT.2018.8362855","DOIUrl":"https://doi.org/10.23919/WIOPT.2018.8362855","url":null,"abstract":"The emergence of delay sensitive and computationally demanding data analytic applications has burdened the core network with huge data transfers and increased computation load. Furthermore, the increasing number of Internet of Things deployments rely significantly on the execution of such applications. We propose an architecture where devices collaboratively execute data analytic tasks in order to improve their execution delay and accuracy. This is possible by exploiting the aggregate computation capabilities of the abundance of small devices. We design an optimization framework where the nodes decide where their data analytic tasks will be executed, in order to jointly optimize their average execution delay and accuracy, while respecting power consumption constraints. We propose a distributed dual ascent solution to the formulated convex problem, so that the nodes can make the outsourcing decisions by exchanging local information. The results indicate that the nodes can achieve better performance when collaborating than when they locally compute the tasks, depending on the network load.","PeriodicalId":231395,"journal":{"name":"2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115336826","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

SIR distribution and scheduling gain of normalized SNR scheduling in Poisson networks 泊松网络中归一化信噪比调度的SIR分布和调度增益

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362871

Koji Yamamoto

引用次数: 2

Multi-attribute selection of maritime heterogenous networks based on SDN and fog computing architecture 基于SDN和雾计算架构的海上异构网络多属性选择

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362876

Tingting Yang, Rui Wang, Zhengqi Cui, Jie Dong, Minghua Xia

{"title":"Multi-attribute selection of maritime heterogenous networks based on SDN and fog computing architecture","authors":"Tingting Yang, Rui Wang, Zhengqi Cui, Jie Dong, Minghua Xia","doi":"10.23919/WIOPT.2018.8362876","DOIUrl":"https://doi.org/10.23919/WIOPT.2018.8362876","url":null,"abstract":"Maritime intelligent transportation system provides intelligent, safe and efficient maritime transport services, which greatly facilitates the applications related to monitoring, safety, infotainment and cargo online management. The Internet of Things (IoT) is especially suitable for the networked communication environment at sea, and drives the development of maritime intelligent transportation on the trend. However, the existing data processing and forwarding methods pose great challenges to Intelligent Transportation Systems (ITS). In particular, realtime multi-type of data adopts different access technologies in wireless communication systems or use the same wireless access technology but belong to different wireless carriers. Utilizing the existing multi-type wireless communication systems, the architecture of the heterogeneous network through inter-system convergence makes multi-system complement to meet the demand of mobile communication services, so as to comprehensively play their respective advantages. In this paper, we consider a multiattribute decision-making method based on Analytic Hierarchy Process (AHP) and Rough Set based on the architecture of maritime wideband communication system with software defined network (SDN) and fog computing architecture. This paper aims to select a feasible network routing scheme for this heterogeneous network, based on multi-attribute of different networks. Finally, we simulate a communication network selection case based on the future maritime communications architecture, and solve the architecture optimization problem through our proposed algorithm. The issue of such network choice necessarily exists in maritime communications architecture, and our tentative assumptions and solutions will be an important basis for such issues.","PeriodicalId":231395,"journal":{"name":"2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131581769","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

Distributed optimization in fog radio access networks — channel estimation and multi-user detection 雾无线接入网络的分布式优化——信道估计和多用户检测

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362821

Qi He, Qi Zhang, Tony Q. S. Quek, Zhi Chen, Shaoqian Li

引用次数: 2

Downlink multi-user MIMO scheduling with performance guarantees 具有性能保证的下行多用户MIMO调度

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362843

N. Prasad, Xiao-Feng Qi

{"title":"Downlink multi-user MIMO scheduling with performance guarantees","authors":"N. Prasad, Xiao-Feng Qi","doi":"10.23919/WIOPT.2018.8362843","DOIUrl":"https://doi.org/10.23919/WIOPT.2018.8362843","url":null,"abstract":"We consider a long-standing open problem pertaining to scheduling over a wideband multi-user downlink. In this problem a base-station (BS) must assign multiple subbands to its served users such that a weighted sum rate metric is maximized subject to sum power and cardinality constraints. On each subband multiple users can simultaneously be scheduled. Such scheduling is complicated by the fact that the rate achieved by a user on any subband assigned to it depends not only on its own channel condition, but on the set of other users co-scheduled on that subband as well. The latter dependence is via the transmission scheme adopted by the BS in order to simultaneously serve multiple users on the same subband. This problem has received wide attention for over a decade and while numerous heuristics have been designed, there is no known algorithm that offers provable constant-factor worst-case guarantee. In this paper we obtain an important result which demonstrates that when the transmitter employs capacity-optimal dirty paper coding, constant-factor approximation guarantee can be achieved via simple algorithms. Indeed, we show that for a wideband scheduling problem in which a permissible set of user groups is specified as input, a simple deterministic algorithm yields a constant-factor approximation guarantee. Further, for the generalized case where any user group subject to a cardinality constraint is permissible, a greedy algorithm yields a constant-factor guarantee over certain practically relevant regimes.","PeriodicalId":231395,"journal":{"name":"2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122128039","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

Temporal correlation of interference under spatially correlated shadowing 空间相关阴影下干扰的时间相关性

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362869

Tatsuaki Kimura, H. Saito

引用次数: 4

Waze-inspired spectrum discovery via smartphone sensing data fusion 通过智能手机传感数据融合发现受waze启发的频谱

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362852

Sen Lin, Junshan Zhang, Lei Ying

{"title":"Waze-inspired spectrum discovery via smartphone sensing data fusion","authors":"Sen Lin, Junshan Zhang, Lei Ying","doi":"10.23919/WIOPT.2018.8362852","DOIUrl":"https://doi.org/10.23919/WIOPT.2018.8362852","url":null,"abstract":"We study Waze-inspired spectrum discovery, where the cloud collects the spectrum sensing results from many smartphones and predicts location-specific spectrum availability based on information fusion. Observe that with limited sensing capability, each smartphone can sense only a limited number of channels; and further, the more channels each smartphone senses, the less accurate the sensing results would be. To develop a comprehensive understanding, we cast the spectrum discovery problem as a matrix recovery problem, which is different from the classical matrix completion problem, in the sense that it suffices to determine only part of the matrix entries in the matrix recovery formulation. It is shown that the widely-used similarity-based collaborative filtering method would not work well because it requires each smartphone to sense too many channels. With this motivation, we propose a location-aided smartphone data fusion method and show that the channel numbers each smartphone needs to sense could be dramatically reduced. Moreover, we analyze the partial matrix recovery performance by using the location-aided data fusion method, and numerical results corroborate the intuition that with each smartphone sensing more channels, the recovery performance improves at first but then degrades beyond some point because of the decreasing sensing accuracy.","PeriodicalId":231395,"journal":{"name":"2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127169517","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

Robustness of interdependent geometric networks under inhomogeneous failures 非齐次失效下相互依赖几何网络的鲁棒性

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362877

Khashayar Kamran, Jianan Zhang, E. Yeh, E. Modiano

引用次数: 6

Investigation of area spectral efficiency in indoor wireless communications by blockage models 基于阻塞模型的室内无线通信区域频谱效率研究

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) Pub Date : 2018-05-07 DOI: 10.23919/WIOPT.2018.8362873

M. Müller, Stefan Schwarz, M. Rupp

引用次数: 5