{"title":"A multiple APs cooperation access scheme for energy efficiency in UUDN with NOMA","authors":"Yiming Liu, Xi Li, Hong Ji, Heli Zhang","doi":"10.1109/INFCOMW.2017.8116494","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116494","url":null,"abstract":"With the continuous increase of mobile Internet traffic, the user-centric ultra-dense network (UUDN) is proposed as one of the promising solutions to provide very high area throughput density and flexible access service for users. The limited radio resources cause serious competition among numerous APs. Thus, Non-orthogonal multiple access (NOMA), which supports multiple signals transmission on the same frequency resource, is introduced into UUDN. Then, it is an interesting and still open problem on how to organize multiple APs to serve one user in NOMA-based UUDN. In this paper, we propose an access scheme by grouping multiple APs cooperatively to provide a user-centric access service. Firstly, a group evaluation model is set up for organizing multiple APs into AP Group (APG) to provide access service for each user. Then, the resource allocation problem is formulated as a mix-integer non-linear programming (MINP) problem to maximize the system energy efficiency (EE), which is hard to tackle. For tractability purpose, we transform this problem as a differ convex problem(DCP) and propose iterative algorithms to obtain a feasible solution. Extensive simulation results are analyzed to demonstrate the significant performance improvement compared to the existing schemes.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123733670","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}
{"title":"Effective and scalable repackaged application detection based on user interface","authors":"Meiqi Lin, Dafang Zhang, Xin Su, Tinghao Yu","doi":"10.1109/INFCOMW.2017.8116343","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116343","url":null,"abstract":"The app repackaging has became one of the most serious problems on Android platform nowadays. In the past, most of studies focus on the code detection, which deals with the billion opcodes, thus time consumption is expensive. Besides, it lacks the resistance to code obfuscation and hardening technology thus accuracy will easily be affected. Recently, UI-based detection was proposed. Some dynamic UI-based approaches have shown their effectiveness on repackaging detection, while all of them need to execute each app to obtain features, so it's not scalable for large apps repository analysis. In this paper, we proposed an efficient and simple approach to scalable detection, which is based on static UI features and includes two phase detection. In the coarse-grained phase, we proposed an effective dynamic selection algorithm, which is more accurate and efficient than the fixed threshold. In the fine-grained phase, we detect repackaged apps using entropy. Experimental results show that our proposed approach has a better performance on repackaged apps detection.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125390578","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}
Yuanjun Yao, Q. Cao, J. Chase, P. Ruth, I. Baldin, Yufeng Xin, A. Mandal
{"title":"Slice-based network transit service: Inter-domain L2 networking on ExoGENI","authors":"Yuanjun Yao, Q. Cao, J. Chase, P. Ruth, I. Baldin, Yufeng Xin, A. Mandal","doi":"10.1109/INFCOMW.2017.8116468","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116468","url":null,"abstract":"The GENI network testbed was designed to enable experimentation with network protocols by offering the capability to construct virtual networks at the link layer (L2). GENI users build virtual networks in their GENI slices that span resources on multiple GENI aggregates, linked by L2 network circuits from network fabric providers (e.g., Internet2). This paper summarizes new features for cross-slice stitching in the ExoGENI deployment. They enable slice owners to create L2 links crossing slice boundaries within ExoGENI racks (OpenStack cloud sites), including links to slices owned by other tenants. Like other operations on virtual networks in ExoGENI, cross-slice stitching is dynamic and programmatically controlled. Users can adapt the network topologies of their slices and their interconnections with other slices over time. Cross-slice stitching expands the potential of GENI as a platform for inter-domain network experimentation, including tenant slices that provide high-speed network-based services to other slices. This paper reports on a simple demonstration experiment for ExoGENI cross-slice stitching: a network transit service that runs within a slice, manages a shared circuit topology on behalf of customer slices that link to it, and routes customer traffic over its shared network backbone topology. This experiment shows the potential of cross-slice stitching to address a key limitation of GENI: the cost and limited availability of high-speed network circuits for use within GENI virtual networks.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125412172","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}
{"title":"Outage analysis of massive MIMO system","authors":"Ganlin Zhao, Q. Liang","doi":"10.1109/INFCOMW.2017.8116402","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116402","url":null,"abstract":"In this paper, we investigates shadow fading impact on a multi-user massive multiple-input-multiple-output (MIMO) system. By deploying a large antenna array on the base station, the random channel vectors between users and base station antennas become pairwise orthogonal. This important property of massive MIMO makes small scale fading effect asymptotically vanish while large scale fading still remains. Based on this fact, we analyze the uplink achievable rate and cell coverage area under outage constraint considering log-normal shadow fading effect for both single-cell and multi-cell scenarios. Numerical results are used to evaluate the performance in the presence of shadow fading.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"143 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888224","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}
{"title":"Poster abstract: Feasibility of floating content in VANETs","authors":"Gaetano Manzo, G. Rizzo","doi":"10.1109/INFCOMW.2017.8116531","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116531","url":null,"abstract":"VANETs can benefit by using an infrastructure-less model such as Floating Content (FC) in absence of infrastructures or as support to these latter. This work presents FC performances in vehicular context by using Random Waypoint mobility model.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121072877","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}
{"title":"On optimizing power allocation and power splitting for MISO SWIPT systems with heterogeneous users","authors":"Haizhen Liu, Yanrong Peng, Desheng Wang, Xiaoqiang Ma, Yang Yang, Yanyan Wu, Cong Zhang","doi":"10.1109/INFCOMW.2017.8116441","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116441","url":null,"abstract":"In this paper, we study the power allocation and power splitting problem for simultaneous wireless information and power transfer (SWIPT) in a multi-user MISO broadcast system, in which there are two types of single-antenna users: traditional users that only receive information and modern users that receive information and energy simultaneously from a multi-antenna base station via power splitting. We aim to maximize the minimum signal to interference plus noise ratio (SINR) of the users by jointly designing the power allocation at the transmitter and the power splitting strategy at the receivers under the maximum transmit power and the minimum energy harvesting constraints. In specific, we first apply the techniques of semidefinite relaxation (SDR) and zero-forcing (ZF) to solve the non-convex problems. Then we apply the zero forcing dirty paper coding (ZF-DPC) technique to eliminate the multi-user interference and derive the optimal solution in closed-form. Numerical results show that ZF-DPC provides higher achievable minimum SINR than SDR and ZF in most cases.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117252234","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}
{"title":"Channel estimation and signal reconstruction for massive MIMO with non-orthogonal pilots","authors":"Pengxiang Li","doi":"10.1109/INFCOMW.2017.8116401","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116401","url":null,"abstract":"This paper analyzes the minimum mean square error (MMSE) channel estimation for a target terminal in a singlecell massive multiple-input multiple-output (MIMO) system with non-orthogonal pilots. To minimize the sum mean square error (SMSE) of all terminals, the correlation between the available pilot sequences should be as weak as possible. Based on this conclusion, when the pilot process is long enough, the orthogonal Procrustes principle (OPP) is proposed directly to reconstruct mutually orthogonal pilot sequences. When the pilot process is not long enough, the optimal pilot sequences are reconstructed through an additional block matrix method. If the number of base station (BS) antennas is high but finite, simulation results verify the effectiveness of the reconstructed pilot sequences in obtaining better system performance.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116207117","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}
{"title":"HTTP adaptive streaming with indoors-outdoors detection in mobile networks","authors":"S. Mekki, Theodoros Karagkioules, S. Valentin","doi":"10.1109/INFCOMW.2017.8116457","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116457","url":null,"abstract":"In mobile networks, users may lose coverage when entering a building due to the high signal attenuation at windows and walls. Under such conditions, services with minimum bit-rate requirements, such as video streaming, often show poor Quality-of-Experience (QoE). We will approach this problem in two steps. First, we present a Bayesian detector that combines measurements from two Smartphone sensors to decide if a user is inside a building or not. Second, we extend a widely-used HTTP adaptive streaming (HAS) algorithm to take coverage classification into account. Measurements in a typical office environment show high accuracy for the presented detector and superior QoE for the proposed HAS algorithm.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126173708","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}
Min Jia, Zhiying Wu, Qing Guo, Xuemai Gu, Naitong Zhang
{"title":"Peak to average power ratio suppression method joint orthogonal and non-orthogonal scheme","authors":"Min Jia, Zhiying Wu, Qing Guo, Xuemai Gu, Naitong Zhang","doi":"10.1109/INFCOMW.2017.8116490","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116490","url":null,"abstract":"With the rapid development of wireless communication, the spectrum resources are increasingly scarce, and the limited utilization of spectrum resources has become a popular research, especially in the 5G mobile communication system. Some efficient frequency division multiplexing systems, such as SEFDM (Spectrally Efficient Frequency Division Multiplexing) system, can improve spectrum utilization by the further compression of the distance between sub-carriers based on OFDM carrier structure. This idea of further compression bands will largely solve the problem of scarce spectrum resources in the future. However, due to the further compression of the sub-carrier spacing, the PAPR (peak to average power ratio) is larger than that of traditional OFDM system. In this paper, a method of PAPR suppression for joint orthogonal and non orthogonal spectrally efficient frequency division multiplexing based on SEFDM in the transmitter is proposed, which can restrain the PAPR (peak-to-average ratio) of the transmission system under the condition of spectrally efficient spectrum utilization so as to improve the system performance. The simulation result shows that the PAPR of the system presented in this paper is 2 to 3 dB lower than that under the traditional scheme in a certain interval.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"74 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120880524","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}
{"title":"A PCA-based modeling method for wireless MIMO channel","authors":"Xiaochuan Ma, Jian-hua Zhang, Yuxiang Zhang, Zhanyu Ma, Yu Zhang","doi":"10.1109/INFCOMW.2017.8116491","DOIUrl":"https://doi.org/10.1109/INFCOMW.2017.8116491","url":null,"abstract":"Geometry-based stochastic model (GBSM) of multiple input multiple output (MIMO) channel describes the channel impulse response (CIR) in the sense of rays and clusters, which obey the empirical distributions. Thus, the correlation between MIMO sub-channels is not explicitly defined, which makes it difficult for GBSM to predict channel capacity accurately. Facing the increased antenna number of massive MIMO for fifth generation (5G) communication, we propose a channel modeling method using principal component analysis (PCA). This method takes advantage of the hidden features and structures extracted from the measured channel data, combining the information of the scenario and antenna configurations, to reconstruct the amplitude and phase of the CIR respectively. The sparse features and structures can efficiently support the high antenna number of massive MIMO. By the proposed scheme, the accuracy of 56 × 32 MIMO capacity improves 12.8% compared with the GBSM model.","PeriodicalId":306731,"journal":{"name":"2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127064476","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}