{"title":"Energy-efficient Offloading Policy for Resource Allocation in Distributed Mobile Edge Computing","authors":"Changdong Wang, Chongwu Dong, Jinghui Qin, Xiaoxing Yang, Wushao Wen","doi":"10.1109/ISCC.2018.8538612","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538612","url":null,"abstract":"Mobile edge computing (MEC) is a promising paradigm to integrate computing and communication resources in mobile networks. MEC can improve mobile service quality and enhance Quality of Experience (QoE) by offloading computation tasks to MEC servers. However, a MEC server only can provide limited computational resources for users. In this paper, we consider a mobile edge computing system that provides three offloading policies that are: (i) executing tasks in local device, (ii) offloading tasks to servers in a local region, (iii)offloading tasks to servers in a nearby region. In the policy (iii), mobile user equipment can utilize computational resources of MEC servers in nearby regions to solve the problem of insufficient computational resources in local region servers. We formulate the computation offloading problem as a potential game and propose a Distributed Offloading strategy based on Jacobi algorithm (DOJ) for solving the computation offloading problem in a short period. The simulation results show that our proposed algorithm can reduce overall system costs and guarantee the QoE of users.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123739525","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":"Ballistic Skip Graph: A Skip Graph-Style Constant-Degree Structured Overlay","authors":"Yusuke Aoki, M. Ohnishi, Kazuyuki Shudo","doi":"10.1109/ISCC.2018.8538706","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538706","url":null,"abstract":"Structured overlays enable the construction of application-level networks from multiple nodes, and the decentralized searching of data in the network. One such structured overlay is the skip graph, which supports range queries. Each node in a skip graph has multi-level shortcut links. The degree of each node is O(log N) on a network with N nodes. The paper, proposes Ballistic Skip Graph, a structured overlay that reduces the degree of each node to O(1) by limiting the number of shortcut links to a randomly selected single level while supporting range queries. Because the nodes are not grouped, the proposed method requires no extensive reconfiguration of the network when nodes join or leave. An evaluation experiment confirmed that the average routing table size is confined to a small constant.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125539625","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}
Moufida Hajjaj, A. Mejri, R. Bouallègue, S. Hasnaoui
{"title":"Optimal Uplink Channel Estimation Algorithm for OFDM Based MmWave Massive MIMO Systems","authors":"Moufida Hajjaj, A. Mejri, R. Bouallègue, S. Hasnaoui","doi":"10.1109/ISCC.2018.8538581","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538581","url":null,"abstract":"Practical channel estimation algorithms for millimeter wave massive multiple-input multiple-output (mmWave massive MIMO) systems with huge number of antennas at the base station must achieve high spectrum efficiency. Furthermore, the uplink channel estimation becomes very challenging since the required pilot overhead used for channel estimation and feedback can be prohibitively large. In conventional channel estimation algorithms, the channel model is approximated using a virtual channel model with quantized angles of arrival/departure (AoA/AoD). In this paper, we consider the continually distributed AoA/AoD, we show that the mmWave massive MIMO channels share common cosparsity properties, and we propose a structured analysis compressive sensing (SACS) based algorithm which exploits those common cosparsity properties for channel estimation with low overhead. Simulation results show that our proposal can accurately estimate the channel with low overhead, and is capable of attaining the optimal Cramer-Rao Lower Bound (CRLB).","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125697701","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":"Multi-User Preemptive Scheduling For Critical Low Latency Communications in 5G Networks","authors":"Ali A. Esswie, K. Pedersen","doi":"10.1109/ISCC.2018.8538471","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538471","url":null,"abstract":"5G new radio is envisioned to support three major service classes: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine type communications. Emerging URLLC services require up to one millisecond of communication latency with 99.999% success probability. Though, there is a fundamental trade-off between system spectral efficiency (SE) and achievable latency. This calls for novel scheduling protocols which cross-optimize system performance on user-centric; instead of network-centric basis. In this paper, we develop a joint multi-user preemptive scheduling strategy to simultaneously cross-optimize system SE and URLLC latency. At each scheduling opportunity, available URLLC traffic is always given higher priority. When sporadic URLLC traffic appears during a transmission time interval (TTI), proposed scheduler seeks for fitting the URLLC-eMBB traffic in a multi-user transmission. If the available spatial degrees of freedom are limited within a TTI, the URLLC traffic instantly overwrites part of the ongoing eMBB transmissions to satisfy the URLLC latency requirements, at the expense of minimal eMBB throughput loss. Extensive dynamic system level simulations show that proposed scheduler provides significant performance gain in terms of eMBB SE and URLLC latency.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"176 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120885385","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}
W. Melo, Jusley Arley Oliveira de Tavares, Daniel Oliveira Dantas, Beatriz Trinchão Andrade
{"title":"Improving Feature Point Detection in High Dynamic Range Images","authors":"W. Melo, Jusley Arley Oliveira de Tavares, Daniel Oliveira Dantas, Beatriz Trinchão Andrade","doi":"10.1109/ISCC.2018.8538716","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538716","url":null,"abstract":"Feature Point (FP) detection is a fundamental step in computer vision tasks. Although FP detectors are mostly designed to support Low Dynamic Range (LDR) images as input, interest in High Dynamic Range (HDR) images has increased recently due to their higher precision to register overexposed and underexposed areas in an image. As the detection of FPs is strongly dependent on the illumination of the scene, HDR images have the potential to be more robust than LDR images during FP detection. Known FP detectors, however, do not use the full potential of HDR images. In addition, few works have evaluated the performance of HDR images in this context. In this paper, we propose a modification of FP detectors aiming to improve FP detection on HDR images. To this end, we design a local mask based on the Coefficient of Variation (CV) of sets of pixels, creating thus a new step in FP detection. We compare our approach with popular FP detection methods using a standard evaluation metric, Repeatability Rate (RR) of FPs, and also Uniformity as a proposed new criterion. A dataset of images from scenes affected by camera transformations and substantial illumination changes was used as input. Experimental results show that our proposed algorithms give better Uniformity and RR in most HDR images from the dataset when compared to standard FP detectors. Moreover, they indicate that HDR images present a great potential to be explored in applications that rely on FP detection.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123865860","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":"Game Theoretic Modeling of Interaction Problems in Datacenter Network Environments","authors":"Jun Gong, J. Liao, Zilu Kang","doi":"10.1109/ISCC.2018.8538591","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538591","url":null,"abstract":"Cloud services have been widely deployed on Iarge-scale datacenters by Cloud Service Providers (CSPs) to provide users with better performance and reliability. However, interactions between datacenter selection and multiple traffic engineering (TE) of many physical networks operated by Internet Service Providers (ISPs) may occur, which may lead to performance loss. In this paper, we propose a cooperative approach based on Nash’s bargaining solution (NBS) for CSP and ISPs to improve their performance, which considers both Pareto optimality and fairness. Then, in order to facilitate the actual deployment, we also design a decomposition algorithm to calculate the NBS. Simulations are performed to verify our analysis on different network environments.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124921740","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":"BGCC: a Bloom Filter-based Grouped-Chunk Caching Approach for Information-Centric Networking","authors":"Jiang Zhi, Jun Yu Li, Haibo Wu","doi":"10.1109/ISCC.2018.8538357","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538357","url":null,"abstract":"Packet-level caching is difficult to implement in the traditional caching system. The emergence of Information-centric networking (ICN) has alleviated this problem. However, the chunklevel caching is still facing severe scalability issues. In this paper, we analyze the issues which limit the implementation of chunk-level caching and propose a chunk-level caching optimization approach called BGCC. In BGCC, we reduce the consumption of fast memory by creating the index with group prefixes instead of the chunk prefixes, while the group-level popularity is also used to optimize caching decision. We evaluate the performance of our scheme through extensive simulation experiments regarding a wide range of performance metrics. The experimental results indicate BGCC can reduce the fast memory usage and achieve significant improvement in terms of server load reduction ratio, average hop reduction ratio and average cache hit ratio, compared with current chunk-level caching schemes.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114256689","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}
E. P. Valentini, D. Lieira, L. H. Nakamura, L. Villas, R. Meneguette
{"title":"MOMMA: A Flexible Architecture Based on Fog Computing for Mobility Management","authors":"E. P. Valentini, D. Lieira, L. H. Nakamura, L. Villas, R. Meneguette","doi":"10.1109/ISCC.2018.8538737","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538737","url":null,"abstract":"Due to the emergence of new services offered by intelligent transport systems and vehicular clouds, control of communication between vehicles and the Internet becomes indispensable, in which such control needs to deal with the demand for services provided by such systems, without overloading network technologies. Thus, in this paper, we propose the development of a flexible architecture capable of meeting not only the network demands, but also the quality of service parameters of each class of service that are offered by intelligent transport systems or vehicular clouds through the Internet. Thus, we seek to maximize the flow of information without compromising network performance. For the evaluation of the proposed architecture as well as to make a comparison with three related works in the literature we use the simulator NS3. The results showed that the proposed mechanism reduces packet loss, maximizes the input information and decreases handover time.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122442374","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}
Guilherme da Cunha Rodrigues, R. Calheiros, G. Santos, Vinicius Tavares Guimaraes, L. Granville, L. Tarouco, R. Buyya
{"title":"Unfolding the Mutual Relation Between Timeliness and Scalability in Cloud Monitoring","authors":"Guilherme da Cunha Rodrigues, R. Calheiros, G. Santos, Vinicius Tavares Guimaraes, L. Granville, L. Tarouco, R. Buyya","doi":"10.1109/ISCC.2018.8538570","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538570","url":null,"abstract":"Cloud computing is a suitable solution for professionals, companies, and institutions that need to have access to computational resources on demand. Clouds rely on proper management to provide such computational resources with adequate quality of service, which is established by Service Level Agreements (SLAs), to customers. In this context, cloud monitoring is a critical function to achieve such proper management. Cloud monitoring systems have to accomplish requirements to perform its functions properly, and currently, there are plenty of requirements which includes: timeliness, adaptability, comprehensiveness, and scalability. However, such requirements usually have mutual influence, which is positive or negative, among themselves, and it has prevented the development of complete cloud monitoring solutions. This paper presents a mathematical model to predict the mutual influence between timeliness and scalability, which is a step forward in cloud monitoring because it paves the way for the development of complete monitoring solutions. It complements our previous work that identified the monitoring parameters (e.g., frequency sampling, amount of monitoring data) that influence timeliness and scalability. Evaluations present the effectiveness of the mathematical model based on a comparison of the results provided by the mathematical model and the results obtained via simulation.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134314622","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}
R. Gomes, Arthur Urbano, Francisco R. P. da Ponte, L. Bittencourt, E. Madeira
{"title":"Slicing of Network Resources in Future Internet Service Providers Based on Daytime","authors":"R. Gomes, Arthur Urbano, Francisco R. P. da Ponte, L. Bittencourt, E. Madeira","doi":"10.1109/ISCC.2018.8538725","DOIUrl":"https://doi.org/10.1109/ISCC.2018.8538725","url":null,"abstract":"Nowadays, the Internet is part of our lives, as an essential way of communication and information. However, it suffers from limitations that prevent guarantees of Quality of Service (QoS) to the users. Thus, Internet Service Providers (ISPs) need to evolve, adding new technologies and management strategies, such as Network Virtualization (NV), Software Defined Network (SDN) and Network Function Virtualization (NFV), resulting in the Future Internet Service Providers (FISPs). FISPs slice their network resources among clients and delivered services, where an algorithm to define the structure of each slice is crucial to support Quality of Service (QoS) and resource utilization. Therefore, FISPs should consider the elastic resource utilization of the clients within periods of time through the day. In this context, this paper presents the Per Time Calculation (PETIC) algorithm to define slices based on the daytime bandwidth requirements of the clients. Numerical results suggest that the proposed algorithm defines more suitable slices than existing approaches.","PeriodicalId":233592,"journal":{"name":"2018 IEEE Symposium on Computers and Communications (ISCC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134383237","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}