2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW)最新文献_第2页

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2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/candarw.2018.00001

引用次数: 0

A Color-Based Cooperative Caching Strategy for Time-Shifted Live Video Streaming 基于颜色的时移实时视频流协同缓存策略

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00030

Hiroki Okada, Takayuki Shiroma, Celimuge Wu, T. Yoshinaga

{"title":"A Color-Based Cooperative Caching Strategy for Time-Shifted Live Video Streaming","authors":"Hiroki Okada, Takayuki Shiroma, Celimuge Wu, T. Yoshinaga","doi":"10.1109/CANDARW.2018.00030","DOIUrl":"https://doi.org/10.1109/CANDARW.2018.00030","url":null,"abstract":"This paper proposes an efficient in-network caching strategy to reduce traffic volume for pseudo-live video streaming networks. Pseudo-live streaming is a technique that records video data as fragmented files in a cache server and reproduces them by continuously combining the fragments. The recorded video data can be treated as static video files. Therefore, in-network caching techniques could efficiently reduce network traffic by carefully managing cache servers and important contents arrangement. The proposed in-network caching strategy tries to cache popular chunking video fragments with taking account of the freshness of the data in a cooperative way among distributed cache servers. We extend a color-based cooperative cache algorithm, which is recently proposed for contents delivery networks, to effectively treat time-shifting video chunks. The extension strategy determines an optimal cache placement before starting content delivery based on the generation of the data and its multiple video quality structures of the real-time streaming. In our experiment, traffic volume is calculated from access probability and the number of hops of communication, and a content arrangement is selected in such a way that the total communication distance in the network becomes the smallest. We conduct a network simulation with traffic patterns that are generated from content access probability of gamma distribution for a three-layer hierarchical structure network. Simulation results show that the traffic volume is reduced up to 50% and 40% compared with conventional LRU and LFU methods, respectively.","PeriodicalId":329439,"journal":{"name":"2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115192580","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 Pipeline Implementation for Dynamic Programming on GPU GPU上动态规划的流水线实现

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00063

Makoto Miyazaki, Susumu Matsumae

引用次数: 4

Performance Evaluation of Dynamic Cell Allocation Cache Using Cycle Accurate Simulator 基于周期精确模拟器的动态小区分配缓存性能评估

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00109

Masato Kitou, Takahiro Sasaki, K. Ohno

引用次数: 1

Load Balancing in P2P Video Streaming Systems with Service Differentiation 基于业务差异化的P2P视频流系统负载均衡

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00105

Yuta Yamada, S. Fujita

{"title":"Load Balancing in P2P Video Streaming Systems with Service Differentiation","authors":"Yuta Yamada, S. Fujita","doi":"10.1109/CANDARW.2018.00105","DOIUrl":"https://doi.org/10.1109/CANDARW.2018.00105","url":null,"abstract":"This paper considers Peer-to-Peer (P2P) video streaming systems with service differentiation, in which the quality level of a video stream is differentiated according to the authority level of the subscribers. In such P2P video streaming systems, peers with high authority level are imposed a heavy load, since high quality video generally consumes more upload capacity. To resolve such problem, we encode video stream by using a layered encoding and organize a overlay for each authority level and deliver the appropriate streams by using more capacity of peers with lower authority level. However, in the method, peers with low authority level are imposed a heavy load, so that latency of forwarding stream correspond to low authority is increased. In this paper, we propose a load balancing method for such P2P systems. In our proposed method, by using more capacity of peers with high authority level, streams corresponded to low authority level are forwarded. so that more peers receive streams within less hop. The performance of the proposed scheme is evaluated by simulation. The result of simulations shows that the latency which peers receive sub-streams with the proposed method is the smallest in all methods.","PeriodicalId":329439,"journal":{"name":"2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124863508","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

AQSS: Accelerator of Quantization Neural Networks with Stochastic Approach 基于随机方法的量化神经网络加速器

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00033

Takeo Ueki, Keisuke Iwai, T. Matsubara, T. Kurokawa

引用次数: 1

A Mass Spring Model for String Simulation with Stress-Strain Handling 考虑应力应变处理的弦模拟质量弹簧模型

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00010

R. Durikovic, E. Siebenstich

引用次数: 1

An Implementation of LLVM Pass for Loop Parallelization Based on IR-Level Directives 基于ir级指令的LLVM循环并行化的实现

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00097

K. Jingu, Kohta Shigenobu, K. Ootsu, Takeshi Ohkawa, T. Yokota

{"title":"An Implementation of LLVM Pass for Loop Parallelization Based on IR-Level Directives","authors":"K. Jingu, Kohta Shigenobu, K. Ootsu, Takeshi Ohkawa, T. Yokota","doi":"10.1109/CANDARW.2018.00097","DOIUrl":"https://doi.org/10.1109/CANDARW.2018.00097","url":null,"abstract":"Currently, multicore processors are widely used, and processing performance can be improved on many machines by exploiting thread level parallelism. However, for parallelizing a program, it takes much time and effort to analyze effect of parallel processing and to rewrite the source code, so sequential programs still remain around the world, and they can not fully bring out performance of multicore processors. To improve execution performance of existing sequential programs by effectively utilizing processing power of multicore processors, it is quite useful to automatically and directly parallelize a machine language code (binary code) by using binary translation. Based on this background, an automatic parallel processing system that parallelizes and optimizes a sequential binary code using LLVM was proposed. In this paper, we introduce parallelization directives for LLVM IR (Intermediate Representation), and implement an LLVM compiler pass for parallel code generation based on the directives. Our research makes it possible to implement analysis and code generation as versatile programs, and to generate an optimal code according to the multiple analysis results. Evaluation results show that the implemented pass can generate a parallelized IR code and can achieve speedup as highly as the parallelization using source code does.","PeriodicalId":329439,"journal":{"name":"2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123693041","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

Integrating TicToc with Parallel Logging 集成TicToc与并行日志

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00028

Yasuhiro Nakamura, H. Kawashima, O. Tatebe

引用次数: 1

On Relationship between Timeout and Latency of Connection Re-establishment for Control Packet Loss Scenario in Bluetooth MANETs 蓝牙manet中控制丢包场景下连接重建超时与延迟的关系

2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW) Pub Date : 2018-11-01 DOI: 10.1109/CANDARW.2018.00016

Temma Ohtani, Eitaro Kohno, Y. Kakuda

{"title":"On Relationship between Timeout and Latency of Connection Re-establishment for Control Packet Loss Scenario in Bluetooth MANETs","authors":"Temma Ohtani, Eitaro Kohno, Y. Kakuda","doi":"10.1109/CANDARW.2018.00016","DOIUrl":"https://doi.org/10.1109/CANDARW.2018.00016","url":null,"abstract":"Bluetooth MANETs, which consist of Bluetooth-enabled terminals, are a prospective methodology for mobile ad hoc networks (MANETs). Since Bluetooth is a connection-oriented and a low-power-consumption communication method, terminals must execute time-consuming connection establishment procedures in advance. We have to solve the following two problems for Bluetooth MANETs: (1) since terminals move within fields, terminals must establish their connection within a limited time. In addition, (2) since the communication area of Bluetooth is narrower than that of other technologies, established connections are easily disrupted. In order to solve problem (1), a low-latency connection establishment method has been proposed. However, there is no countermeasure for problem (2). Therefore, the possibility of rapid re-establishment for connections must be investigated. In this paper, we have proposed a rapid connection re-establishment method for control packet-loss scenarios and have investigated the effect of adjusting the configuration of the connection-establishment timeout parameter. We also have developed a Raspberry Pi-based application for our proposed method and have conducted experiments. We confirmed that our proposed method could re-establish connections in control packet-loss scenarios as the connection-establishment timeout decreases. However, we found that the time it takes to re-establish a connection is significantly long if the connection-establishment timeout configuration is 1 second.","PeriodicalId":329439,"journal":{"name":"2018 Sixth International Symposium on Computing and Networking Workshops (CANDARW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132200631","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