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2012 Computing, Communications and Applications Conference最新文献

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IoT operations management and traffic analysis for Future Internet 面向未来互联网的物联网运营管理与流量分析
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154018
Kai-Di Chang, Jiann-Liang Chen, Chi-Yuan Chen, H. Chao
{"title":"IoT operations management and traffic analysis for Future Internet","authors":"Kai-Di Chang, Jiann-Liang Chen, Chi-Yuan Chen, H. Chao","doi":"10.1109/COMCOMAP.2012.6154018","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154018","url":null,"abstract":"In recent years, Internet of Things (IoT) has become the hottest issues of Future Internet. It is the most important concept of Future Internet for providing a common global IT Platform to combine seamless networks and networked things. However, there is a lack of common fabric for integrating IoT with current Internet. That results the service providers and operators have no definite specification to follow. In this study, we construct a simulated bootstrap platform to provide the discussion of open challenges and solutions for deploying IoT in Future Internet. The service providers and operators can estimate their migration to IoT by referring to our experience and experiment results.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116110074","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
Energy optimization for mobile nodes in a cluster tree IEEE 802.15.4/ZigBee network IEEE 802.15.4/ZigBee网络簇树中移动节点的能量优化
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154866
C. Chaabane, A. Pegatoquet, M. Auguin, Maher Ben Jemaa
{"title":"Energy optimization for mobile nodes in a cluster tree IEEE 802.15.4/ZigBee network","authors":"C. Chaabane, A. Pegatoquet, M. Auguin, Maher Ben Jemaa","doi":"10.1109/COMCOMAP.2012.6154866","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154866","url":null,"abstract":"IEEE 802.15.4 proposes a cluster-tree topology to organize a network and to support energy efficient data routing. In this paper, we propose a new approach to manage mobility by adapting this topology. Our approach is based on the link quality indicator (LQI) metric. It aims at anticipating the loss of the association between coordinators and mobile nodes. Hierarchical addresses are attributed to coordinators regarding their position in the network. Then, a speculative algorithm is proposed to choose the next coordinator of association. In this paper, we focus on the consumed energy average and the changing coordinator procedure delay average of moving nodes in the network.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133015455","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: 18
PIC decoding algorithm for Quasi-Orthogonal distributed STBC with non-binary LDPC code 非二进制LDPC码拟正交分布STBC的PIC译码算法
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154794
Yier Yan, M. Lee
{"title":"PIC decoding algorithm for Quasi-Orthogonal distributed STBC with non-binary LDPC code","authors":"Yier Yan, M. Lee","doi":"10.1109/COMCOMAP.2012.6154794","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154794","url":null,"abstract":"In this work, we extend the partial interference cancellation (PIC) group decoding algorithm [1] to the distributed Quasi-Orthogonal space time block code (STBC) with non-binary low density parity check code (LDPC) in Amplify-and-Forward (AF) relay networks. A Gaussian based detection is proposed to reduce the decoding complexity in this paper. The complexity involved grows linearly with the number of relay nodes and size of Galois Field. The simulation result shows that the Gaussian based detection is reasonable to employ in this system.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128111150","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: 0
Unidirectional flow throughput enhancement through Physical-Layer Network Coding 通过物理层网络编码增强单向流吞吐量
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154004
S. Maeouf, B. Hamdaoui, M. Guizani
{"title":"Unidirectional flow throughput enhancement through Physical-Layer Network Coding","authors":"S. Maeouf, B. Hamdaoui, M. Guizani","doi":"10.1109/COMCOMAP.2012.6154004","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154004","url":null,"abstract":"The increasing demands for high data rates necessitate the development of faster schemes of exchanging information along wireless communication links. Physical-Layer Network Coding (PNC) is a promising technique that can improve the achievable data flow rates through higher packet transmission rates, thereby increasing the overall throughput. In this paper, we study the performance of the PNC transmission technique in unidirectional linear flow networks, and compare it with that of the traditional transmission technique. We first derive the bit-error rate (BER) that the PNC transmission scheme achieves, and then using that, we evaluate the end-to-end flow throughput of unidirectional flows. Our results show that PNC has a great potential for enhancing the achievable throughput, especially under medium to high signal-to-noise ratios. We also validate the derived BER results using simulations.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130524306","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: 0
Dynamic load balancing mechanism based on cloud storage 基于云存储的动态负载均衡机制
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154011
T. Wu, Wei-Tsong Lee, Yu-San Lin, Yih-Sin Lin, Hung-Lin Chan, Jhih-Siang Huang
{"title":"Dynamic load balancing mechanism based on cloud storage","authors":"T. Wu, Wei-Tsong Lee, Yu-San Lin, Yih-Sin Lin, Hung-Lin Chan, Jhih-Siang Huang","doi":"10.1109/COMCOMAP.2012.6154011","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154011","url":null,"abstract":"Due to extensive coverage and domains of cloud computing-based architecture, most users saves and access highly similar data because of user habits and available resources. Supposing the data stored in the storage devices is of high duplication and similarity, the system administrator cannot guarantee that every node (peer) in the cloud computing system can maintain the best status for data integration. Moreover, when the number of nodes keeps increasing, the number of files will be multiplied, which results to not only the system administrator's heavy workload, but also the waste of hardware resources. Finally, the flexibility and quickness of cloud storage system is gone, and what left is a lot of duplicate and redundant data. Therefore, in order to avoid the system burden caused by duplicate data, we propose novel data center management architecture: Index Name Server (INS), which integrates de-duplication and access point selection optimization techniques to enhance the performance of the cloud storage system. With the attempt to attain load balancing, we use several specific INS parameters to dynamically monitor the parameters, like IP information and busy level index, to avoid the network congestion or the long waiting time during data transmission.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"401 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131714494","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: 60
Non Binary SC-FDMA for 3GPP LTE uplink 非二进制SC-FDMA 3GPP LTE上行链路
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154798
M. R. Islam, M. Irfan, N. Ullah, S. Ullah, S. M. Fahim, I. Azad
{"title":"Non Binary SC-FDMA for 3GPP LTE uplink","authors":"M. R. Islam, M. Irfan, N. Ullah, S. Ullah, S. M. Fahim, I. Azad","doi":"10.1109/COMCOMAP.2012.6154798","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154798","url":null,"abstract":"Single Carrier Frequency Division Multiple Access (SC-FDMA) is a multiple access scheme that uses DFT spreading prior to OFDM modulation to map the signal from each user to a subset of the available subcarriers. That has similar performance and almost the same overall structure as those of an OFDMA system. Its advantage over OFDMA is that the SC-FDMA signal has lower peak-to-average power ratio (PAPR). SC-FDMA has drawn great attention as an attractive alternative to OFDMA, especially in the uplink communications where lower PAPR greatly benefits the mobile terminal in terms of transmitted power efficiency. In this paper, we have given the proposal of Non Binary SC-FDMA, replacing binary number by octal number system. The most prominent result that we have obtained using non-binary SC-FDMA, compared to binary case is further reduction of BER and peak power of SC-FDMA signals which have been shown by mathematical analysis, and are simulated for different channels using Interleaved FDMA (IFDMA), and localized FDMA (LFDMA).","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115382538","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
Kuhn-tucker conditions for nuclear norm optimization methods for interference alignment 干涉对准核范数优化方法的Kuhn-tucker条件
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6153997
Aamir Shahzad, Rongke Liu
{"title":"Kuhn-tucker conditions for nuclear norm optimization methods for interference alignment","authors":"Aamir Shahzad, Rongke Liu","doi":"10.1109/COMCOMAP.2012.6153997","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6153997","url":null,"abstract":"For designing optimized beamforming and zero forcing matrices for interference alignment, the usual way is to minimize the leakage interference. From the feasibility conditions of interference alignment, we have established equivalent conditions involving ranks of the interference and desired signal matrices and have proposed optimization of beamforming and zero-forcing matrices using ranks. Since minimization of rank of a matrix is a non-convex problem, it is approximated by a convex envelop of the rank which is the nuclear norm of the matrix. To maximize sum degrees of freedom for K users, we minimize the nuclear norm of sum of all interferences or simply minimizing the maximum nuclear norm of all interference matrices from all users. The nuclear norm of the desired signal matrix is constrained to be equal to the desired degrees of freedom, which guarantees a full rank matrix. We have developed the necessary and sufficient Kuhn-Tucker conditions for the optimization problems. We have also shown the convexity of our proposed optimization problems.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121818619","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 novel workflow based data processing platform as a service 一种新颖的基于工作流的数据处理平台即服务
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154858
Ming Xu, Feng Xie, Haohan Wang, Zhen Chen
{"title":"A novel workflow based data processing platform as a service","authors":"Ming Xu, Feng Xie, Haohan Wang, Zhen Chen","doi":"10.1109/COMCOMAP.2012.6154858","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154858","url":null,"abstract":"This paper presents a novel platform as a workflow engine service which helps users to utilize cloud computing for addressing problems of large scale data processing without knowledge of underlying configuration details for computing applications. Our platform provides elastic resources for workflow applications to ensure that users leverage resources efficiently with the consideration of their budgets. To achieve this goal, we propose a cost-oriented scheduling strategy to guarantee workflow applications to match appropriate resources and to be scheduled in a minimum makespan, These workflows consist of serial and parallel tasks. In addition, we discuss the architecture and the key modules of our platform.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115048721","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
On the numerical simulation of reactions induced by radiation 辐射诱导反应的数值模拟
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154873
A. Negrón-Mendoza, D. Frias-Suarez, S. Ramos
{"title":"On the numerical simulation of reactions induced by radiation","authors":"A. Negrón-Mendoza, D. Frias-Suarez, S. Ramos","doi":"10.1109/COMCOMAP.2012.6154873","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154873","url":null,"abstract":"This article concerns with the implementation of a computational framework for numerical simulations of the kinetics of reactions induced by radiation via water radiolysis in iron salts and the comparison with experimental results which allowed the study of the effect of low temperatures in such contexts. A clear dependence of the absorbed dose with the temperature was observed for the iron salt, in particular at liquid nitrogen temperature. This model has a temperature-dependent source term that is a linear function of the radiation dose intensity. Finally, the agreement of the theoretical predictions with the experimental results suggests that the model is reliable for predicting the behavior of the frozen solutions not addressed experimentally in this paper for dose evaluations. These features make it attractive for application to different samples and circumstances.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131466626","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: 0
A power-saving scheduling algorithm for mixed multicast and unicast traffic in MBSFN 一种MBSFN中单播和组播混合流量的节能调度算法
2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154772
Chaoan Wu, Xuekang Sun, Tiankui Zhang
{"title":"A power-saving scheduling algorithm for mixed multicast and unicast traffic in MBSFN","authors":"Chaoan Wu, Xuekang Sun, Tiankui Zhang","doi":"10.1109/COMCOMAP.2012.6154772","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154772","url":null,"abstract":"In this paper, A power-saving scheduling algorithm (PSA) for mixed multicast and unicast traffic is proposed in multicast and broadcast single frequency network (MBSFN). This algorithm is designed on the purpose of reducing the terminal's energy consumption and improving system capacity. By MBSFN area scheduling scheme the throughput of multicast users is increased. And the users' energy consumption is reduced by decreasing the transition times between sleeping and active status in the use of discontinuous reception (DRX) mechanism which is applied for terminal's battery power saving in LTE. The simulation results show that the proposed strategy gains an improvement both in system throughput and the terminal's energy efficiency.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132691238","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: 21
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