7th International Conference on Communications and Networking in China最新文献_第10页

The research of time unified system in smart grid 智能电网时间统一系统的研究

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417453

Lv Yao, Wang Jianjuan, Lu Yunlong

引用次数: 0

An individual-indicator QoE model with test samples and methods for mobile streaming services on smaller size handheld devices 单个指标QoE模型，包含在较小尺寸手持设备上的移动流媒体服务的测试样本和方法

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417474

Jiaqi Xu, Fang Wei, Xi Liu, Tao Wen, Hongyan Yan

引用次数: 0

Performance evaluation of power control algorithm for TV White Space resource in UK 英国电视空白空间资源功率控制算法性能评价

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417580

Nan Wang, Yue Gao, Yue Chen, E. Bodanese, L. Cuthbert

{"title":"Performance evaluation of power control algorithm for TV White Space resource in UK","authors":"Nan Wang, Yue Gao, Yue Chen, E. Bodanese, L. Cuthbert","doi":"10.1109/ChinaCom.2012.6417580","DOIUrl":"https://doi.org/10.1109/ChinaCom.2012.6417580","url":null,"abstract":"The digital switchover plan in the UK, expected to be completed in 2012, is capable of freeing up a total of about 240MHz TV bandwidth. This includes the license-exempt access to TV White Spaces (TVWS) as defined in IEEE 802.22 standards for Wireless Regional Area Network (WRAN). In our previous studies [12], a simulation model based on the existing keep-away region algorithm is first established and verified to explore the potential TVWS resources with the Cognitive Radio technology at any given location in the UK. Then, the newly proposed power control algorithm based on the maximum allowed transmission power is to replace the keep-away region algorithm and improve the availability of a cognitive radio (CR) operation. In this paper, both of these two algorithms' performances are evaluated and compared with the results obtained from Digital UK [13] and a third-party company Wolfbane [14]. Finally, the correctness of the proposed power-control algorithm is validated and proved to have a better performance than the traditional keep-away region algorithm in terms of numbers of available channels. Finally, a comparison between these two algorithms is made in terms of system capacity.","PeriodicalId":143739,"journal":{"name":"7th International Conference on Communications and Networking in China","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116285441","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: 4

Investigation on USB 2.0 in software-defined radio 软件无线电中usb2.0的研究

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417600

Jinghan Zhou, Xin Qi, Xin Su, Haibing Yang

引用次数: 0

A reference signal based beamforming scheme for relay networks with local channel state information 一种基于参考信号的具有本地信道状态信息的中继网络波束形成方案

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417503

Lei Zhang, W. Liu

引用次数: 3

Intelligent decision strategy for adaptive resource management in wireless cognitive network 无线认知网络自适应资源管理的智能决策策略

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417459

Zhenbang Wang, Zhenyong Wang

{"title":"Intelligent decision strategy for adaptive resource management in wireless cognitive network","authors":"Zhenbang Wang, Zhenyong Wang","doi":"10.1109/ChinaCom.2012.6417459","DOIUrl":"https://doi.org/10.1109/ChinaCom.2012.6417459","url":null,"abstract":"With the development of cognitive radio technology, more surrounding cognition information is available to make wireless cognitive network self-adaptive to dynamic conditions of wireless networks. However, due to increasing cognition information, it is an interesting problem to achieve optimal strategies in numbers of adjustable parameters for relatively wide adjustable capacity in resource management of wireless cognitive networks. In this paper, an intelligent decision strategy with learning-reasoning mechanism and decision-evaluation process is proposed to classify, select and optimize the large adjustable parameters for network traffic end-to-end QoS requirements in wireless cognitive networks. Non-Dominated Sorting Genetic Algorithm and Fuzzy Decision Making are introduced in learning-reasoning strategy to abstract cognition information to “knowledge”, and save the “knowledge” into history-case database. Complex Combinatorial Optimization Probability method is used in decision-evaluation process to search for optimal solution of resource management in wireless cognitive networks. By simulations, the performances show that the proposed intelligent decision strategy can guarantee end-to-end QoS in dynamic conditions of wireless cognitive networks.","PeriodicalId":143739,"journal":{"name":"7th International Conference on Communications and Networking in China","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125250156","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 research on vulnerability discovering for router protocols based on fuzzing 基于模糊的路由器协议漏洞发现研究

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417484

Zhiqiang Wang, Yuqing Zhang, Qixu Liu

{"title":"A research on vulnerability discovering for router protocols based on fuzzing","authors":"Zhiqiang Wang, Yuqing Zhang, Qixu Liu","doi":"10.1109/ChinaCom.2012.6417484","DOIUrl":"https://doi.org/10.1109/ChinaCom.2012.6417484","url":null,"abstract":"How to discover router vulnerabilities effectively and automatically is a critical problem to ensure network and information security. Previous research on router security is mostly about the technology of exploiting known flaws of routers. Fuzzing is a famous automated vulnerability finding technology, however, traditional Fuzzing tools are designed for testing network applications or other software. These tools are not or partly not suitable for testing routers. This paper designs a framework of discovering router protocol vulnerabilities, and proposes a mathematical model Two-stage Fuzzing Test Cases Generator (TFTCG) that improves previous methods to generate test cases. We have developed a tool called RPFuzzer based on TFTCG. RPFuzzer monitors routers by sending normal packets, keeping watch on CPU utilization and checking system logs, which can detect DoS, router reboot and so on. RPFuzzer'debugger based on modified Dynamips, which can record register values when an exception occurs. Finally, we experiment on the SNMP protocol, find 8 vulnerabilities,of which there are five unreleased vulnerabilities. The experiment has proved the effectiveness of RPFuzzer.","PeriodicalId":143739,"journal":{"name":"7th International Conference on Communications and Networking in China","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130351053","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: 7

A gradient projection based self-optimizing algorithm for inter-cell interference coordination in downlink OFDMA networks 基于梯度投影的下行OFDMA小区间干扰协调自优化算法

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417551

Xuena Li, Hao Jin, Jiamo Jiang, S. Hou, M. Peng, Gongpu Wang

{"title":"A gradient projection based self-optimizing algorithm for inter-cell interference coordination in downlink OFDMA networks","authors":"Xuena Li, Hao Jin, Jiamo Jiang, S. Hou, M. Peng, Gongpu Wang","doi":"10.1109/ChinaCom.2012.6417551","DOIUrl":"https://doi.org/10.1109/ChinaCom.2012.6417551","url":null,"abstract":"Fractional frequency reuse (FFR) is an inter-cell interference coordination (ICIC) scheme wherein the whole bandwidth is divided into regions using different frequency reuse factors in orthogonal frequency division multiple access (OFDMA) networks. However, it is hard to achieve the balance of cell-edge and cell-center user throughput in practice as all base stations (BS) are configured with static transmission power for each sub-band in traditional FFR. To solve this problem, a gradient projection based self-optimizing (GPB-SO) algorithm for ICIC is proposed to adjust transmission power of each sub-bands set by exchanging the gradient direction information, aiming to maximize the overall network utility. Furthermore, a closed-form of gradient direction is attained to update the transmission power of each BS in a distributed manner. With the simulation results, it is demonstrated that the proposed algorithm not only provides a better tradeoff between spectrum efficiency and cell-edge user throughput, but also increases the system energy efficiency due to interference reduction.","PeriodicalId":143739,"journal":{"name":"7th International Conference on Communications and Networking in China","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130320863","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: 3

Efficient transitive trust model for mobile terminal 移动终端的高效传递信任模型

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417482

Tao Li, A. Hu

引用次数: 1

SG128 multi-probe spherical near-field antenna test range and novel antenna measurements SG128多探头球面近场天线测试范围和新型天线测量

7th International Conference on Communications and Networking in China Pub Date : 2012-08-01 DOI: 10.1109/ChinaCom.2012.6417571

Guohua Li, Hai Chen, Jinhu Chen

引用次数: 1