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2009 International Conference on Wireless Networks and Information Systems最新文献

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An Adaptive MAC Scheme to Achieve Throughput Optimization and Airtime Fairness for IEEE 802.11 Multirate Networks 一种实现IEEE 802.11多速率网络吞吐量优化和时延公平的自适应MAC方案
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.83
Jianbing Mao, Y. Mao, S. Leng, Xiang Bai
{"title":"An Adaptive MAC Scheme to Achieve Throughput Optimization and Airtime Fairness for IEEE 802.11 Multirate Networks","authors":"Jianbing Mao, Y. Mao, S. Leng, Xiang Bai","doi":"10.1109/WNIS.2009.83","DOIUrl":"https://doi.org/10.1109/WNIS.2009.83","url":null,"abstract":"In an IEEE 802.11 multirate network, the aggregate system throughput is unfavorably dominated by stations with the lowest data rate. To improve the performance, it is required to provide airtime fairness for stations regardless of their data rates. Unfortunately, the IEEE 802.11 MAC protocol DCF (Distributed Coordination Function) fails to satisfy this requirement. In this paper, we propose an adaptive MAC scheme, named Time Fairness Transmission Control (TFTC), to maximize the system throughput while maintaining airtime fairness among the competing stations. Specifically, making use of the information provided to each station by the carrier sensing mechanism, TFTC dynamically adjusts the transmission probabilities for stations transmitting at each data rate. As opposed to the previous works, our proposed scheme has strong ability to lead the network to work under near optimal state without the requirement of estimating the number of active stations in the network. Performance evaluation results show that the scheme is effective in achieving near to the theoretical maximum system throughput and providing time fair channel allocation among stations with different data rates.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126099489","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
Fault Diagnosis for Analogy Circuits Based on Support Vector Machines 基于支持向量机的类比电路故障诊断
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.107
Yunian Gu, Zhifeng Hu, Tao Liu
{"title":"Fault Diagnosis for Analogy Circuits Based on Support Vector Machines","authors":"Yunian Gu, Zhifeng Hu, Tao Liu","doi":"10.1109/WNIS.2009.107","DOIUrl":"https://doi.org/10.1109/WNIS.2009.107","url":null,"abstract":"When it is hard to obtain training samples, the fault classifier based on support vector machine (SVM) can diagnose faults with high accuracy. It can easily be generalized and put to practical use. In this paper, a fault classifier based on support vector machine (SVM) is proposed for analog circuits. It can classify the faults in the target circuit effectively and accurately. In order to test the algorithm, an analog circuit fault diagnosis system based on SVM is designed for the measurement circuit that approximates the square curve with a broken line. After being trained with practical measurement data, the system is shown to be capable of diagnosing faults hidden in real measurement data accurately. Therefore, the effectiveness of the algorithm is verified.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126857025","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
Study on the Brand Value Promotion of Hotel Service Industry 酒店服务业品牌价值提升研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.71
Fan Linsheng, Xue Pan
{"title":"Study on the Brand Value Promotion of Hotel Service Industry","authors":"Fan Linsheng, Xue Pan","doi":"10.1109/WNIS.2009.71","DOIUrl":"https://doi.org/10.1109/WNIS.2009.71","url":null,"abstract":"For hotel industry, brand is an important means of attracting customers and expanding the market share in the fierce competition. This paper analyzes the composition of hotel brand value, and proposes some specific measures to promote brand value of hotel.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"911 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116370789","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
Measuring the Performance of Link Layer Triggers for the Upward Vertical Handover in Heterogenous Wireless Network 异构无线网络中向上垂直切换链路层触发器性能的测量
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.87
Qing Jiang, Xiteng Zhang, Rong Chai, Qianbin Chen
{"title":"Measuring the Performance of Link Layer Triggers for the Upward Vertical Handover in Heterogenous Wireless Network","authors":"Qing Jiang, Xiteng Zhang, Rong Chai, Qianbin Chen","doi":"10.1109/WNIS.2009.87","DOIUrl":"https://doi.org/10.1109/WNIS.2009.87","url":null,"abstract":"The traditional handoff procedure can not meet the handoff latency demand in the upward vertical handoff. To solve this problem, a novel link layer trigger mechanism based on IEEE 802.21 standard is proposed. The performance of this new handoff scheme is evaluated in this paper. The simulation results show that link layer trigger mechanism can effectively reduce the handoff latency and packet loss. We also investigate the effects of different shrink factor on the performance of 802.21-assisted vertical handoff. It is demonstrated that choosing of a suitable link layer trigger time is of particular importance for the minimization of handoff time difference and the improvement of handoff performance.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"71 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128005426","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 MUSIC-derived Approaches of Angle Estimation for Bistatic MIMO Radar 基于music的双基地MIMO雷达角度估计方法研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.25
Xin Gao, Xiaofei Zhang, G. Feng, Ziqing Wang, Dazhuan Xu
{"title":"On the MUSIC-derived Approaches of Angle Estimation for Bistatic MIMO Radar","authors":"Xin Gao, Xiaofei Zhang, G. Feng, Ziqing Wang, Dazhuan Xu","doi":"10.1109/WNIS.2009.25","DOIUrl":"https://doi.org/10.1109/WNIS.2009.25","url":null,"abstract":"We investigate the topic for the direction of departure (DOD) and direction of arrival (DOA) estimation in bistatic multiple-input-multiple-output (MIMO) radar systems with the exploitation of array invariance. Several MUSIC-derived algorithms for angle estimation in MIMO radar have been presented and compared for their complexity costs against that of ESPRIT. The proposed scheme of multi-invariance multiple signal classification (MI-MUSIC) has the best performance and also can be considered as a generalization of MUSIC. Simulations verify the collaborative usefulness of our algorithm.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121858088","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: 71
An Improved On-demand QoS-Based Routing Protocol for Mobile Ad hoc Networks 一种改进的基于按需qos的移动自组网路由协议
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.82
Gao Qian
{"title":"An Improved On-demand QoS-Based Routing Protocol for Mobile Ad hoc Networks","authors":"Gao Qian","doi":"10.1109/WNIS.2009.82","DOIUrl":"https://doi.org/10.1109/WNIS.2009.82","url":null,"abstract":"In order to satisfy the demand of rapid growth of multimedia applications in mobile ad hoc network (MANET), this paper proposed an improved QoS routing algorithm based on AODV. It adopted the mechanism of intermediate request returning, selected flooding, and local route recovery. Results from extensive performance simulation of the proposed protocol demonstrate that it reduces the control overhead and route searching time, and provides the QoS routing stability in dynamic mobile ad hoc networks.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"97 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128952742","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
Research on Routing Protocols in Ad Hoc Networks Ad Hoc网络中的路由协议研究
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.36
D. Niu, Yan Zhang, Yanjuan Zhao, Mei Yang
{"title":"Research on Routing Protocols in Ad Hoc Networks","authors":"D. Niu, Yan Zhang, Yanjuan Zhao, Mei Yang","doi":"10.1109/WNIS.2009.36","DOIUrl":"https://doi.org/10.1109/WNIS.2009.36","url":null,"abstract":"Wireless Ad Hoc network is a special structure of the wireless communication network, whose communication relies on their cooperation among the nodes and achieve it in the manner of wireless multi-hop. Therefore, this kind of network does not rely on any fixed infrastructure, and has the properties of self-organizing and self-managing. This special network mode makes ad hoc network not only apply to military communications, but also apply to civilian communication such as environmental monitoring, disaster site temporary communications and so on. At the same time, Ad Hoc network has properties of mobile communications and computer networks so it can be seen as a special type of mobile computer communications networks. In this paper, first, we will introduce some basic knowledge about the Ad Hoc networks, including the concept of Ad Hoc networks, characteristics, and then research a number of classic routing protocols of Ad Hoc Network.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132752468","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: 10
Improved Credit Based Scheduling Scheme with QOS in IEEE 802.16 WBA Networks IEEE 802.16 WBA网络中改进的基于信用的QOS调度方案
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.81
C. Chakravarthy, P. Reddy
{"title":"Improved Credit Based Scheduling Scheme with QOS in IEEE 802.16 WBA Networks","authors":"C. Chakravarthy, P. Reddy","doi":"10.1109/WNIS.2009.81","DOIUrl":"https://doi.org/10.1109/WNIS.2009.81","url":null,"abstract":"Packet and flow scheduling algorithms for WiMAX has been a topic of interest for a long time since the very inception of WiMAX networks. WiMAX offers advantages particularly in terms of Quality of service it offers over a longer range atthe MAC level. In our paper, we propose a scheduling scheme that is compatible with 802.16 MAC protocol and can efficiently serve real time bursty traffic with reduced latency and hence improved QOS for real time flows. Simulation results show reduced latency, improved bandwidth utilization and throughput for real time bursty flows compared to the DRR scheme in similar traffic conditions.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114522260","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
Review of Studies of Tag Anti-collision Algorithm in RFID RFID中标签防碰撞算法研究综述
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.63
F. Shuo, Gao-lei Fei, Xue Yan-ming, Li Heng
{"title":"Review of Studies of Tag Anti-collision Algorithm in RFID","authors":"F. Shuo, Gao-lei Fei, Xue Yan-ming, Li Heng","doi":"10.1109/WNIS.2009.63","DOIUrl":"https://doi.org/10.1109/WNIS.2009.63","url":null,"abstract":"With the application of radio frequency identification (RFID) technology in many new areas, its anti-collision problem becomes more obvious each day. This paper introduces the progress of the study in RFID tag anti-collision algorithm, analyzes two major categories of anti-collision algorithms, points out the advantages and disadvantages of these algorithms, and proposes improvements for them.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114899226","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
A Downlink Dynamic Resource Allocation Scheme for Multi-cell OFDMA System 一种多小区OFDMA系统下行链路动态资源分配方案
2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI: 10.1109/WNIS.2009.90
Yueyun Chen, Shuaiqi Guo
{"title":"A Downlink Dynamic Resource Allocation Scheme for Multi-cell OFDMA System","authors":"Yueyun Chen, Shuaiqi Guo","doi":"10.1109/WNIS.2009.90","DOIUrl":"https://doi.org/10.1109/WNIS.2009.90","url":null,"abstract":"A Downlink radio resource allocation scheme based on ICI coordination for multi-cell OFDMA system is proposed. By dynamically determining frequency reuse factor, data rate of the users who have bad channel quality is increased. In order to reduce the packet delay of the users with high average packet arrival rate, the average packet arrival rate is used as a factor of the utility function in scheduling algorithm. Simulation results show that the proposed scheme yields better performance for data services in fast fading channel.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116856019","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
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