2nd International Conference on Broadband Networks, 2005.最新文献

Efficiency and throughput analysis of delayed-acknowledgement in WPANs 无线局域网延迟确认的效率和吞吐量分析

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-12-01 DOI: 10.1109/ICBN.2005.1589657

Stanley Liu, H. Rutagemwa, Xuemin Shen, J. Mark, P. Ho

引用次数: 0

Network selection using fuzzy logic 利用模糊逻辑进行网络选择

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589698

S. Kher, Arun Kumar Somani, Rohit Gupta

{"title":"Network selection using fuzzy logic","authors":"S. Kher, Arun Kumar Somani, Rohit Gupta","doi":"10.1109/ICBN.2005.1589698","DOIUrl":"https://doi.org/10.1109/ICBN.2005.1589698","url":null,"abstract":"The peer-to-peer technology offers many advantages, but at the same time, it poses many novel challenges for the research community. Modern peer-to-peer systems are characterized by large scale, poor reliability, and extreme dynamism of the participating nodes, with a continuous flow of nodes joining and leaving the systems. Selection of an optimal network requires estimation of its rank using attributes such as storage, average load, cost, reliability etc. There are multiple networks, each vying for users business by providing them novel services. The user in turn has to decide which network best meets its service requirements and accordingly join a network. In this paper, we propose a model with two ranking schemes, one being network-specific and the other user-specific. The schemes use fuzzy logic to rank different networks based on their attributes. The difference between the two ranking schemes lie in the dynamism offered by them. The user-specific ranking criteria is flexible while the network-specific scheme uses a fixed criteria. The network-specific scheme helps in providing a structure to visualize the overall performance index of the networks. The user-specific scheme is adaptive in the sense that it caters to the specific needs of the users. The simulations performed by us show that the two schemes are light-weight, highly accurate and easily implementable","PeriodicalId":113201,"journal":{"name":"2nd International Conference on Broadband Networks, 2005.","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116925211","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: 36

On parameter tuning of data transfer protocol GridFTP for wide-area grid computing 广域网格计算数据传输协议GridFTP参数调优研究

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589763

T. Ito, H. Ohsaki, M. Imase

{"title":"On parameter tuning of data transfer protocol GridFTP for wide-area grid computing","authors":"T. Ito, H. Ohsaki, M. Imase","doi":"10.1109/ICBN.2005.1589763","DOIUrl":"https://doi.org/10.1109/ICBN.2005.1589763","url":null,"abstract":"In wide-area grid computing, geographically distributed computational resources are connected for enabling efficient and large-scale scientific/engineering computations. In the wide-area grid computing, a data transfer protocol called GridFTP has been commonly used for large file transfers. GridFTP has the following features for solving problems of the existing TCP. First, for accelerating the start-up in TCP's slow start phase and achieving high throughput in TCP's congestion avoidance phase, multiple TCP connections can be established in parallel. Second, according to the bandwidth-delay product of a network, the TCP socket buffer size can be negotiated between GridFTP server and client. However, in the literature, sufficient investigation has not been performed either on the optimal number of TCP connections or the optimal TCP socket buffer size. In this paper, we therefore quantitatively investigate the optimal parameter configuration of GridFTP in terms of the number of TCP connections and the TCP socket buffer size. We first derive performance metrics of GridFTP in steady state (i.e., goodput and packet loss probability). We then derive the optimal parameter configuration for GridFTP and quantitatively show performance limitations of GridFTP through several numerical examples. We also demonstrate validity of our approximate analysis by comparing simulation results with analytic ones","PeriodicalId":113201,"journal":{"name":"2nd International Conference on Broadband Networks, 2005.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117189946","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: 28

Analysis of wavelength-routed WDM networks under heterogeneous environments 异构环境下波长路由WDM网络分析

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589595

Han-You Jeong, S. Seo

{"title":"Analysis of wavelength-routed WDM networks under heterogeneous environments","authors":"Han-You Jeong, S. Seo","doi":"10.1109/ICBN.2005.1589595","DOIUrl":"https://doi.org/10.1109/ICBN.2005.1589595","url":null,"abstract":"Blocking probability is the most widely used performance metric for the design and the dimensioning of wavelength-routed WDM networks. In this paper, we study the blocking performance of such networks under two heterogeneities: traffic heterogeneity and configuration heterogeneity. The former means that different sessions may have different kinds of traffic, and the latter that different nodes and links may have different wavelength conversion capabilities and different number of optical fibers in use, respectively. We also investigate how these heterogeneities impact on the blocking performance of such networks. To achieve these goals, we present a dedicated analytical model for each heterogeneity. First, we present two single-link models for estimating the arrival-point wavelength occupancy distribution on a link with heterogeneous traffic: the FP model and the RP model. Both models are based on the BPP/M/C/C model in which the first two moments of an arbitrary session are matched by those of a birth-death process whose arrival rate linearly varies with the average number of busy wavelengths occupied by its own calls. Next, we derive two recurrence formulas to estimate the number of free wavelengths on a multi-fiber link and the number of free wavelengths after limited-range wavelength conversion. We also present a comprehensive analytical framework for estimating the blocking performance of WDM networks in the presence of both heterogeneities. From the numerical results, we demonstrate that our model is highly accurate in evaluating the blocking probability for a wide range of the heterogeneities discussed above.","PeriodicalId":113201,"journal":{"name":"2nd International Conference on Broadband Networks, 2005.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117346649","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

Using location information for scheduling in 802.15.3 MAC 在802.15.3 MAC中使用位置信息进行调度

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589672

S. B. Kodeswaran, A. Joshi

{"title":"Using location information for scheduling in 802.15.3 MAC","authors":"S. B. Kodeswaran, A. Joshi","doi":"10.1109/ICBN.2005.1589672","DOIUrl":"https://doi.org/10.1109/ICBN.2005.1589672","url":null,"abstract":"In recent years, UWB has received much attention as a suitable physical layer (PHY) for wireless personal area networks (WPANS). UWB allows for low cost, low power, high bandwidth, short reach communication well suited for personal operating spaces. One of the key features offered by UWB is very accurate ranging between a transmitter/receiver pair. The IEEE 802.15.3 is a MAC protocol that has been proposed for WPANs. In this MAC, a combination of CSMA/CA and TDMA is used to achieve channel scheduling. The TDMA component ensures only one transmitter/receiver pair within a piconet is active at any given time thereby ensuring an exclusion region that covers the whole piconet. In this paper, we propose a less stringent scheduling mechanism that allows for concurrent communication between UWB transmitter/receiver pairs within a piconet. Exclusion is necessary only when the communicating entities are close enough such that interference between them would adversely affect successful reception of data at the receivers. The piconet coordinator (PNC) uses the ranging information provided by UWB to accurately position transmitters and receivers. The PNC schedules parallel transmissions between distinct transmit/receive pairs as long as they do not interfere. We present the results of our simulations of our proposed modifications and show that the network throughput can be significantly increased with very little change to the 802.15.3 MAC.","PeriodicalId":113201,"journal":{"name":"2nd International Conference on Broadband Networks, 2005.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124919826","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: 5

Performance analysis of the IEEE 802.11e block ACK scheme in a noisy channel 噪声信道下IEEE 802.11e分组ACK方案的性能分析

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589655

Tianji Li, Q. Ni, T. Turletti, Yang Xiao

引用次数: 79

A subspace approach for DOA estimation of uniform linear arrays with increased element spacing applicable to wideband transmission 一种适用于宽带传输的增大元距均匀线性阵列DOA估计的子空间方法

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589743

A. Shapoury

引用次数: 7

Enhancements to CAN for the application as distributed data storage system in grids 增强CAN作为网格中的分布式数据存储系统的应用

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589765

H. Ristau, D. Versick, D. Tavangarian

引用次数: 2

Reliable optical burst switching for next-generation grid networks 下一代电网可靠的光突发交换

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589774

V. Vokkarane, Qiong Zhang

引用次数: 12

Imager based sensor networks for understanding and creating behaviors 用于理解和创建行为的基于成像仪的传感器网络

2nd International Conference on Broadband Networks, 2005. Pub Date : 2005-10-03 DOI: 10.1109/ICBN.2005.1589710

A. Savvides, Eugenio Culurciello

引用次数: 2