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Article
Hot Data Identification with Multiple Bloom Filters: Block-Level Decision vs I/O Request-Level Decision
Hot data identification is crucial for many applications though few investigations have examined the subject. All existing studies focus almost exclusively on frequency. However, effectively identifying hot da...
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Article
A Lookahead Read Cache: Improving Read Performance for Deduplication Backup Storage
Data deduplication (dedupe for short) is a special data compression technique. It has been widely adopted to save backup time as well as storage space, particularly in backup storage systems. Therefore, most d...
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Chapter and Conference Paper
Link Delay Modeling for Two-Way Traffic Road Segment in Vehicular Networks
This paper proposes expected link delay (i.e., data delivery delay) on a two-way road segment for carry-and-forward data delivery schemes in vehicular networks. Recently, a lot of vehicles are able to communic...
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Chapter and Conference Paper
Pantheon: Exascale File System Search for Scientific Computing
Modern scientific computing generates petabytes of data in billions of files that must be managed. These files are often organized, by name, in a hierarchical directory tree common to most file systems. As the...
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Article
Open AccessIn Situ Key Establishment in Large-Scale Sensor Networks
Due to its efficiency, symmetric key cryptography is very attractive in sensor networks. A number of key predistribution schemes have been proposed, but the scalability is often constrained by the unavailabili...
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Article
Proxy-assisted periodic broadcast for video streaming with multiple servers
Large scale video streaming over the Internet requires a large amount of resources such as server I/O bandwidth and network bandwidth. A number of video delivery techniques can be used to lower these requireme...
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Article
Periodic broadcast with dynamic server selection
Service replication is an effective way to address resource requirements and resource availability problem. Dynamic service selection enables clients to choose a server offering the best performance. Proper se...
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Chapter and Conference Paper
An Efficient Video Prefix-Caching Scheme in Wide Area Networks
Web proxy caching provides an effective way to reduce access latency and bandwidth requirement. In particular, prefix caching is considered as an alternative for improving video delivery over wide area network...
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Article
Frame Selection for Dynamic Caching Adjustment in Video Proxy Servers
By caching video data, a video proxy server close to the clients can be used to assist video delivery and alleviate the load of video servers. We assume a video can be partially cached and a certain number of ...
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Article
Performance of a Scalable Multimedia Server with Shared-Storage Clusters
The existing SCSI parallel bus has been widely used in various multimedia applications. However, due to the unfair bus accesses the SCSI bus may not be able to fully utilize the potential aggregate throughput ...
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Article
An Efficient Algorithm for Delay Buffer Minimization
A data flow machine is said to be synchronized if for any vertex u in the underlying data flow graph, all inputs to vertex u arrive at the same time. An unsynchronized data flow machine with an acyclic underly...
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Article
Two Emerging Serial Storage Interfaces for Supporting Digital Libraries: Serial Storage Architecture (SSA) and Fiber Channel-Arbitrated Loop (FC-AL)
Digital libraries require not only high storage space capacity but also high performance storage systems which provide the fast accesses to the data. These requirements can not be efficiently supported with th...
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Chapter
Two Emerging Serial Storage Interfaces for Supporting Digital Libraries: Serial Storage Architecture (SSA) and Fiber Channel-arbitrated Loop(FC-AL)
Digital libraries require not only high storage space capacity but also high performance storage systems which provide the fast accesses to the data. These requirements can not be efficiently supported with th...
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Article
Scalability of Wavelength Division Multiplexed Optical Passive Star Networks with Range Limited Tunable Transceivers
The number of stations attached to a single optical passive star is limited by current state of the art in optical technology. Also, the wavelength range of tunable optical transceivers is limited by current t...
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Article
Building video‐on‐demand servers
We have designed and implemented a controllable software architecture for a Video‐on‐Demand (VOD) server. With the proposed software architecture, many system design issues can be investigated. For example, we...
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Article
Efficient video file allocation schemes for video-on-demand services
A video-on-demand (VOD) server needs to store hundreds of movie titles and to support thousands of concurrent accesses. This, technically and economically, imposes a great challenge on the design of the di...
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Chapter
The Effect of Various ATM Switch Architectures on VBR Video Performance
One of the most important components of an Asynchronous Transfer Mode (ATM) net- work is the switch. Switch design is not a part of the ATM standards so vendors use a wide variety of techniques to build their ...
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Chapter and Conference Paper
High Performance Computing over Switch-Based High-Speed Networks
Communication between processors has long been the bottleneck of distributed network computing. However, recent progress in switch-based high-speed networks including ATM, HIPPI and Fibre Channel may be changi...
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Article
Experiments with video transmission over an Asynchronous Transfer Mode (ATM) network
We present end-to-end performance of digital coded video (JPEG, MPEG-1, and MPEG-2) over a local asynchronuous transfer mode (ATM) network. We discuss performance in terms of both delay (jitter) and frame loss...
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Chapter and Conference Paper
Achieving the shortest clock period by inserting the minimum amount of delay
The performance of a circuit depends on its clock period. The shorter a valid clock period is, the better the performance is. The clock period is tightly related to the difference between the longest propagati...
