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Displaying 1-12 out of 12 total
Cell-Broadband-Engine-Based Realtime Wavelet Decomposition for HDTV Video Images and Beyond
Found in: Multimedia and Expo, IEEE International Conference on
By Akihiro Asahara, Munehiro Doi, Yumi Mori, Hiroki Nishiyama, Hiroki Nakano
Issue Date:July 2006
pp. 445-448
The Cell Broadband Engine (CBE) is a novel multi-core microprocessor designed to provide compact and high-performance processing capabilities for a wide range of applications. Real-time image processing applications with parallelism for large amounts of da...
 
Traffic Pattern-Based Content Leakage Detection for Trusted Content Delivery Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hiroki Nishiyama,Desmond Fomo,Zubair Md. Fadlullah,Nei Kato
Issue Date:February 2014
pp. 301-309
Due to the increasing popularity of multimedia streaming applications and services in recent years, the issue of trusted video delivery to prevent undesirable content-leakage has, indeed, become critical. While preserving user privacy, conventional systems...
 
A Framework for Information Propagation in Mobile Sensor Networks
Found in: 2013 IEEE 10th International Conference on Mobile Ad-Hoc and Sensor Systems (MASS)
By Jiajia Liu,Hiroki Nishiyama,Nei Kato
Issue Date:October 2013
pp. 214-221
A common complication for routing in mobile sensor networks is how to efficiently control the forwarding behaviors of relay nodes so as to save their energy consumption and buffer usage while simultaneously satisfy the specified delivery performance requir...
 
Smart FiWi Networks: Challenges and Solutions for QoS and Green Communications
Found in: IEEE Intelligent Systems
By Zubair Md. Fadlullah,Hiroki Nishiyama,Nei Kato,Hirotaka Ujikawa,Ken-Ichi Suzuki,Naoto Yoshimoto
Issue Date:March 2013
pp. 86-91
A smart integration of wireless local area network (WLAN) with passive optical network (PON) technology carefully synchronizes and coordinates different quality-of-service specifications and energy-saving modes so that they can be seamlessly combined to fa...
 
Cluster-Based Certificate Revocation with Vindication Capability for Mobile Ad Hoc Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Wei Liu,Hiroki Nishiyama,Nirwan Ansari,Jie Yang,Nei Kato
Issue Date:February 2013
pp. 239-249
Mobile ad hoc networks (MANETs) have attracted much attention due to their mobility and ease of deployment. However, the wireless and dynamic natures render them more vulnerable to various types of security attacks than the wired networks. The major challe...
 
On the throughput evaluation of wireless mesh network deployed in disaster areas
Found in: 2013 International Conference on Computing, Networking and Communications (ICNC)
By Thuan Ngo,Hiroki Nishiyama,Nei Kato,Yoshitaka Shimizu,Kohei Mizuno,Tomoaki Kumagai
Issue Date:January 2013
pp. 413-417
After disasters such as earthquakes and tsunamis, the network infrastructures might be extremely damaged or destroyed while Internet connection becomes much more necessary. Therefore, deploying networks in disaster areas has received much attention especia...
 
On the optimal transmission distance for power-aware routing in Ad Hoc networks
Found in: 2013 International Conference on Computing, Networking and Communications (ICNC)
By Ahmed E. A. A. Abdulla,Zubair Md. Fadlullah,Hiroki Nishiyama,Nei Kato
Issue Date:January 2013
pp. 519-523
Power-aware routing for battery-powered wireless ad hoc networks is crucial to insure the longevity of such networks. Most contemporary research that attempts to minimize the energy consumption does so via short distance transmissions. However, this transm...
 
A general model for store-carry-forward routing schemes with multicast in delay tolerant networks
Found in: Software Maintenance and Reengineering, European Conference on
By Jiajia Liu,Xiaohong Jiang,Hiroki Nishiyama,Nei Kato
Issue Date:August 2011
pp. 494-500
Delay tolerant networks (DTNs) are sparse and highly mobile wireless ad hoc networks, where no contemporaneous end-to-end path may ever exist at any given time instant, and thus the
 
Effective Delay-Controlled Load Distribution over Multipath Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Sumet Prabhavat,Hiroki Nishiyama,Nirwan Ansari,Nei Kato
Issue Date:October 2011
pp. 1730-1741
Owing to the heterogeneity and high degree of connectivity of various networks, there likely exist multiple available paths between a source and a destination. An effective model of delay-controlled load distribution becomes essential to efficiently utiliz...
 
A Cooperative ONU Sleep Method for Reducing Latency and Energy Consumption of STA in Smart-FiWi Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hiroki Nishiyama,Ko Togashi,Yuichi Kawamoto,Nei Kato
Issue Date:February 2015
pp. 1
Fiber-Wireless (FiWi) network is a classification of network that combines the massive bandwidth of the optical network and the reach of the wireless network. FiWi networks are usually composed of an optical and a wireless component. Since both components ...
 
Dynamic Replication and Forwarding Control Based on Node Surroundings in Cooperative Delay-Tolerant Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hiroki Nishiyama,Asato Takahashi,Nei Kato,Katsuya Nakahira,Takatoshi Sugiyama
Issue Date:February 2015
pp. 1
Delay-Tolerant Networks (DTNs) are a promising network architecture which can provide reliable multi-hop message transmission between participating mobile nodes in an unfavorable environment that is prone to link disruption and disconnection by replicating...
 
An intelligent routing scheme effectively utilizing mass storage embedded on satellites to mitigate network congestions
Found in: Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems (MSWiM '13)
By Hiroki Nishiyama, Nei Kato, Kazuma Kaneko, Naoko Yoshimura, Shinichi Yamamoto, Yuuichi Kawamoto
Issue Date:November 2013
pp. 167-172
Recently, since many kinds of wireless devices have been widely used and a large amount of contents is available on the Internet, a network system that provides adequate services anytime and anywhere is required. In this research, we focus on satellite net...
     
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