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CN
2010
181views more  CN 2010»
15 years 6 months ago
Building a collaborative peer-to-peer wiki system on a structured overlay
The ever growing request for digital information raises the need for content distribution architectures providing high storage capacity, data availability and good performance. Wh...
Gérald Oster, Rubén Mondéjar,...
TKDE
2008
105views more  TKDE 2008»
15 years 6 months ago
Evolutionary Optimization of File Assignment for a Large-Scale Video-on-Demand System
We present a genetic algorithm for tackling a file assignment problem for a large-scale video-on-demand system. The file assignment problem is to find the optimal replication and a...
Jun Guo, Yi Wang, Kit-Sang Tang, Sammy Chan, Eric ...
TWC
2008
238views more  TWC 2008»
15 years 6 months ago
Downlink resource allocation in multi-carrier systems: frequency-selective vs. equal power allocation
In this paper, a dynamic subcarrier and power allocation problem is considered in the context of asymptotic utility maximization in multi-carrier systems. Using the gradient-based...
Hyang-Won Lee, Song Chong
TWC
2008
75views more  TWC 2008»
15 years 6 months ago
Transmission Schemes for Multicarrier Broadcast and Unicast Hybrid Systems
Abstract--Wireless infrastructures can be conveniently categorized into two types: those that provide point-to-point `unicast' connectivity (e.g., cellular) and others that ar...
Hongxiang Li, Bin Liu, Hui Liu
GLOBECOM
2008
IEEE
15 years 7 months ago
Hierarchical Scanning Algorithm for Integrated Mobile and Nomadic Access Systems
—In next generation wireless networks, not only wide area cells to provide moderate data rate with full mobility but also local area cells to support high data rate with local mo...
Jung-Min Moon, Dong-Ho Cho