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VTC
2008
IEEE
156views Communications» more  VTC 2008»
16 years 29 days ago
Channel Asymmetry and Random Time Slot Hopping in OFDMA-TDD Cellular Networks
Abstract—This paper studies the performance of orthogonal frequency division multiple access – time division duplex (OFDMA-TDD) cellular networks when jointly applying dynamic ...
Ellina Foutekova, Patrick Agyapong, Harald Haas
AAAI
2008
15 years 9 months ago
Clustering via Random Walk Hitting Time on Directed Graphs
In this paper, we present a general data clustering algorithm which is based on the asymmetric pairwise measure of Markov random walk hitting time on directed graphs. Unlike tradi...
Mo Chen, Jianzhuang Liu, Xiaoou Tang
APN
2008
Springer
15 years 8 months ago
Symbolic State Space of Stopwatch Petri Nets with Discrete-Time Semantics (Theory Paper)
In this paper, we address the class of bounded Petri nets with stopwatches (SwPNs), which is an extension of T-time Petri nets (TPNs) where time is associated with transitions. Con...
Morgan Magnin, Didier Lime, Olivier H. Roux
DEBS
2008
ACM
15 years 8 months ago
Top-k/w publish/subscribe: finding k most relevant publications in sliding time window w
Existing content-based publish/subscribe systems are designed assuming that all matching publications are equally relevant to a subscription. As we cannot know in advance the dist...
Kresimir Pripuzic, Ivana Podnar Zarko, Karl Aberer
CJ
2007
88views more  CJ 2007»
15 years 6 months ago
Context-aware Timely Information Delivery in Mobile Environments
In mobile environments transmitting information relevant to an event along with notification of the event has been proven to be an effective means of providing revenue enhancing s...
Amit Thawani, Srividya Gopalan, V. Sridhar, Krithi...