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VTC
2006
IEEE
171views Communications» more  VTC 2006»
16 years 8 days ago
An Analysis on Uplink OFDMA Optimality
Motivated by the increasing popularity of OFDMA, this paper studies the sum-rate optimality of OFDMA as an uplink multicarrier multiple-access scheme. We address the relationship ...
Hongxiang Li, Hui Liu
GECCO
2007
Springer
235views Optimization» more  GECCO 2007»
16 years 13 days ago
Expensive optimization, uncertain environment: an EA-based solution
Real life optimization problems often require finding optimal solution to complex high dimensional, multimodal problems involving computationally very expensive fitness function e...
Maumita Bhattacharya
SIGMOD
2002
ACM
119views Database» more  SIGMOD 2002»
16 years 6 months ago
Rate-based query optimization for streaming information sources
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
Stratis Viglas, Jeffrey F. Naughton
INFOCOM
2003
IEEE
15 years 11 months ago
Optimal Sliding-Window Strategies in Networks with Long Round-Trip Delays
— A method commonly used for packet flow control over connections with long round-trip delays is “sliding windows”. In general, for a given loss rate, a larger window size a...
Lavy Libman, Ariel Orda
SIGMOD
2006
ACM
116views Database» more  SIGMOD 2006»
16 years 6 months ago
Extensible optimization in overlay dissemination trees
We introduce XPORT, a profile-driven distributed data dissemination system that supports an extensible set of data types, profile types, and optimization metrics. XPORT efficientl...
Olga Papaemmanouil, Yanif Ahmad, Ugur Çetin...