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INFOCOM
2012
IEEE
11 years 6 months ago
Jointly optimal bit loading, channel pairing and power allocation for multi-channel relaying
Abstract—We aim to enhance the end-to-end rate of a general dual-hop relay network with multiple channels and finite modulation formats, by jointly optimizing channel pairing, p...
Mahdi Hajiaghayi, Min Dong, Ben Liang
MP
2007
76views more  MP 2007»
13 years 3 months ago
Universal duality in conic convex optimization
Given a primal-dual pair of linear programs, it is well known that if their optimal values are viewed as lying on the extended real line, then the duality gap is zero, unless both...
Simon P. Schurr, André L. Tits, Dianne P. O...
NETWORKS
2008
13 years 4 months ago
Lagrangian relaxation and enumeration for solving constrained shortest-path problems
Recently published research indicates that a vertex-labeling algorithm based on dynamic-programming concepts is the most efficient procedure available for solving constrained shor...
W. Matthew Carlyle, Johannes O. Royset, R. Kevin W...
EOR
2006
81views more  EOR 2006»
13 years 4 months ago
A note on duality gap in the simple plant location problem
This paper studies the duality gap in the simple plant location problem, and presents general formulas for the gap when certain complementary slackness conditions are satisfied. W...
Nenad Mladenovic, Jack Brimberg, Pierre Hansen
ICASSP
2008
IEEE
13 years 10 months ago
Optimal FDMA over wireless fading mobile ad-hoc networks
We formulate a frequency-division multiple access (FDMA) networking problem for wireless mobile ad-hoc networks (MANETS) to jointly optimize end-to-end user rates, routes, link ca...
Alejandro Ribeiro, Georgios B. Giannakis