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TWC
2008
238views more  TWC 2008»
14 years 11 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
TIT
2011
97views more  TIT 2011»
14 years 6 months ago
Error Exponents for the Gaussian Channel With Active Noisy Feedback
We study the best exponential decay in the blocklength of the probability of error that can be achieved in the transmission of a single bit over the Gaussian channel with an activ...
Young-Han Kim, Amos Lapidoth, Tsachy Weissman
PLDI
2010
ACM
15 years 4 months ago
Green: a framework for supporting energy-conscious programming using controlled approximation
Energy-efficient computing is important in several systems ranging from embedded devices to large scale data centers. Several application domains offer the opportunity to tradeof...
Woongki Baek, Trishul M. Chilimbi
PODS
2007
ACM
203views Database» more  PODS 2007»
15 years 12 months ago
Decision trees for entity identification: approximation algorithms and hardness results
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Samb...
JCO
2006
126views more  JCO 2006»
14 years 11 months ago
Minimum power assignment in wireless ad hoc networks with spanner property
Power assignment for wireless ad hoc networks is to assign a power for each wireless node such that the induced communication graph has some required properties. Recently research ...
Yu Wang 0003, Xiang-Yang Li