Sciweavers

20 search results - page 1 / 4
» Optimal Resource Allocation in the OFDMA Downlink with Feedb...
Sort
View
GLOBECOM
2009
IEEE
13 years 11 months ago
Optimal Resource Allocation in the OFDMA Downlink with Feedback of Buffer State Information
—With the advent of new applications, one of the primary applications supported in downlink cellular systems is streaming video. QoS for streaming video entails data transmission...
Rajiv Agarwal, John M. Cioffi
PIMRC
2008
IEEE
13 years 11 months ago
Resource allocation in OFDMA downlink with reduced feedback overhead
— Consider the problem of resource allocation on the downlink of a cellular OFDMA system. A fairness constraint is defined by a minimum data rate, a maximum bit-error rate and a...
Ayman Alsawah, Inbar Fijalkow
TWC
2008
121views more  TWC 2008»
13 years 4 months ago
Optimal Downlink OFDMA Resource Allocation with Linear Complexity to Maximize Ergodic Rates
OFDMA resource allocation assigns subcarriers and power, and possibly data rates, to each user. Previous research efforts to optimize OFDMA resource allocation with respect to comm...
Ian C. Wong, Brian L. Evans
JSAC
2008
110views more  JSAC 2008»
13 years 4 months ago
Low complexity resource allocation with opportunistic feedback over downlink OFDMA networks
Abstract--Optimal tone allocation in downlink OFDMA networks is a non-convex NP-hard problem that requires extensive feedback for channel information. In this paper, two constantco...
Rajiv Agarwal, Vinay R. Majjigi, Zhu Han, Rath Van...
GLOBECOM
2009
IEEE
13 years 11 months ago
Downlink Mobile OFDMA Resource Allocation with Minimum User Rate Requests
— The problem of resource allocation (RA) in a downlink OFDMA system with minimum user rate requests is examined under the realistic scenario of partial (imperfect) channel state...
Stelios Stefanatos, Christos Papathanasiou, Nikos ...