Sciweavers

30 search results - page 1 / 6
» How Much Multiuser Diversity is Required for Energy Limited ...
Sort
View
CORR
2010
Springer
120views Education» more  CORR 2010»
13 years 5 months ago
How Much Multiuser Diversity is Required for Energy Limited Multiuser Systems?
Multiuser diversity (MUDiv) is one of the central concepts in multiuser (MU) systems. In particular, MUDiv allows for scheduling among users in order to eliminate the negative effe...
Youngwook Ko, Sergiy A. Vorobyov, Masoud Ardakani
ICC
2009
IEEE
166views Communications» more  ICC 2009»
13 years 11 months ago
How Much Multiuser Diversity Gain is Required over Large-Scale Fading?
Abstract—In multiuser diversity systems, the impact of largescale fading on the total system performance such as link quality and system power has not been widely addressed. Cons...
Youngwook Ko, Sergiy A. Vorobyov, Masoud Ardakani
PIMRC
2008
IEEE
13 years 11 months ago
Multiuser diversity in channels with limited scatterers
—Multiuser diversity scheduling is studied in a single cell system with a limited scatterers channel. The scheduler implements the proportional fairness algorithm with infinite ...
Kimmo Kansanen, Ralf R. Müller
CORR
2008
Springer
80views Education» more  CORR 2008»
13 years 5 months ago
Channel and Multiuser Diversities in Wireless Systems: Delay-Energy Tradeoff
We consider a communication system with multi-access fading channel. Each user in the system requires certain rate guarantee. Our main contribution is to devise a scheduling scheme...
Prasanna Chaporkar, Kimmo Kansanen, Ralf R. Mü...
GLOBECOM
2009
IEEE
13 years 11 months ago
How Much Training Is Needed for Iterative Multiuser Detection and Decoding?
Abstract—This paper studies large randomly spread directsequence code-division multiple-access system operating over a block fading multipath channel. Channel knowledge is obtain...
Mikko Vehkaperä, Keigo Takeuchi, Ralf R. M&uu...