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» Max-matching diversity in OFDMA systems
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IWCMC
2006
ACM
13 years 11 months ago
Performance evaluation of joint downlink scheduling in multi-cellular OFDMA systems based on IEEE 802.16a
The employment of the OFDMA transmission technique in broadband radio systems shows several benefits. Especially the exploitation of multi-user diversity with the help of sophisti...
Michael Einhaus, Ole Klein, Bernhard Walke, Daniel...
ICC
2008
IEEE
163views Communications» more  ICC 2008»
13 years 11 months ago
Network Coding Aware Dynamic Subcarrier Assignment in OFDMA Wireless Networks
—Taking advantage of the frequency diversity and multiuser diversity in OFDMA based wireless networks, dynamic subcarrier assignment mechanisms have shown to be able to achieve m...
Xinyu Zhang, Baochun Li
TWC
2010
12 years 11 months ago
Bandwidth exchange: an energy conserving incentive mechanism for cooperation
Cooperative forwarding in wireless networks has shown to yield rate and diversity gains, but it incurs energy costs borne by the cooperating nodes. In this paper we consider an inc...
Dan Zhang, Ryoichi Shinkuma, Narayan B. Mandayam
GI
2005
Springer
13 years 10 months ago
On the Signaling Overhead in Dynamic OFDMA Wireless Systems
: It is well known that dynamic OFDMA systems potentially increase the spectral efficiency of wireless systems. They exploit diversity effects in time, space, and frequency by ass...
James Gross, Adam Wolisz, Hans-Florian Geerdes
ICC
2007
IEEE
145views Communications» more  ICC 2007»
13 years 11 months ago
Adaptive vs. Diversity Transmission for Multiuser MISO Systems with Imperfect CSIT
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...
Frederick K. H. Lee, Mai H. Vu, Arogyaswami Paulra...