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PIMRC
2008
IEEE
14 years 4 months ago
Optimal constellation distortion for PAR reduction in OFDM systems
Abstract—The high peak-to-average-power ratio (PAR) of Orthogonal Frequency Division Multiplexing (OFDM) transmission systems significantly reduces the power efficiency or perf...
Moshe Malkin, Brian S. Krongold, John M. Cioffi
PIMRC
2008
IEEE
14 years 4 months ago
LAC: Load-aware channel selection in 802.11 WLANs
—Dense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large...
George Athanasiou, Ioannis Broustis, Thanasis Kora...
PIMRC
2008
IEEE
14 years 4 months ago
Information theory vs. queueing theory for resource allocation in multiple access channels
— We consider the problem of rate allocation in a fading Gaussian multiple-access channel with fixed transmission powers. The goal is to maximize a general concave utility funct...
Ali ParandehGheibi, Muriel Médard, Asuman E...
PIMRC
2008
IEEE
14 years 4 months ago
Channel state information based LLR clipping in list MIMO detection
—Suboptimal detection schemes, such as list MIMO detection, often face the challenge of having to “guess” at the decision reliability for some of the detected bits. A simple ...
David L. Milliner, Ernesto Zimmermann, John R. Bar...
PIMRC
2008
IEEE
14 years 4 months ago
Understanding the Performance of 802.11 Networks
Abstract—In this paper, we review the most important performance characteristics of the 802.11 DCF wireless networks, point out some false common knowledge, and report on recent ...
Andrzej Duda