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2010

Outage exponents of block-fading channels with power allocation

7 years 10 months ago
Outage exponents of block-fading channels with power allocation
Power allocation is studied for fixed-rate transmission over block-fading channels with arbitrary continuous fading distributions and perfect transmitter and receiver channel state information. Both short- and long-term power constraints for arbitrary input distributions are considered. Optimal power allocation schemes are shown to be direct applications of previous results in the literature. It is shown that the short- and long-term outage exponents for arbitrary input distributions are related through a simple formula. The formula is useful to predict when the delaylimited capacity is positive. Furthermore, this characterization is useful for the design of efficient coding schemes for this relevant channel model.
Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K.
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TIT
Authors Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K. Rasmussen
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