Title :
Adaptive equalization: transitioning from single-carrier to multicarrier systems
Author :
Martin, Richard K. ; Johnson, C. Richard, Jr.
Author_Institution :
Air Force Inst. of Technol., Dayton, OH, USA
Abstract :
This article discusses the creation of adaptive algorithms for channel shortening, with particular attention to blind algorithms. The context is multicarrier modulation, through other applications of channel shortening are discussed. It is shown that the algorithms used for adaptive equalization are not easily applied to adaptive channel shortening. In a return to first principles, a property restoral design philosophy is put forth and several recent property-restoral-based approaches to adaptive channel shortening are reviewed. The authors conclude with a discussion of the limitations of the current approaches and a list of open problems in the area of adaptive channel shortening.
Keywords :
adaptive equalisers; blind equalisers; modulation; telecommunication channels; 0.35 mum; 2.45 GHz; adaptive algorithms; adaptive equalization; blind algorithms; channel shortening; multicarrier modulation; multicarrier systems; single-carrier; Adaptive equalizers; Artificial satellites; Bit error rate; DSL; Delay effects; Digital video broadcasting; HDTV; Satellite broadcasting; Shape; Signal processing algorithms;
Journal_Title :
Signal Processing Magazine, IEEE
DOI :
10.1109/MSP.2005.1550193