Title :
Two-dimensional linear MMSE equalization for page-oriented optical memories
Author :
Chugg, Keith M. ; Chen, Xiaopeng ; Neifeld, Mark A.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
The design of linear minimum mean square error (MMSE) equalizers for two-dimensional intersymbol interference (ISI) channels is considered. Signal models are developed and filter design is conducted for various operating environments associated with particular implementations associated with particular implementations of page-oriented optical memories (POMs). Specifically we consider optically incoherent and coherent systems dominated by either thermal or shot noise. It is demonstrated how these simple ISI mitigation algorithms may be used to improve the storage density and hence memory capacity.
Keywords :
equalisers; holographic storage; intersymbol interference; least mean squares methods; shot noise; thermal noise; ISI channels; ISI mitigation algorithm; coherent systems; filter design; linear minimum mean square error equalizers; memory capacity; optically incoherent systems; page-oriented optical memories; shot noise; signal models; storage densit; thermal noise; two-dimensional intersymbol interference channels; two-dimensional linear MMSE equalization; Adaptive optics; Additive white noise; Crosstalk; Gaussian noise; Holographic optical components; Holography; Intersymbol interference; Optical filters; Optical noise; Working environment noise;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.680235
