DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, Seongwook | ko |
dc.contributor.author | Moon, Jaekyun | ko |
dc.date.accessioned | 2013-03-08T18:29:32Z | - |
dc.date.available | 2013-03-08T18:29:32Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2012-02 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON INFORMATION THEORY, v.58, no.2, pp.864 - 877 | - |
dc.identifier.issn | 0018-9448 | - |
dc.identifier.uri | http://hdl.handle.net/10203/93916 | - |
dc.description.abstract | Provable lower bounds are presented for the information rate I(X; X + S + N) where X is the symbol drawn independently and uniformly from a finite-size alphabet, S is a discrete-valued random variable (RV) and N is a Gaussian RV. It is well known that with S representing the precursor intersymbol interference (ISI) at the decision feedback equalizer (DFE) output, I(X; X + S + N) serves as a tight lower bound for the symmetric information rate (SIR) as well as capacity of the ISI channel corrupted by Gaussian noise. When evaluated on a number of well-known finite-ISI channels, these new bounds provide a very similar level of tightness against the SIR to the conjectured lower bound by Shamai and Laroia at all signal-to-noise ratio (SNR) ranges, while being actually tighter when viewed closed up at high SNRs. The new lower bounds are obtained in two steps: First, a "mismatched" mutual information function is introduced which can be proved as a lower bound to I(X; X + S + N) Secondly, this function is further bounded from below by an expression that can be computed easily via a few single-dimensional integrations with a small computational load. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | MEMORY | - |
dc.title | Easily Computed Lower Bounds on the Information Rate of Intersymbol Interference Channels | - |
dc.type | Article | - |
dc.identifier.wosid | 000300246900025 | - |
dc.identifier.scopusid | 2-s2.0-84856889662 | - |
dc.type.rims | ART | - |
dc.citation.volume | 58 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 864 | - |
dc.citation.endingpage | 877 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON INFORMATION THEORY | - |
dc.identifier.doi | 10.1109/TIT.2011.2173715 | - |
dc.contributor.localauthor | Moon, Jaekyun | - |
dc.contributor.nonIdAuthor | Jeong, Seongwook | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Channel capacity | - |
dc.subject.keywordAuthor | decision feedback equalizer | - |
dc.subject.keywordAuthor | information rate | - |
dc.subject.keywordAuthor | intersymbol interference | - |
dc.subject.keywordAuthor | lower bounds | - |
dc.subject.keywordAuthor | mutual information | - |
dc.subject.keywordPlus | MEMORY | - |
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