Change search
ReferencesLink to record
Permanent link

Direct link
Performance Assessment of MIMO-BICM Demodulators Based on Mutual Information
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-6630-243X
2012 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 60, no 3, 1366-1382 p.Article in journal (Refereed) Published
Abstract [en]

We provide a comprehensive performance comparison of soft-output and hard-output demodulators in the context of non-iterative multiple-input multiple-output bit-interleaved coded modulation (MIMO-BICM). Coded bit error rate (BER), widely used in literature for demodulator comparison, has the draw-back of depending strongly on the error correcting code being used. This motivates us to propose the mutual information of the equivalent modulation channel (comprising modulator, wireless channel, and demodulator) as a code-independent performance measure. We present extensive numerical results for spatially independent identically distributed (i.i.d.) ergodic and quasi-static fading channels under perfect and imperfect channel state information. These results reveal that the performance ranking of MIMO demodulators is rate-dependent and provide new insights regarding MIMO-BICM system design, i.e., the choice of antenna configuration, symbol constellation, and demodulator for a given target rate.

Place, publisher, year, edition, pages
2012. Vol. 60, no 3, 1366-1382 p.
Keyword [en]
Bit-interleaved coded modulation (BICM), log-likelihood ratio, multiple-input-multiple-output (MIMO), mutual information, performance limits, soft demodulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-91244DOI: 10.1109/TSP.2011.2177823ISI: 000300424500031ScopusID: 2-s2.0-84857211835OAI: diva2:509300
ICT - The Next Generation

QC 20120312

Available from: 2012-03-12 Created: 2012-03-12 Last updated: 2013-04-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Jaldén, Joakim
By organisation
Signal ProcessingACCESS Linnaeus Centre
In the same journal
IEEE Transactions on Signal Processing
Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 22 hits
ReferencesLink to record
Permanent link

Direct link