English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

For any $n_t$ transmit, $n_r$ receive antenna ($n_t\times n_r$) MIMO systemin a quasi-static Rayleigh fading environment, it was shown by Elia et al. thatlinear space-time block code-schemes (LSTBC-schemes) which have thenon-vanishing determinant (NVD) property are diversity-multiplexing gaintradeoff (DMT)-optimal for arbitrary values of $n_r$ if they have a code-rateof $n_t$ complex dimensions per channel use. However, for asymmetric MIMOsystems (where $n_r < n_t$), with the exception of a few LSTBC-schemes, it isunknown whether general LSTBC-schemes with NVD and a code-rate of $n_r$ complexdimensions per channel use are DMT-optimal. In this paper, an enhancedsufficient criterion for any STBC-scheme to be DMT-optimal is obtained, andusing this criterion, it is established that any LSTBC-scheme with NVD and acode-rate of $\min\{n_t,n_r\}$ complex dimensions per channel use isDMT-optimal. This result settles the DMT-optimality of several well-known,low-ML-decoding-complexity LSTBC-schemes for certain asymmetric MIMO systems.

An Enhanced DMT-optimality Criterion for STBC-schemes for Asymmetric MIMO Systems