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[CUl18] Exploiting Signal Space Diversity in OFDM with Grouped Subcarriers: Going Beyond Subcarrier Index Modulation
Revue Internationale avec comité de lecture : Journal IEEE wireless communication letters , vol. PP(99), pp. 1-4, 2018, (doi:10.1109/LWC.2018.2807446)
motcle:
Résumé:
We propose a unified approach for orthogonal
frequency-division multiplexing (OFDM) with grouped subcarriers
which encompasses previous schemes such as subcarrier-index
modulation (SIM) and grouped linear constellation-precoding
(GLCP) as particular cases. To exploit signal space diversity
(SSD), we treat the n subcarriers within a group as 2n real
resources. Interleaving at the real component level is used
to break the correlation between adjacent subcarriers. Error
performance analysis then reveals that a 2n-dimensional real
signal constellation (codebook) should be designed according
to the SSD criterion and the multiplicity-to-product distance
ratio criterion. Under certain constraints, the maximum diversity
gain of 2n can be achieved by proper design. We design new
codebooks based on real lattices and show through both computer
simulations and analysis that a superior error performance can
be achieved.
Collaboration:
lcs
BibTeX
| @article { | |||
| CUl18, | |||
| title | = | "{Exploiting Signal Space Diversity in OFDM with Grouped Subcarriers: Going Beyond Subcarrier Index Modulation}", | |
| author | = | "J. Camilo Inacio and B. Uchoa-Filho and D. le Ruyet", | |
| journal | = | "IEEE wireless communication letters ", | |
| year | = | 2018, | |
| volume | = | PP, | |
| number | = | 99, | |
| pages | = | "1-4", | |
| doi | = | "10.1109/LWC.2018.2807446", | |
| } | |||
