A novel rate allocation method for multilevel coded modulation

Beygi, Lotfollah,1977Chalmers tekniska högskola,Chalmers University of Technology (author)

We present a new rate allocation scheme for multilevelcoded modulation based on the minimization of the totalblock error rate (BLER). The proposed method uses affine codecomponents and hard decision multistage decoding. Exhaustivesearch for the rate allocation which minimizes the total BLERjustifies the near-optimum performance of the introduced methodin moderate to high SNRs. Compared to previous approaches thisnew rate allocation scheme can improve the performance of thesystem by 1 dB at BLER = 10−6 for 16-QAM with Ungerboeck setpartitioning. Interestingly, our results indicate that the optimumrate allocation is a function of the SNR. Finally, the performanceof some specific codes are evaluated by simulation and unionbounds to verify the theoretical results.

Agrell, Erik,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)agrell (author)
Karlsson, Magnus,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)magkar (author)
Makki, Behrooz,1980Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)makkib (author)
Chalmers tekniska högskola (creator_code:org_t)

In:IEEE International Symposium on Information Theory - Proceedings, s. 1983-19872157-80959781424469604

By the author/editor: Beygi, Lotfollah ...; Agrell, Erik, 19 ...; Karlsson, Magnus ...; Makki, Behrooz, ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Telecommunicatio ...

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