A New Full-diversity Criterion and Low-complexity STBCs with Partial Interference Cancellation Decoding
Abstract
Recently, Guo and Xia gave sufficient conditions for an STBC to achieve full diversity when a PIC (Partial Interference Cancellation) or a PIC-SIC (PIC with Successive Interference Cancellation) decoder is used at the receiver. In this paper, we give alternative conditions for an STBC to achieve full diversity with PIC and PIC-SIC decoders, which are equivalent to Guo and Xia's conditions, but are much easier to check. Using these conditions, we construct a new class of full diversity PIC-SIC decodable codes, which contain the Toeplitz codes and a family of codes recently proposed by Zhang, Xu et. al. as proper subclasses. With the help of the new criteria, we also show that a class of PIC-SIC decodable codes recently proposed by Zhang, Shi et. al. can be decoded with much lower complexity than what is reported, without compromising on full diversity.
Cite
@article{arxiv.1004.2131,
title = {A New Full-diversity Criterion and Low-complexity STBCs with Partial Interference Cancellation Decoding},
author = {Lakshmi Prasad Natarajan and B. Sundar Rajan},
journal= {arXiv preprint arXiv:1004.2131},
year = {2015}
}
Comments
9 pages, 2 figures, 1 table.