Semidefinite Relaxation Based Blind Equalization using Constant Modulus Criterion
Information Theory
2018-10-31 v2 math.IT
Abstract
Blind equalization is a classic yet open problem. Statistic-based algorithms, such as constant modulus (CM), were widely investigated. One inherent issue with blind algorithms is the phase ambiguity of equalized signals. In this letter, we propose a novel scheme based on CM criterion and take advantage of the asymmetric property in a class of LDPC codes to resolve the phase ambiguity. Specifically, a new formulation with modified CM objective function and relaxed code constraints is presented.
Cite
@article{arxiv.1808.07232,
title = {Semidefinite Relaxation Based Blind Equalization using Constant Modulus Criterion},
author = {Kun Wang},
journal= {arXiv preprint arXiv:1808.07232},
year = {2018}
}
Comments
8 pages, letter