In recent years, electronics engineers have been trying to identify semiconducting materials that could substitute for ...
Abstract: In this article, an improved scheme of orthogonal chirp multiplexing (OCDM) system for the passive optical network (PON) is proposed, which adopts a three-dimensional (3D) constellation and ...
Abstract: This paper proposes a two-dimensonal positioning method based on a hidden Markov model map-matching scheme. The states of the hidden Markov model are generated by dividing the area of ...