Near-optimal BEM OTFS receiver with low pilot overhead for high-mobility communications

• Main Authors: Liu, Yujie, Guan, Yong Liang, Gonzalez, David G.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Basis Expansion Model; Doppler Spread
• Online Access: https://hdl.handle.net/10356/164291
• Institution: Nanyang Technological University

In this paper, a new receiver design based on basis expansion model (BEM) orthogonal time frequency space (OTFS) is presented for high-mobility communications with Doppler-spread channel. By deriving an analytical BEM OTFS system model, a low-order generalized complex exponential BEM (GCE-BEM) aided...