Designing Affine OCDM Systems with Maximum Diversity
Sidong Guo, Xiaoli Ma, Yiyin Wang
TL;DR
This paper introduces Affine OCDM systems that adapt chirp parameters to maximize multipath diversity in frequency selective channels, reducing complexity while maintaining interference resilience.
Contribution
It proposes a novel Affine OCDM system that enhances diversity and simplifies implementation by removing the need for precoding.
Findings
A-OCDM achieves maximum multipath diversity.
A-OCDM reduces implementation complexity.
A-OCDM maintains interference resilience.
Abstract
This work considers the problem of enabling maximum multipath diversity of orthogonal chirp division multiplexing (OCDM)-based systems. We define and study an Affine OCDM (A-OCDM) system in which a chirp parameter is adapted to enable maximum diversity offered by frequency selective channels. Our proposed system also reduces implementation complexity by eliminating the need for precoding, compared to linear constellation precoded OCDM. Corroborating simulations are provided to show that A-OCDM also preserves OCDM systems' resilience against interference offered by spreading.
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Taxonomy
Topicsgraph theory and CDMA systems · Coding theory and cryptography · Advanced Wireless Communication Techniques