Reed-Muller Sequences for 5G Grant-free Massive Access

2018/01/16 by Huazi Zhang, Rong Li, Zhang, Huazi +7
Engineering · #Advanced MIMO Systems Optimization #Advanced Wireless Communication Techniques #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #Information Theory (cs.IT)

paper · pdf · doi:10.48550/arxiv.1801.05089

openalex publication_date 2018/01/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose to use second order Reed-Muller (RM) sequence for user identification in 5G grant-free access. The benefits of RM sequences mainly lie in two folds, (i) support of much larger user space, hence lower collision probability and (ii) lower detection complexity. These two features are essential to meet the massive connectivity (10⁷ links/km²), ultra-reliable and low-latency requirements in 5G, e.g., one-shot transmission (≤ 1ms) with ≤ 10^-4 packet error rate. However, the non-orthogonality introduced during sequence space expansion leads to worse detection performance. In this paper, we propose a noise-resilient detection algorithm along with a layered sequence construction to meet the harsh requirements. Link-level simulations in both narrow-band and OFDM-based scenarios show that RM sequences are suitable for 5G.

Related

• Massive Access in Multi-cell Wireless Networks Using Reed-Muller Codes
• Asynchronous Massive Access in Multi-cell Wireless Networks Using Reed-Muller Codes
• Design of Non-Orthogonal Sequences Using a Two-Stage Genetic Algorithm for Grant-Free Massive Connectivity
• Multiple Access for 5G New Radio: Categorization, Evaluation, and Challenges
• A High Capacity Preamble Sequence for Random Access in Beyond 5G Networks: Design and Analysis