# Directional Initial Access for Millimeter Wave Cellular Systems

arXiv: https://arxiv.org/abs/1511.06483 · HTML: https://mlsanity.com/paper/1511.06483/

## Key facts

- Cited by 8 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 20 Nov 2015.

## Built on by (most cited first, 8 of 8)

- [Deep learning for location based beamforming with NLOS channels](https://mlsanity.com/paper/2201.01386/) (2021)
- [Deep Learning for Fast and Reliable Initial Access in AI-Driven 6G mmWave Networks](https://mlsanity.com/paper/2101.01847/) (2021)
- [Bayesian Optimization-Based Beam Alignment for MmWave MIMO Communication Systems](https://mlsanity.com/paper/2207.14174/) (2022)
- [UB3: Best Beam Identification in Millimeter Wave Systems via Pure Exploration Unimodal Bandits](https://mlsanity.com/paper/2301.03456/) (2022)
- [QuaMoE-DRF: Proactive Beam and Rate Adaptation via Multimodal Dynamic Radio Map Forecasting in ISAC Networks](https://mlsanity.com/paper/2607.00974/) (2026)
- [Reinforcement Learning for Optimized Beam Training in Multi-Hop Terahertz Communications](https://mlsanity.com/paper/2102.05269/) (2021)
- [On Single-User Interactive Beam Alignment in Next Generation Systems: A Deep Learning Viewpoint](https://mlsanity.com/paper/2102.10229/) (2021)
- [Proactive Resilient Transmission and Scheduling Mechanisms for mmWave Networks](https://mlsanity.com/paper/2211.09307/) (2022)

## Abstract (arXiv)

The millimeter wave (mmWave) bands have recently attracted considerable interest for next-generation cellular systems due to the massive available bandwidths at these frequencies. However, a key challenge in designing mmWave cellular systems is initial access -- the procedure by which a mobile establishes an initial link-layer connection to a base station cell. MmWave communication relies on highly directional transmissions and the initial access procedure must thus provide a mechanism by which initial transmission directions can be searched in a potentially large angular space. Design options are compared considering different scanning and signaling procedures to evaluate access delay and system overhead. The channel structure and multiple access issues are also considered. The analysis demonstrates significant benefits of low-resolution fully digital architectures in comparison to single stream analog beamforming.