Comparative Analysis of Initial Access Techniques in 5G mmWave Cellular Networks

Abstract

The millimeter wave frequencies (roughly above 10 GHz) offer the availability of massive bandwidth to greatly increase the capacity of fifth generation (5G) cellular wireless systems. However, to overcome the high isotropic pathloss at these frequencies, highly directional transmissions will be required at both the base station (BS) and the mobile user equipment (UE) to establish sufficient link budget in wide area networks. This reliance on directionality has important implications for control layer procedures. Initial access in particular can be significantly delayed due to the need for the BS and the UE to find the initial directions of transmission. This paper provides a survey of several recently proposed techniques. Detection probability and delay analysis is performed to compare various techniques including exhaustive and iterative search. We show that the optimal strategy depends on the target SNR regime.

Accepted at 50th Annual Conference on Information Sciences and Systems (CISS), 2016

References in corpus (1)

• Beamforming Tradeoffs for Initial UE Discovery in Millimeter-Wave MIMO Systems

Cited by in corpus (9)

• Modeling and Analyzing Millimeter Wave Cellular Systems
• A Tutorial on Beam Management for 3GPP NR at mmWave Frequencies
• Improved Handover Through Dual Connectivity in 5G mmWave Mobile Networks
• Initial Access in 5G mm-Wave Cellular Networks
• Active Learning and CSI Acquisition for mmWave Initial Alignment
• Multi-Connectivity in 5G mmWave Cellular Networks
• Fast Cell Discovery in mm-wave 5G Networks with Context Information
• An Efficient Uplink Multi-Connectivity Scheme for 5G mmWave Control Plane Applications
• Improved Target Acquisition Rates with Feedback Codes