scholarly journals Low-Rank Spatial Channel Estimation for Millimeter Wave Cellular Systems

2017 ◽  
Vol 16 (5) ◽  
pp. 2748-2759 ◽  
Author(s):  
Parisa A. Eliasi ◽  
Sundeep Rangan ◽  
Theodore S. Rappaport
Keyword(s):  
Channel Estimation ◽  
Millimeter Wave ◽  
Cellular Systems ◽  
Low Rank

scholarly journals Random-Access Technique for Self-Organization of 5G Millimeter-Wave Cellular Communications

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Jasper Meynard Arana ◽  
Joo Pyo Han ◽  
Yong Soo Cho
Keyword(s):  
Millimeter Wave ◽  
Detection Probability ◽  
Processing Time ◽  
Random Access ◽  
False Alarm Probability ◽  
Cellular Systems ◽  
Correlation Property ◽  
Different Types ◽  
Multiuser Environments ◽  
Access Technique

The random-access (RA) technique is a key procedure in cellular networks and self-organizing networks (SONs), but the overall processing time of this technique in millimeter-wave (mm-wave) cellular systems with directional beams is very long because RA preambles (RAPs) should be transmitted in all directions of Tx and Rx beams. In this paper, two different types of preambles (RAP-1 and RAP-2) are proposed to reduce the processing time in the RA stage. After analyzing the correlation property, false-alarm probability, and detection probability of the proposed RAPs, we perform simulations to show that the RAP-2 is suitable for RA in mm-wave cellular systems with directional beams because of the smaller processing time and high detection probability in multiuser environments.

scholarly journals Initial Beam Association in Millimeter Wave Cellular Systems: Analysis and Design Insights

2017 ◽  
Vol 16 (5) ◽  
pp. 2807-2821 ◽  
Author(s):  
Ahmed Alkhateeb ◽  
Young-Han Nam ◽  
Md. Saifur Rahman ◽  
Jianzhong Zhang ◽  
Robert W. Heath
Keyword(s):  
Millimeter Wave ◽  
Systems Analysis ◽  
Cellular Systems ◽  
Analysis And Design ◽  
Initial Beam ◽  
Systems Analysis And Design
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