header
Image from OpenLibrary

Enhanced single-shot beam-training using true-time-delay units for mmwave hybrid arrays / by Mohamed Waeel Hamdy ; Supervisors Prof. Ahmed Hesham Mehana, Dr. Mohammed Ahmed Abdelghany.

By: Contributor(s): Material type: TextTextLanguage: English Summary language: English, Arabic Producer: 2023Description: 67 pages : illustrations ; 30 cm. + CDContent type:
  • text
Media type:
  • Unmediated
Carrier type:
  • volume
Other title:
  • طريقة محسنة لتدريب الحزمة من مرة واحدة باستخدام أجهزة تأخير الوقت الحقيقية للمصفوفات الهوائية الهجينة لنظم الموجات الميلليمترية [Added title page title]
Subject(s): DDC classification:
  • 621.382
Available additional physical forms:
  • Issues also as CD.
Dissertation note: Thesis (M.Sc)-Cairo University, 2023. Summary: Massive arrays are used in millimeter wave channels to compensate for the severe propa- gation path loss. One of the common challenges, that is a by-product of massive arrays, is the beam steering and selection. In this work, we use true-time-delay to minimize the beam training overhead associated with large number of antennas in millimeter wave. We propose an angle-of-arrival estimation algorithm that leverages the degrees of freedom introduced by hybrid beamforming system and thus, allows for single-shot, i.e., single-pilot, estimation process with good performance. The proposed algorithm improves the 5th percentile beamforming gain compared to the existing single-shot algorithms. Our simulations show that the proposed algorithm enhances the receiver’s sensitivity by 3 dB when using hybrid arrays. We show that at relatively fair signal-to-noise ratios, the num- ber of analog-to-digital converters at the receiver side can be decreased without significant performance loss, thus saving power and area
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)

Thesis (M.Sc)-Cairo University, 2023.

Bibliography: pages 65-67.

Massive arrays are used in millimeter wave channels to compensate for the severe propa- gation path loss. One of the common challenges, that is a by-product of massive arrays, is the beam steering and selection. In this work, we use true-time-delay to minimize the beam training overhead associated with large number of antennas in millimeter wave.
We propose an angle-of-arrival estimation algorithm that leverages the degrees of freedom introduced by hybrid beamforming system and thus, allows for single-shot, i.e., single-pilot, estimation process with good performance. The proposed algorithm improves the 5th percentile beamforming gain compared to the existing single-shot algorithms. Our simulations show that the proposed algorithm enhances the receiver’s sensitivity by 3 dB when using hybrid arrays. We show that at relatively fair signal-to-noise ratios, the num- ber of analog-to-digital converters at the receiver side can be decreased without significant performance loss, thus saving power and area

Issues also as CD.

Text in English and abstract in Arabic & English.

There are no comments on this title.

to post a comment.
Share
Under the supervision of New Central Library Manager

Implemented and Customized by: Eng.M.Mohamady
Contact:   info@cl.cu.edu.eg
© All rights reserved  New Central Library