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Enhanced multi-cell coordination in wireless communication system using beamforming methods

Doctor of Philosophy in Communication Engineering

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Bibliographic Details
Main Author: Omar Khaldoon, Abdul Rahman
Other Authors: Md. Mijanur, Rahman, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Wireless communication systems
Beamforming
Hybrid Cell Downlink Optimization (HCDO)
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72340
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spelling my.unimap-723402021-10-08T01:43:58Z Enhanced multi-cell coordination in wireless communication system using beamforming methods Omar Khaldoon, Abdul Rahman Md. Mijanur, Rahman, Dr. Wireless communication systems Beamforming Hybrid Cell Downlink Optimization (HCDO) Doctor of Philosophy in Communication Engineering A novel CoMP architecture design was proposed via the innovative division of an LTE cell into three spatial regions. The proposed technique is called Hybrid Cell Downlink Optimization (HCDO). This technique focuses on increasing the throughput and the capacity over the cell area. Moreover, the HCDO technique focuses on increasing the deployment coverage area based on the presence of transmission power while reducing the backhaul signaling overhead using the beamforming algorithm. The Minimum Variance Distortionless Response (MVDR) beamformer is the best known beamforming algorithm. Unfortunately, MVDR is very sensitive to steering vector errors, and in the event it occurs, the desired signal could be suppressed. Thus, two beamforming methods were proposed in this thesis for the purpose of modifying and enhancing the performance of the current MVDR beamforming algorithm. These proposed methods, namely, Modified MVDR (MMVDR) and Sub-Space Interference Cancelation MVDR (SSIC-MVDR), focus on increasing the rigidity of MVDR against steering vector errors caused by calibration or manufacturing errors. The performance evaluations, comparisons, and analysis showed that the MMVDR and SSIC-MVDR algorithms are less complex methods, which reduces the cost (number of antennas) by more than 61.5 % and reduce the processing time by reducing the number of snapshots to 99%. Also, the results showed that the incorporation of SSIC-MVDR into HCDO technique improved the transmission signal quality, where the average cell users’ signal modulated with QAM scheme, and improved the cell sector throughput by 136.99%. Moreover, the signaling overhead and response latency were reduced, since the CoMP base station became capable of generating the beamforming weight without help from CU. 2016 2021-10-08T01:43:58Z 2021-10-08T01:43:58Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72340 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Computer and Communication Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Wireless communication systems
Beamforming
Hybrid Cell Downlink Optimization (HCDO)
spellingShingle Wireless communication systems
Beamforming
Hybrid Cell Downlink Optimization (HCDO)
Omar Khaldoon, Abdul Rahman
Enhanced multi-cell coordination in wireless communication system using beamforming methods
description Doctor of Philosophy in Communication Engineering
author2 Md. Mijanur, Rahman, Dr.
author_facet Md. Mijanur, Rahman, Dr.
Omar Khaldoon, Abdul Rahman
format Thesis
author Omar Khaldoon, Abdul Rahman
author_sort Omar Khaldoon, Abdul Rahman
title Enhanced multi-cell coordination in wireless communication system using beamforming methods
title_short Enhanced multi-cell coordination in wireless communication system using beamforming methods
title_full Enhanced multi-cell coordination in wireless communication system using beamforming methods
title_fullStr Enhanced multi-cell coordination in wireless communication system using beamforming methods
title_full_unstemmed Enhanced multi-cell coordination in wireless communication system using beamforming methods
title_sort enhanced multi-cell coordination in wireless communication system using beamforming methods
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72340
_version_ 1724609887148703744
score 13.214268

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