Title page for ETD etd-274910262973840

Type of Document

Dissertation

Author

Petrus, Paul

URN

etd-274910262973840

Title

Novel Adaptive Array Algorithms and Their Impact on Cellular System Capacity

Degree

PhD

Department

Electrical and Computer Engineering

Advisory Committee

Advisor Name	Title
Dr. Jeffrey H. Reed	Committee Chair
Dr. Brian D. Woerner	none
Dr. Christopher Beattie	none
Dr. Louis A. Beex	none
Dr. Theodore S. Rappaport	none

Keywords

adaptive arrays
smart antennas
AMPS
CDMA
GBSBM
cellular

Date of Defense

1997-03-18

Availability

unrestricted

Abstract

This research focuses on the application of

adaptive arrays to the Advanced Mobile

Phone Service (AMPS) and Code Division

Multiple Access (CDMA) cellular systems.

Adaptive arrays have been proposed as

early as in the 1960s to improve the signal

quality, but most of its applications were

restricted to defense purposes. Recently,

there has been a surge in interest of

applying adaptive arrays for cellular

systems. This work introduces new blind

adaptive array algorithms for AMPS and

CDMA signals. The theoretical capacity

limit using an adaptive array at the base

station for an AMPS cellular system is

derived in this work. One of the significant

contributions in this research is a macrocell

channel model which provides

angle-of-arrival (AOA) statistics of the

multipath components. Practical issues

involved in the implementation of an

adaptive array are addressed and the

author's implementation of an 8-element

adaptive array operating at 2.05 GHz is

explained. This research also analyzes the

capacity that can be offered by an adaptive

array in a system where CDMA users

co-exist with existing AMPS users. A novel

cellular CDMA system which exploits

adaptive arrays is introduced and the

capacity offered by this system is

compared with existing and other systems

exploiting spatial dimension.

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