Ray Antenna Array: A Novel Cost-Effective Multi-Antenna Architecture for Enhanced Wireless Communication
Zhenjun Dong, Zhiwen Zhou, and Yong Zeng

TL;DR
This paper introduces the ray antenna array (RAA), a cost-effective multi-antenna architecture that enhances wireless communication by using simple, directional antenna elements arranged in rays, eliminating the need for expensive phase shifters.
Contribution
The paper presents the RAA architecture, a novel multi-antenna design that reduces hardware costs and improves performance by using ray-based antenna arrangements without analog or digital beamforming.
Findings
RAA significantly reduces hardware costs compared to HBF.
RAA achieves superior system performance in simulations.
RAA effectively enhances directional beamforming capabilities.
Abstract
This paper proposes a novel multi-antenna architecture, termed ray antenna array (RAA), which aims to enhance wireless communication performance in a cost-effective manner. RAA is composed of massive cheap antenna elements and a few radio frequency (RF) chains. The massive antenna elements are arranged in a novel ray-like structure, with each ray corresponding to a simple uniform linear array (sULA) with a carefully designed orientation. The antenna elements of each sULA are directly connected to an RF combiner, so that the sULA in each ray is able to form a beam towards a direction matching the ray orientation without relying on any analog or digital beamforming. By further designing a ray selection network (RSN), appropriate sULAs are selected to connect to the RF chains for further baseband processing. Compared to conventional multi-antenna architectures like hybrid analog/digital…
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Taxonomy
TopicsAntenna Design and Analysis · Antenna Design and Optimization · Advanced MIMO Systems Optimization
