An SD Method Utilizing Null Dependency on Transmission Distance Due to Two-Ray Fading

Author

Hiraga, Ken ; Sakamoto, Kazumitsu ; Arai, Manabu ; Seki, Takaya ; Nakagawa, T. ; Uehara, Kazuhiro

Author_Institution

NTT Network Innovation Labs., Yokosuka, Japan

Volume

13

fYear

2014

fDate

2014

Firstpage

126

Lastpage

129

Abstract

A spatial division (SD) transmission method utilizing the characteristics of two-ray fading due to ground reflection with linear antenna arrays horizontal to the ground is proposed. Formulations of the optimum array arrangements as functions of the transmission distance and achievable channel capacity are clarified. For two- and three-element arrays, channel capacity is respectively doubled and tripled over that of free-space propagation. The proposed method provides increased capacity without the extra signal processing cost incurred when using conventional multiple-input-multiple-output (MIMO) transmission.

Keywords

antenna arrays; channel capacity; space division multiplexing; SD method; channel capacity; free-space propagation; linear antenna arrays; multiple-input-multiple-output transmission; null dependency; optimum array arrangements; spatial division transmission method; three-element arrays; transmission distance; two-element arrays; two-ray fading; Channel capacity; Equations; MIMO; Reflection; Transmitting antennas; Parallel transmission; spatial division multiplexing; two-ray ground reflection;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2297379

Filename

6701188