Title :
An SDM Method Utilizing Height Pattern Due to Two-Ray Fading Characteristics
Author :
Hiraga, Ken ; Sakamoto, Kazumitsu ; Arai, Manabu ; Seki, Takaya ; Nakagawa, T. ; Uehara, Kazuhiro
Author_Institution :
NTT, Yokosuka, Japan
Abstract :
A spatial division multiplexing (SDM) transmission method utilizing the characteristics of two-ray fading without relying on narrow beam of the antennas is introduced. This letter formulates the optimized array antenna arrangements and channel capacity as functions of the transmission distance and shows achievable channel capacity for two- and three-element antenna arrays. The letter also describes bandwidth dependency up to 15% bandwidth based on an assumed application to 60-GHz-band gigabit wireless systems. The proposed method provides increased capacity comparable to multiple-input-multiple-output (MIMO) transmission without the extra signal processing cost incurred when using conventional MIMO.
Keywords :
channel capacity; fading channels; millimetre wave antenna arrays; space division multiplexing; MIMO transmission; SDM transmission method; channel capacity; frequency 60 GHz; gigabit wireless systems; height pattern utilization; multiple-input-multiple-output transmission; optimized array antenna; spatial division multiplexing transmission method; three-element antenna arrays; transmission distance; two-ray fading characteristics; Arrays; Bandwidth; Channel capacity; Equations; Transmitting antennas; Parallel transmission; spatial division transmission; two-ray ground reflection;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2294454
