Power coverage and multipath diversity for indoor distributed antenna system based on wideband channel measurement at 6 GHz

Author

Xin, Liang ; Zhang, Jianhua ; Xiong, Fei ; Sun, Yanliang ; Sheng, Nan

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

24-27 Sept. 2012

Firstpage

429

Lastpage

433

Abstract

In this paper, power coverage characteristic and multipath diversity scheme for downlink simulcast distributed antenna system (DAS) are investigated based on a wideband channel measurement at 6 GHz for indoor scenario. With measured path loss (PL), power coverage property is analyzed. Compared with centralized antenna system (CAS), DAS can introduce 5-17 dB PL gain, and achieve a higher coverage ratio. Then, we propose a multipath diversity algorithm to improve the received power through introducing differential delay and phase rotation simultaneously at the transmitter (Tx). Based on the measured data, it has 1.67 dB power gain in line of sight (LOS) case averagely, better than the scheme without transmission control and multipath antenna diversity (MAD) algorithm.

Keywords

broadband antennas; diversity reception; indoor radio; telecommunication channels; MAD algorithm; centralized antenna system; differential delay; downlink simulcast distributed antenna system; frequency 6 GHz; indoor distributed antenna system; line of sight; multipath antenna diversity; multipath diversity scheme; path loss; phase rotation; power coverage; power coverage characteristic; power coverage property; transmitter; wideband channel measurement; Antenna arrays; Antenna measurements; Delay; Gain; Power measurement; Radio link; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2012 15th International Symposium on

Conference_Location

Taipei

ISSN

1347-6890

Print_ISBN

978-1-4673-4533-0

Type

conf

Filename

6398737