Performance improvement of OFDMA cellular system using code division multiplexing in satellite/terrestrial integrated mobile communication system

Author

Okamoto, Eiji ; Tsuji, Hiroyuki ; Fujino, Yoshiyuki

Author_Institution

Dept. of Comput. Sci. & Eng., Nagoya Inst. of Technol., Nagoya, Japan

fYear

2011

fDate

3-7 Oct. 2011

Firstpage

1

Lastpage

5

Abstract

A satellite/terrestrial integrated mobile communication system (STICS) is a hybrid mobile communication system using a terrestrial and a satellite cellular systems. If both systems use the same frequency band, the satellite downlink exerts interference to the terrestrial mobile phones. In this paper, we clarify the deterioration of a bit error rate and a throughput performance of the downlink terrestrial cellular system utilizing a multiple-input multiple-output orthogonal frequency division multiple access (MIMO-OFDMA) in STICS by computer simulations. In addition, we propose the application of MIMO-OFDMA-code division multiplexing (CDM) in which the frequency-domain code spreading is applied for MIMO-OFDMA to improve the performance in STICS. Also, it is demonstrated that the sufficient carrier to interference ratio (CIR) of the mobile phone to the satellite signal is about 6 dB.

Keywords

MIMO communication; OFDM modulation; cellular radio; code division multiplexing; error statistics; frequency division multiple access; mobile satellite communication; radio links; MIMO-OFDMA; OFDMA cellular system; bit error rate; carrier-to-interference ratio; code division multiplexing; downlink terrestrial cellular system; frequency-domain code spreading; hybrid mobile communication system; multiple-input multiple-output orthogonal frequency division multiple access; satellite cellular system; satellite downlink; satellite/terrestrial integrated mobile communication system; terrestrial mobile phone; throughput performance; Downlink; Interference; OFDM; Resource management; Satellites; Throughput; MIMO-OFDMA; code division multiplexing; interference; satellite/terrestrial integrated mobile communication system;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2011 14th International Symposium on

Conference_Location

Brest

ISSN

1347-6890

Print_ISBN

978-1-4577-1786-4

Electronic_ISBN

1347-6890

Type

conf

Filename

6081539