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Macro-Diversity Scheme for a Point-to-Multipoint Communication System by means of D-STBC Method in Fast Fading Environment

Subrata Kumar BISWAS, Tetsuki TANIGUCHI, Yoshio KARASAWA

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Summary :

In recent years, the space-time block coding (STBC) method has attracted attention to provide transmission diversity in mobile communication systems. Although the STBC method is very effective in slow fading environments, its performance in fast fading environments has yet to be clearly verified. In this paper we propose a railway radio communication system using space-time coding in cooperation with two base stations. Here, we considered the differential STBC (D-STBC) method in railway communication system to overcome difficulties caused by the fast fading environment. We have compared the performance of STBC and D-STBC method where there is frequency offset between two base stations. Moreover, we have presented the simulation result of overall performance of the system including frequency offset and transmission time delay when operating D-STBC method. The overall evaluation on this paper shows that the D-STBC method is suitable for realizing highly reliable railway communication systems.

Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.6 pp.2122-2130
Publication Date
2009/06/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E92.B.2122
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

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