Abstract—In DVB-SH (Digital Video Broadcasting-Satellite
services to Handhelds) systems, mobile terminals can receive
either a signal from a broadcasting satellite or a signal from a
terrestrial repeater. These two signals are not combined at the
mobile receiver. The technique of signal combining is widely
used in terrestrial mobile communication systems, and is
effective against fading and multipath effects to improve the
quality of received signals. Thus, the purpose of this paper is to
discuss the feasibility of signal combining for DVB-SH terminals
and to find out whether there is an improvement to be obtained
by combining the signals from satellite and terrestrial repeater.
In the paper, we first perform a statistical analysis of channels in
different states. Then, we discuss two methods for combining the
two signals. Finally, we analyze the improvement of each
method.
Index Terms—In DVB-SH (Digital Video Broadcasting-Satellite
services to Handhelds) systems, mobile terminals can receive
either a signal from a broadcasting satellite or a signal from a
terrestrial repeater. These two signals are not combined at the
mobile receiver. The technique of signal combining is widely
used in terrestrial mobile communication systems, and is
effective against fading and multipath effects to improve the
quality of received signals. Thus, the purpose of this paper is to
discuss the feasibility of signal combining for DVB-SH terminals
and to find out whether there is an improvement to be obtained
by combining the signals from satellite and terrestrial repeater.
In the paper, we first perform a statistical analysis of channels in
different states. Then, we discuss two methods for combining the
two signals. Finally, we analyze the improvement of each
method.
Hui Zhou is with the Institute of Telecommunication Satellite, CAST,
Beijing, China, 100094 (e-mail:cast_zhouhui@163.com).
[PDF]
Cite:Hui Zhou, "Study of Combining DVB-SH Signals from Satellite and
Terrestrial Repeater," International Journal of Future Computer and Communication vol. 3, no. 4, pp. 287-290, 2014.
