Optimal Selection of Cyclic-prefix and Sub-carrier for OFDM Signal in Mobile Satellite Communications Channel

DOI

10.2991/iccia.2012.135How to use a DOI?

Keywords

mobile satellite communication, OFDM, CP length, sub-carrier bandwidth

Abstract

Adapted parameters of OFDM signals can bring performance improvement in mobile satellite communications. This paper firstly analyzes the effect of cyclic-prefix (CP) length and sub-carrier bandwidth on system interference and capacity. This effect can be described by a formula which consists of system capacity, CP length and sub-carrier bandwidth. Then using this formula, a method to select the optimal parameters is given. In the end, a numerical calculation is performed to figure out the optimal parameters, considering the multipath delay spread and Doppler spread in satellite channel. It comes up that in satellite channel the CP is not very effective to improve the system performance and a wider sub-carrier bandwidth is desired.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bin Li
AU  - Wei Zheng
AU  - Shubo Ren
AU  - Jianjun Wu
PY  - 2014/05
DA  - 2014/05
TI  - Optimal Selection of Cyclic-prefix and Sub-carrier for OFDM Signal in Mobile Satellite Communications Channel
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 558
EP  - 561
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.135
DO  - 10.2991/iccia.2012.135
ID  - Li2014/05
ER  -