dc.contributor.author |
Perez-Neira, AI |
en |
dc.contributor.author |
Ibars, C |
en |
dc.contributor.author |
Serra, J |
en |
dc.contributor.author |
del Coso, A |
en |
dc.contributor.author |
Gomez-Vilardebo, J |
en |
dc.contributor.author |
Caus, M |
en |
dc.contributor.author |
Liolis, KP |
en |
dc.date.accessioned |
2014-03-01T02:02:57Z |
|
dc.date.available |
2014-03-01T02:02:57Z |
|
dc.date.issued |
2011 |
en |
dc.identifier.issn |
18744907 |
en |
dc.identifier.uri |
https://dspace.lib.ntua.gr/xmlui/handle/123456789/29331 |
|
dc.subject |
MIMO |
en |
dc.subject |
Propagation channel modeling |
en |
dc.subject |
Satellite communications |
en |
dc.subject |
Space time coding techniques |
en |
dc.title |
MIMO channel modeling and transmission techniques for multi-satellite and hybrid satellite-terrestrial mobile networks |
en |
heal.type |
journalArticle |
en |
heal.identifier.primary |
10.1016/j.phycom.2011.04.001 |
en |
heal.identifier.secondary |
http://dx.doi.org/10.1016/j.phycom.2011.04.001 |
en |
heal.publicationDate |
2011 |
en |
heal.abstract |
The Quality of Service (QoS) in land mobile satellite (LMS) communications drops drastically in the presence of shadowing and multipath fading. This paper studies two promising multiple-input multiple-output (MIMO) schemes, along with specific transmission techniques, aimed at overcoming this problem. First, specific proposals for a dual-satellite distributed MIMO scheme are studied based upon delay-tolerant and spectral-efficient schemes. As a second alternative, a hybrid satellite-terrestrial scheme is studied with specific proposals for MIMO processing. In order to carry out a performance assessment the paper addresses related MIMO satellite propagation channel modeling issues which lead to a new mathematical model to accommodate the multi-satellite transmission. In both cases, we quantify and conclude the MIMO gains in terms of bit error rate (BER) and spectral efficiency for urban and suburban environments. The transmitted air-interfaces in both proposed MIMO schemes are DVB-SH standard compatible. The analytical results have been validated by means of Monte Carlo simulations. © 2011 Elsevier B.V. |
en |
heal.journalName |
Physical Communication |
en |
dc.identifier.doi |
10.1016/j.phycom.2011.04.001 |
en |
dc.identifier.volume |
4 |
en |
dc.identifier.issue |
2 |
en |
dc.identifier.spage |
127 |
en |
dc.identifier.epage |
139 |
en |