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 Capacity comparison of relay-assisted schemes with and without direct path
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6292

title: Capacity comparison of relay-assisted schemes with and without direct path
authors: Teodoro, Sara
Silva, Adão
Gil, João M.
Gameiro, Atílio
keywords: Cooperative diversity
Relay
Equalize-and-forward
Amplify-and-forward
STBC
Outage capacity
Virtual MIMO
issue date: 2009
abstract: In this paper we analyse two different VMIMO schemes: In the first one we consider 2 relays nodes employing a distributed space-time block coding and in the second one just a single relay node is considered. For the first approach we also investigate the impact on the system performance when the direct path (between source and destination) is considered. We assume that all communication nodes are equipped with single antenna. Two types of relay protocols are considered: Equalize-and-Forward and Amplify-and-Forward. The instantaneous normalized capacity for these schemes is derived and outage capacities are compared with a colocated MISO and conventional SISO systems, considering different propagation scenarios. Numerical results have shown that, for some scenarios investigated, VMIMO schemes achieve higher capacity than the colocated MISO system.
URI: http://hdl.handle.net/10773/6292
ISBN: 978-1-905824-12-0
publisher version/DOI: www.ICT-MobileSummit.eu/2009
source: ICT-MobileSummit 2009
appears in collectionsDETI - Comunicações

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