Resource optimization in the decode-and-forward multiple relay-assisted channel
Visualitza/Obre
Cita com:
hdl:2117/9622
Tipus de documentText en actes de congrés
Data publicació2008
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
The half-duplex multiple relay-assisted channel is investigated,
where the relays work under decode-and-forward (DF) in
time/frequency orthogonal resources. Achievable rates are
optimized with respect to the transmitted powers and with respect
to the fraction oftimelbandwidth allocated to the relay-receive and
the relay-transmit phases. Different transmission strategies
associated to different complexities at the receivers are considered.
For each case we take into account either the synchronous or
asynchronous transmission of the terminals, depending on the
availability of channel state information (CSI) in transmission
from all links. We find that all the cases can be formulated as a
unique convex problem, and we compare the achievable rates thus
obtained. We finally derive under which conditions the use of two
DF relays brings significant gains over the use of one.
CitacióVidal, J.; Agustín, A. Resource optimization in the decode-and-forward multiple relay-assisted channel. A: IEEE Signal Processing Advances in Wireless Communications. "SPAWC 2008". Pernambuco: 2008, p. 436-440.
ISBN978-1-4244-2045-2
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
ResourceOptimization.pdf | 1,471Mb | Visualitza/Obre |