id: 05675450
dt: j
an: 05675450
au: Zhang, Yong; Xu, Youyun; Cai, Yueming
ti: Power allocation for non-orthogonal decode-and-forward cooperation
    protocol.
so: Sci. China, Ser. F 52, No. 6, 1037-1042 (2009).
py: 2009
pu: Science in China Press, Beijing; Springer, Heidelberg
la: EN
cc: 
ut: non-orthogonal; decode-and-forward; power allocation; relaying
ci: 
li: doi:10.1007/s11432-009-0018-8
ab: Summary: This paper studies the power allocation problem for the
    non-orthogonal decode-and-forward (NDF) cooperation protocol with
    selection relaying. With the availability of the magnitudes of all
    channel gains at the source, the power allocation is explored that
    maximizes the mutual information between the source and destination
    subject to a total power constraint. The minimum power that avoids the
    outage of the relay is set as a condition, under which the power
    allocation problem becomes one of selecting the optimal one from
    several allocation factor triplets. It is shown that the power
    allocation scheme can provide considerable performance gain, and the
    non-orthogonal cooperation protocol is superior to the orthogonal
    protocol and direct transmission.
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