This paper formulates the power allocation policy that maximizes the region of mutual informations achievable in multiuser downlink OFDM channels. Arbitrary partitioning of the available tones among users and arbitrary modulation formats, possibly different for every user, are considered. The policy, derived for slowly fading channels tracked by the base station, adopts the form of a multiuser mercury/waterfilling procedure that generalizes the single-user mercury/waterfilling introduced in [1].
Optimum Power Allocation for Multiuser OFDM with Arbitrary Signal Constellations / A., Lozano; Tulino, ANTONIA MARIA; S., Verdú. - ELETTRONICO. - (2006), pp. 1-6. (Intervento presentato al convegno 9th International Symposium on Spread Spectrum Techniques and Applications tenutosi a , Manaus, Amazon, Brazil nel Aug. 28-31, 2006.).
Optimum Power Allocation for Multiuser OFDM with Arbitrary Signal Constellations
TULINO, ANTONIA MARIA;
2006
Abstract
This paper formulates the power allocation policy that maximizes the region of mutual informations achievable in multiuser downlink OFDM channels. Arbitrary partitioning of the available tones among users and arbitrary modulation formats, possibly different for every user, are considered. The policy, derived for slowly fading channels tracked by the base station, adopts the form of a multiuser mercury/waterfilling procedure that generalizes the single-user mercury/waterfilling introduced in [1].I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
