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BEGIN:VEVENT
UID:346@lincs.fr
DTSTART;TZID=Europe/Paris:20171115T140000
DTEND;TZID=Europe/Paris:20171115T150000
DTSTAMP:20171110T083603Z
URL:https://www.lincs.fr/events/optimal-joint-subcarrier-and-power-allocat
 ion-in-power-domain-noma-is-strongly-np-hard-complexity-analysis/
SUMMARY:Optimal Joint Subcarrier and Power Allocation in Power-Domain NOMA
 is Strongly NP-Hard: Complexity Analysis
DESCRIPTION:Non-orthogonal multiple access (NOMA) is a promising radio
 access technology for 5G. It allows several users to transmit on the same
 frequency and time resource by performing power-domain multiplexing. At the
 receiver side\, successive interference cancellation (SIC) is applied to
 mitigate interference among the multiplexed signals. In this way\, NOMA can
 outperform orthogonal multiple access schemes used in conventional cellular
 networks in terms of spectral efficiency and allows more simultaneous
 users. We investigate the computational complexity of joint subcarrier and
 power allocation problems in multi-carrier NOMA systems. In this talk\, we
 will show that these problems are strongly NP-hard for a large class of
 objective functions\, namely the weighted generalized means of the
 individual data rates. This class covers the popular weighted sum-rate\,
 proportional fairness\, harmonic mean and max-min fairness utilities. This
 result implies that the optimal power and subcarrier allocation cannot be
 computed in polynomial time in the general case\, unless P = NP.
 Nevertheless\, we present some heuristics and show their performance
 through numerical results.
CATEGORIES:Seminars
LOCATION:LINCS Seminars room\, 23\, avenue d'Italie\, Paris\, 75013\,
 France
GEO:48.828400;2.356897
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=23\, avenue d'Italie\,
 Paris\, 75013\, France;X-APPLE-RADIUS=100;X-TITLE=LINCS Seminars
 room:geo:48.828400,2.356897
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TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:STANDARD
DTSTART:20171029T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
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