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[PB10] Weigthed sum throughput maximization in multi-cell OFDMA networks
Revue Internationale avec comité de lecture : Journal IEEE Transactions on Vehicular Technology , vol. 59(2), pp. 896-905, 2010
motcle:
Résumé:
This paper addresses resource allocation for
weighted sum throughput maximization (WSTM) in multicell orthogonal
frequency-division multiple-access (OFDMA) networks.
Two suboptimal algorithms with polynomial-time complexity are
provided. First, we determine a graph-based subcarrier allocation
algorithm allowing joint transmission of two interfering
links whenever such a transmission fulfills the pairwise WSTM
objective. An analytical expression of the optimal power allocation
with two interfering cells in single-carrier transmission
is obtained, and the capacity region study serves as the basis to
build the interference graph. Second, we present a distributed
power-control algorithm suitable for any signal-to-interferenceplus-
noise ratio (SINR) regime. It rejects users and subcarriers
with weighted SINR that is too low before operating in the high
SINR regime for the remaining users and subcarriers. Both
algorithms and their combination are assessed via dynamic
simulations, where the weight of each user is proportional to its
queue length. They are shown to significantly decrease resource
consumption and efficiently balance users’ queue lengths.
Equipe:
laetitia
BibTeX
| @article { | |||
| PB10, | |||
| title | = | "{Weigthed sum throughput maximization in multi-cell OFDMA networks}", | |
| author | = | "M. Pischella and J. Belfiore", | |
| journal | = | "IEEE Transactions on Vehicular Technology ", | |
| year | = | 2010, | |
| volume | = | 59, | |
| number | = | 2, | |
| pages | = | "896-905", | |
| } | |||
