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Title in Portuguese: Greedy Algorithm for Stream Selection in a MIMO Interference Channel
Title: Greedy Algorithm for Stream Selection in a MIMO Interference Channel
Author: Guimarães, Francisco Rafael Vasconcelos
Moreira, Darlan Cavalcante
Freitas Júnior, Walter da Cruz
Silva, Yuri Carvalho Barbosa
Cavalcanti, Francisco Rodrigo Porto
Keywords: Interference Alignment
Stream Selection
Sum Capacity
Issue Date: 2015
Citation: GUIMARÃES, Francisco Rafael Vasconcelos; MOREIRA, Darlan Cavalcante; FREITAS JÚNIOR, Walter da Cruz; SILVA, Yuri Carvalho Barbosa; CAVALCANTI, Francisco Rodrigo Porto. Greedy algorithm for stream selection in a MIMO Interference Channel In: SIMPÓSIO BRASILEIRO DE TELECOMUNICAÇÕES - SBrT, XXXIII., 01-04 set. 2015, Juiz de Fora, MG. Anais[…], Juiz de Fora, MG., 2015.
Abstract: In this paper, a Greedy stream selection algorithm is proposed for a MN K-user Multiple Input Multiple Output Interference Channel (MIMO-IC). The proposed algorithm tries to find the “best stream” allocation by removing streams with low signal-to-interference-plus-noise ratio (SINR) until the system capacity cannot be increased. The algorithm runs with the Minimum Mean Square Error Interference Alignment (MMSE-IA) algorithm and its performance is compared with the exhaustive search by Monte Carlo simulations in two different scenarios. The first scenario is refereed as symmetric attenuation scenario which no path loss is considered among the network nodes. In the second one, by its time, the signal strength is function of the distance, thus more streams are allowed to be transmitted. The results show that the Greedy algorithm outperforms, in both scenarios, any fixed solution and it achieves a good Sum Capacity performance when compared with the best stream allocation (exhaustive search), but with less computational complexity.
metadata.dc.type: Artigo de Evento
Appears in Collections:DETE - Trabalhos apresentados em eventos

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