Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/538
Título: Capacity Enhancement Using MIMO Antenna Arrays in Realistic Macro-Cellular Urban Environment
Autor: Vieira, Pedro Manuel de Almeida Carvalho
Queluz, Paula
Rodrigues, António
Palavras-chave: MIMO
Channel model
Antenna arrays
Water-filling
Data: Out-2010
Editora: Springer
Citação: Vieira P, Queluz P, Rodrigues A.Capacity Enhancement Using MIMO Antenna Arrays in Realistic Macro-Cellular Urban Environment.Wireless Personal Communications. 2010; 55 (2): 201-224.
Relatório da Série N.º: 2
Resumo: In MIMO systems the antenna array configuration in the BS and MS has a large influence on the available channel capacity. In this paper, we first introduce a new Frequency Selective (FS) MIMO framework for macro-cells in a realistic urban environment. The MIMO channel is built over a previously developed directional channel model, which considers the terrain and clutter information in the cluster, line-of-sight and link loss calculations. Next, MIMO configuration characteristics are investigated in order to maximize capacity, mainly the number of antennas, inter-antenna spacing and SNR impact. Channel and capacity simulation results are presented for the city of Lisbon, Portugal, using different antenna configurations. Two power allocations schemes are considered, uniform distribution and FS spatial water-filling. The results suggest optimized MIMO configurations, considering the antenna array size limitations, specially at the MS side.
Peer review: yes
URI: http://hdl.handle.net/10400.21/538
ISSN: 0929-6212
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Artigos

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