Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Dimas Mavares"'
Publikováno v:
Annals of Telecommunications. 77:677-688
Publikováno v:
Annals of Telecommunications. 75:59-66
In this paper, the space-time code selection technique for multiple-inputs single-output systems is optimized using particle swarm optimization. We considered both variable-rate and constant-rate strategies. For a variable-rate technique, we address
Publikováno v:
2015 Asia-Pacific Conference on Computer Aided System Engineering.
A channel prediction based space-time code selection technique for multiple input-single output systems is proposed. This transmit antenna diversity technique selects both the space-time code and the number of transmitter antennas using estimated and
Publikováno v:
Scopus-Elsevier
This paper presents the measurement and statistical analysis of the temporal variations of the radio channel defined by a fixed link at 3.5 GHz in suburban areas. The analysis provides the required information about the temporal stability of the chan
Autor:
Dimas Mavares, Rafael P. Torres
Publikováno v:
2006 Proceedings of the First Mobile Computing and Wireless Communication International Conference.
In this paper a space-time code selection approach for transmit antenna diversity systems is proposed. The receiver compares the equivalent SISO channel envelopes with a set of predetermined threshold levels, decides on the antennas to be used and se
Autor:
Rafael P. Torres, Dimas Mavares
Publikováno v:
ISWCS
A simple space-time code selection scheme for TAD-OFDM systems is proposed. The space-time code for transmission is selected by comparing the equivalent SISO channels with a set of predetermined threshold levels. A threshold level search procedure ba
Autor:
Dimas Mavares, Rafael P. Torres
Publikováno v:
5th European Personal Mobile Communications Conference 2003.
This paper shows analytically and through bit error rate (BER) simulations that both the G/sub 2/ space-time block (STB) and the maximal ratio receive combining (MRRC) systems suffer a BER performance degradation as a consequence of channel estimatio
Channel estimation error effects on the performance of STB codes in flat frequency rayleigh channels
Autor:
Rafael P. Torres, Dimas Mavares
Publikováno v:
Scopus-Elsevier
The paper presents expressions for the received signals for rate 1, 1/2 and 3/4 space-time block codes in the presence of channel estimation errors and over mutually correlated flat frequency Rayleigh fading channels. It is shown analytically and thr
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http://www.scopus.com/inward/record.url?eid=2-s2.0-4143099224&partnerID=MN8TOARS
Conference
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