Esta pesquisa versa sobre os sistemas MISO e SIMO, cujo objetivo geral consistiu em compreender a funcionalidade desses vista da comunicação sem fio, partir de uma perspectiva comparativa entre referidos sistemas, levando consideração as suas especificidades, vantagens desvantagens. Para isso, metodologia adotada se fundamentou bibliográfica, consulta livros, revistas, periódicos, dissertações ...

Now-a-days, intense research is going on two-hop wireless link under different fading conditions with its remedial measures. In this paper work, a two-hop link under three different conditions is considered: (i) MIMO on both hops, (ii) MISO in first hop and SIMO in second hop and finally (iii) SIMO in first hop and MISO in second hop. The three models used here give the flexibility of using STB...

The title compound, [Co(C(2)H(8)N(2))(3)](2)[SiMo(8)V(4)O(40)(VO)(2)]·6H(2)O, was prepared under hydro-thermal conditions. The asymmetric unit consists of a transition metal complex [Co(en)(3)](3+) cation (en is ethyl-enediamine), one half of an [SiMo(8)V(4)O(40)(VO)(2)](6-) heteropolyanion, two solvent water mol-ecules in general positions and two half-mol-ecules of water located on a mirror p...

The Diversity Multiplexing Tradeoff (DMT) [1] is a compact, yet elegant framework to capture the performance of wireless communication systems at asymptotically high signal to noise ratios (SNR). Recent application of DMT at finite SNR [2] makes the DMT a versatile framework. We have analyzed the DMT for the rate-adaptive SIMO maximal-ratio combining (SIMO-MRC) for asymptotic and non-asymptotic...

The asymmetric unit of the title compound, [Ni(C(8)H(7)N(3))(3)](2)[SiMo(12)O(40)]·4H(2)O, consists of a complex [Ni(C(8)H(7)N(3))(3)](2+) cation, half of a Keggin-type heteropolyanion [SiMo(12)O(40)](4-) and two uncoordinated water mol-ecules. The Ni(2+) cation is surrounded in a slightly distorted octa-hedral coordination by six N atoms from three chelating 3-(2-pyrid-yl)-1H-pyrazole ligands....

This paper proposes per-tone equalization methods for single carrier block transmission with cyclic prefix (SC-CP) systems. Minimum mean-square-error (MMSE) based optimum weights of the per-tone equalizers are derived for SISO (single-input single-output), SIMO (single-input multipleoutput), and MIMO (multiple-input multiple-output) SC-CP systems. Unlike conventional frequency domain equalizati...

This current paper addresses the noncooperative distributed wireless relay networks under a jamming environment. The amplifyand-forward single-input multiple-output (SIMO) and multiple-input single-output (MISO) schemes are considered with multiple N-relay nodes. The main contribution of this paper is to determine the optimal relay precoder vectors by minimizing the minimum mean square error (M...

The paper deals with design of low-order RC filters working in current mode (CM). As the basic building blocks, transconductors (OTA) with single input and multiple outputs are used. One-loop, two-loop and multi-loop structures are discussed. The adjoint VM-CM transformation is used to obtain new circuits from known VM prototype. The designed structures are verified by Pspice simulations using ...