In fast fading channel, for reducing detection complexity, a nearly banded channel is adopted in many literatures. For the sake of designing a nearly banded channel perfectly, the authors deduce the relationship between the bandwidth of the nearly banded channel matrix and normalised Doppler frequency shift under certain power of negligible intercarrier interference (ICI) coefficients. […]

LVCMOS is Low Voltage Complementary Metal Oxide Semiconductor. I/O standard is used to match the impedance of input line, output line, input port, output port and device in order to avoid transmission line reflection. Selection of energy efficient I/O standard is required to make energy efficient ROM. LVCMOS12 is the most optimal IO standard. Whereas, […]

In this paper, we present a laser scheme without cavity in a 10 cm cesium cell as a potential active optical frequency standard. Since no cavity is applied, the stimulated light is emitted from the atoms directly and the center frequency of output laser light is solely determined by atoms without cavity pulling. The threshold […]

We propose a statistical information based approach to enhance the performance of the non-iterative quasi-maximumlikelihood (QML) receiver (detector plus decoder) recorded at the output of the channel decoder for coded multiple-input multiple-output (MIMO) systems. As an illustrative example, the QR decomposition with an M-algorithm (QRD-M) based non-iterative QML receiver is employed in this correspondence. We […]