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Generalized frequency division multiplexing (GFDM) with the flexible structure is one of the promising candidates for the fifth generation wireless communication system. This paper focuses on training sequence design that is used in the estimation of in-phase(I) and quadrature(Q) imbalance parameters on GFDM receivers as well as frequency selective channel. Combining with the structure of low complexity...
Analog front-ends for wide-band wireless communication systems exhibit frequency-selective inphase and quadrature (I/Q) imbalance due to asymmetry in devices and layouts. This imbalance leads to a significant degradation of the performance in orthogonal frequency division multiplexing (OFDM) systems. In this paper, using a loop-back method, a joint transmitter (TX) and receiver (RX) estimation and...
In this article, the problem of nonperiodic tracking-transition switching with preview is considered, where, multiple switching between tracking and transition occur, and the output needs to track desired trajectory during the tracking sections, then rapidly transits to another point during the transition sections with no post-transition oscillations. Due to the coupling between the control of the...
In a wireless regional area networks (WRAN) network, the presence of a wireless microphone (WM) signal must be detected as a primary user. However, very narrow bandwidth and low power makes it difficult to sense a WM signal. In this paper, a singular value decomposition (SVD)-based approach is presented to sense and estimate a WM signal. After performing SVD on the received data matrix, the presence...
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