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In this work, we investigate the system model, key enabling technique, and the associated performance for an Nr × Nt dual polarized MIMO (DP-MIMO) based communication system, wherein only imperfect channel state information is available at the transmitter. The DP-MIMO channel involves the imperfect spatial fading and perfect polarization fading. At the transmitter, the precoding scheme based on oblique...
The ease of acquiring hardware-based link quality indicators (LQIs) is an alluring property for fast channel estimation in time- and safety-critical wireless sensor network (WSN) applications, such as closed-loop control and interlocking. The two rudimentary hardware-based channel quality metrics, i.e., received signal strength (RSS) and LQI, are the key constituents of channel estimation and a plethora...
In this paper, we propose a solution to the carrier frequency offset (CFO) estimation based on data dependent superimposed training scheme for Orthogonal Frequency Division Multiplexing (OFDM) systems. The proposed CFO estimation can improve the bandwidth efficiency compared with traditional pilot assistant scheme because it consumes no extra bandwidth for the training sequence is superimposed to...
An energy detection-based impulse radio ultra-wideband (IR-UWB) system is proposed in this study. The related synchronization process is investigated on the pulse and frame level respectively. According to the system structure, an optimal transmission mode is described in a typical indoor environment, which could take the balance in the system reliability and effectivity. Meanwhile, the referenced...
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