Yuzhen Huang

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We treat pseudo-factorization of a multivariate polynomial <italic>p</italic> over C as an overdetermined bilinear system for the coefficients of the factors. If the specified data (coefficients of <italic>p</italic>) are sufficiently close to the manifold of <italic>consistent</italic> data we project onto it by solving a well-chosen subsystem (otherwise(More)
In this paper, we propose transmit antenna selection with maximal ratio combining (TAS/MRC) in dual-hop decodeand-forward (DF) spectrum sharing relaying networks with primary user’s interference and outdated channel state information (CSI). In this network, a single antenna which maximizes the received signal-to-noise ratio (SNR) is selected at the(More)
This paper investigate the impact of primary transceivers on the outage performance of a dual-hop decode-and-forward (DF) spectrum sharing relay system with multiple secondary user (SU) destinations in Nakagami-m fading channels. To doing so, we derive new exact and asymptotic closed-form expressions for the outage probability of spectrum sharing relay(More)
-general-order transmit antenna selection to enhance the secrecy performance of multiple-input-multiple-output multieavesdropper channels with outdated channel state information (CSI) at the transmitter. To evaluate the effect of the outdated CSI on the secure transmission of the system, we investigate the secrecy performance for two practical scenarios,(More)
Information about primary users (PUs) location is very important in cognitive radio networks (CRNs) as it can be used to avoid harmful interference to the primary users, while be exploited to improve the spectrum utilization at the same time. In this paper, a survey of range-based localization methods is presented for secondary users (SUs) in CRNs to(More)