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We investigate the filter design problem for discretetime interval uncertain positive systems under the ℓ1 performance in this paper. First, we propose some conditions expressed by linear programming to ensure the asymptotic stability and the ℓ1 performance for given positive systems. Then, we establish a novel filter design approach and an iterative algorithm to obtain the desired filter for interval...
It has attracted much attention recently that cache-enabled users exploit device-to-device (D2D) communications to allow content sharing between them, resulting in higher spectral efficiency and lower energy consumption. However, due to the various interests of users, it is helpful for a user to cache the desired contents of its neighboring users by predicting their interests. Moreover, due to the...
The rapid development of information technology to bring convenience to people but also to the data and information security has brought great challenges, how to protect the data, safe communication is a popular research direction. In the paper, we propose a necessary and sufficient condition for constructing an invertible matrix on the finite field, which can produce a large number of reversible...
As a promising technology for 5G, non-orthogonal multiple access (NOMA) has attracted much attention from academia and industry due to its superior spectral efficiency and user fairness, but the error propagation in successive interference cancellation decoding (SIC) might seriously restrict its performance. In this paper, we propose to utilize power allocation to mitigate the impact of imperfect...
In existing uplink non-orthogonal multiple access (NOMA) schemes, complicated user pairing schemes are required to ensure differentiated arriving power at the access point, which may incur considerable scheduling overhead. To address this issue, we propose a novel rate-splitting NOMA scheme in this paper. In particular, each user information is “split” into multiple flows, which equivalently form...
Side reservoir can improve electromigration (EM) lifetime of copper interconnects. In this work, finite element method (FEM) simulations for interconnect structures with cathode end-of-line reservoir and side reservoir respectively have been conducted to study the side reservoir effects on EM lifetime. It is demonstrated that side location is most likely to have void failure and side reservoir can...
In this paper, we design a fully non-orthogonal communication framework for spectral-efficient massive access. Firstly, we propose a non-orthogonal channel estimation (NOCE) method, which can achieve a balance between channel state information (CSI) accuracy and the length of pilot sequence. Then, we present a massive multiple-input multiple-out (MIMO) non-orthogonal multiple access (NOMA) scheme...
From the perspective of national security, legitimate government agencies have long been committed to enforcing powerful surveillance measures on suspicious individuals or communications. This paper investigates a wireless legitimate surveillance system, where a full-duplex multi-antenna legitimate monitor aims to eavesdrop on a dubious communication link between a suspicious pair via proactive jamming...
A quasi-orthogonal space-time block code (Q-OSTBC) has been proposed to achieve a better multiplexing-diversity tradeoff. With unequal diversity order of symbols, the code can effectively mitigate the error propagation in the successive interference cancellation (SIC) based detector for each user. As well known, non-orthogonal multiple access (NOMA) has been recognized as a promising technique for...
Zebrafish has been demonstrated to be an important model organism in the study of genetics, diseases and drugs. For investigating drug toxicity, we need to inject foreign substances into specific organs within zebrafish larvae. Traditionally, zebrafish larva microinjection is conducted manually and requires operators to control larva's orientation with flexible ends, which is time-consuming, labor-intensive,...
In this article, the output-feedback stabilization problem is investigated for discrete-time interval uncertain positive systems under the performance. First, we propose some conditions expressed by linear programming to ensure the asymptotic stability and the ℓ1 performance for given positive systems. Then, we establish a novel design approach and an iterative algorithm to obtain the desired output-feedback...
Frequency bands above 6GHz are receiving great attention for 5G mobile radio communications due to the potential availability of enormous channel bandwidths. Various multi-carrier and single-carrier waveforms are being considered as potential candidates for 5G radio interface. When evaluating the waveform performance at high carrier frequency and large bandwidths, the inclusion of realistic hardware...
Despite the increased capabilities of mobile devices, resource-demanded mobile applications still transcend what can be accomplished on a single device. As such, mobile device cloud (MDC), an environment that enables computation-intensive tasks to be performed among a set of nearby mobile devices, offers a promising architecture to support real-time mobile applications. To stimulate mobile devices...
Frequencies above 6 GHz are being considered by mobile communication industry for the deployment of future 5G networks. However in the higher carrier frequencies, especially the millimeter-wave frequencies (above 30 GHz), there can be severe degradations in the transmitted and received signals due to Phase Noise (PN) introduced by the local oscillators. In this paper, the effect of PN has been investigated...
This paper proposes the use of Stacked Denoising Autoencoder to predict the direction of movement of stock indexes based on the historical and volume data of the underlying stocks. The Stacked Denoising Autoencoder is a deep learning method widely used in the field of computer vision which is capable of learning a compact feature representation of the data for stock index prediction. The Hybrid Gravitational...
In this paper, we present a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) based backhaul link in the presence of hardware impairments, such as phase noise (PN), residual carrier frequency offset (RCFO), and sampling frequency offset (SFO). Focusing on these adverse hardware effects on the MIMO-OFDM system, we propose corresponding signal processing algorithms...
In this paper, the effects of oscillator phase noises on multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems are studied. It is shown that phase noises of common oscillators at the transmitter and at the receiver have the same influence on the performance of (single-stream) beamforming MIMO-OFDM systems. When each antenna is equipped with an independent...
The globalization of the semiconductor industry has caused many challenges to prevent intellectual property (IP) piracy. Logic encryption is an effective technique for hardware IP protection. Researchers have proposed various logic encryption techniques, which introduce large overheads in delay, power and area. This paper aims to significantly reduce these overheads by proposing a novel gate replacement-based...
This work investigates the antenna mutual coupling effect on multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems with oscillator phase noises. Since the antenna correlation when taking the mutual coupling effect into account is smaller than that when the mutual coupling effect is omitted, it is shown that, at small antenna separations, the error rate performance...
In this paper, the error rate performance of a multiple-input multiple-output (MIMO) wireless local area network (WLAN) system is evaluated in the indoor hotspot scenario. A realistic three-port MIMO antenna is used at the access point (AP), whereas dipole antennas are assumed at the user terminal. The effects of the channel delay spread and oscillator phase noise on the MIMO WLAN system are studied...
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