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In this paper, throughput of hybrid automatic repeat request (HARQ) schemes with finite blocklength codes is studied for both constant-rate and ON-OFF discrete-time Markov arrivals under statistical queuing constraints and deadline limits. After analyzing the decoding error probability and outage probability, the distribution of transmission period is characterized, and the throughput expressions...
Recently, wireless caching techniques have been studied to satisfy lower delay requirements and offload traffic from peak periods. By storing parts of the popular files at the mobile users, users can locate some of their requested files in their own caches or the caches at their neighbors. In the latter case, when a user receives files from its neighbors, device-to-device (D2D) communication is enabled...
In this paper, throughput of hybrid automatic repeat request (HARQ) schemes is studied in the presence of Markovian data arrivals and statistical queuing constraints. In particular, two queuing models are considered. Specifically, when outage occurs, the transmitter keeps the packet, lowers its priority, and attempts to retransmit it later in the first queue model while the packet is discarded and...
With the rapid development of modern wireless communication systems, the visible light communication system using LED becomes popular due to the higher transmission speed and more reliable QoS. In this paper, we analyze the principle of VLC communication systems and make a field trial simulation using the single chip machine. The analysis of VLC indicates that the VLC communication system could help...
The use of adaptive interference cancellation (AIC) to solve the problem of the radiation interference of a transceiver system has attracted more and more attention. This paper analyzes the noise characteristics of a receiving system which uses an AIC technique for RF front-end filtering, and presents closed-form expressions for noise figure (NF). The comparison of differences between the noise performances...
Device-to-device (D2D) communication underlaid with cellular networks is a new paradigm, proposed to enhance the performance of cellular networks. By allowing a pair of D2D users to communicate directly and share the same spectral resources with the cellular users, D2D communication can achieve higher spectral efficiency, improve the energy efficiency, and lower the traffic delay. In this paper, transmission...
Interference alignment (IA) is a well-known transmission strategy for interference channels, with which the sum rate can linearly scale with the number of users at high signal-to-noise ratio (SNR). However, most existing works on IA considered only the maximization of the sum rate without taking into account the bit error rates (BER) performance. In this work, we firstly propose a novel IA algorithm...
Device-to-device (D2D) communication underlaid with cellular networks is a new paradigm, proposed to enhance the performance of cellular networks. By allowing a pair of D2D users to communicate directly and share the same spectral resources with the cellular users, D2D communication can achieve higher spectral efficiency, improve the energy efficiency, and lower the traffic delay. In this paper, we...
For a multistatic active sonar system, a modified weight tracking method based on particle filter was provided in this paper. Multistatic sonar systems usually consist of bistatic detection geometries. The Geometrical Dilution of Precision (GDOP) of each bistatic has its own distribution characteristics. For a hyperbola location algorithm, the contacts near the baseline of the bistatic and the contacts...
Large-size infrared touch screen has long response time and external light interference problems. To solve these problems, this paper proposes a method that divides whole infrared touch screen into several separate scanning units and a master module. Each scanning unit completes touch scanning and touch information processing within its own range. Scanning units are parallel working. Master module...
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