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A novel ZigBee device identification method using physical radio frequency (RF) features of the wireless device is proposed in this paper. A differential constellation trace figure (DCTF) processing is proposed for RF fingerprint features extraction and a DCTF based clustering algorithms is employed for wireless device identification. Theoretical analysis shows that the proposed DCTF based identification...
Multimedia streaming applications have stringent Quality-of-Service (QoS) requirements. Typically, each packet is associated with packet delivery deadline. We are interested in designing feedback-based adaptive network coding schemes with the aim of minimizing decoding delay and video distortion in wireless broadcasting networks over the packet-erasure channel. In this paper, we first introduce the...
Buffer-aided network coding (NC) has been proposed as an effective method to improve retransmission efficiency. In this way, the correctly received undecodable NC combined retransmission packets are waited in the buffer for a future network decoding opportunity rather than delete. However, existing buffer-aided approaches fail to consider the buffer status and the latest feedback in the next round...
In LTE-Advanced downlink, multiuser (MU)-MIMO transmission with closed-loop precoding matrix indicator (PMI) selection and use of interference suppression ability of mobile station (MS) receiver are promising technologies to improve spectrum efficiency. In this paper, we investigate the throughput performance of a proposed MU-MIMO codebook that contains amplitude control information in addition to...
The train control system is a safety-critical embedded system. In this system, all buses and devices share the real time communication protocol, which is described in the standard IEC 61375. Many systems that comply the standard have been implemented and used in the real world railway, however, their safety checking is highly nontrivial. In this paper, we focus on the formal verification and implementation...
Due to the limited feedback amount, the codebook and feedback design is very important. In order to achieve better tradeoff between overhead and performance, the double codebook structures are proposed and discussed, where a final precoder W is determined by two precoders W1 and W2, which are selected from two different codebooks. In this paper, we give an overview of several double codebook structures...
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