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Jingwen Zhang - IEEE Xplore Author Profile

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Localization techniques based on time of arrival (TOA) and angle of arrival (AOA) have been widely used in mobile communication systems and the localization accuracy can suffer from severe path loss and blockage. The mobility of UAVs and the signal redirection capabilities of reconfigurable intelligent surfaces (RISs) can be utilized to reduce these negative effects. In this paper, we propose a mu...Show More
Recent years have witnessed an increasing interest in leveraging reconfigurable intelligent surfaces (RISs) to enhance the capabilities of integrated sensing and communication (ISAC) systems. RISs are advantageous in improving detection and communication performance, especially in challenging environments characterized by nonLine of Sight (NLOS) conditions and dense urban settings. In this article...Show More
The deployment of mobile edge computing services in LEO satellite networks achieves seamless coverage of computing services. However, the time-varying wireless channel conditions between satellite–terrestrial channels and the random arrival characteristics of ground users’ (GUs) tasks bring new challenges for managing the LEO satellite’s communication and computing resources. Facing these challeng...Show More
In various location-based Internet of Things (IoT) services, it is required to localize a large number of energy-limited devices simultaneously and accurately. In order to achieve this goal, a reconfigurable intelligent surface (RIS)-assisted positioning method for multiple IoT devices is proposed, where the signals transmitted by the users reach the base station (BS) along the direct path and the...Show More
The unbalanced channel gain caused by multiple antennas in the multiple-input multiple-output (MIMO) wireless system will cause multi-stream data to pass through channels with an unbalanced signal-to-noise ratio (SNR). In this paper, we proposed a design methodology for the interleaver in the bit-interleaved coded modulation (BICM) systems deploying quasi-cyclic low-density parity-check (QC-LDPC) ...Show More
In order to achieve wide coverage, high-speed communication and the global interconnection of everything, satellites communications and 5G mobile communication will be complementary and integrated in the future. Aiming at different channel conditions, this paper designs 21 modulation and coding schemes in satellite-integrated 5G communication system through simulation. In addition, in order to ada...Show More
The combination of reconfigurable intelligent surface (RIS) and millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) has drawn much attention for future wireless networks. In this paper, the RISs are used to assist the base station (BS) to localize the user equipment (UE) in the mmwave MIMO systems, where the reference signals sent by the UE are measured by the BS and the information of...Show More
In the fifth generation (5G) enhanced mobile broadband (eMBB) scenario, mobility has been a key characteristic and high mobility may cause fast variation of channel. In order to better track channel variation, we use Gauss-Markov process to model the channel. Then, to obtain a balance between resource overhead and system performance for frequency division duplexing (FDD) physical downlink shared c...Show More
Recently, an iterative belief propagation-convolutional neural network (BP-CNN) decoder has been proposed to process the low-density parity-check (LDPC) decoding under correlated noise. However, in many practical scenarios, correlated noise may have extra special characteristics, such as impulse. Therefore, when used in such scenarios, there will be some space for the performance improvement of th...Show More
Aiming at reducing unnecessary packet losses of transport block (TB) level hybrid automatic repeat request (HARQ), we propose a connected-coding retransmission (CCR) scheme for low-density parity-check (LDPC) codes in 5G data channels. Once the transmission of a TB, which is divided into one or several code blocks (CBs), was failed, we introduce failed CBs information into the parity bits of the n...Show More