Zhenchuan Zhang

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A new precoding technique is proposed for STBC-VBLAST hybrid scheme in this paper. In principle of minimizing pair-error probability, we design the precoding matrix of this system using the features beam molding algorithm. This proposal takes advantage of CSI to reduce error rate and increase capacity. Simulation results show that this algorithm could(More)
A Remote Center of Motion (RCM) Robot can imitate medical operative of surgeons in Minimally Invasive Surgery (MIS) and improve surgical precision. Compared to serial robots, parallel robots are more compact, more isotropic and have better rigidity and accuracy. A design of a new type of RCM parallel robot is proposed in this paper, which including the(More)
This paper considers the SOVA and the Log-MAP for decoding Turbo codes. It primarily studies the differences between the two algorithms and discusses the suitability of combining both algorithms. The frames are first applied with SOVA with error detection. After a fixed maximum number of SOVA, the erroneous frames are continued with Log-MAP. The results(More)
Channel estimation is a key technology in wireless communication field, and estimation method based on pilot is one of the most common methods. To improve the performance of Channel estimation in OFDM system, different estimation algorithms are studied and an improved interpolation algorithm is proposed. The simulation results show that the improved(More)
Traditional wearable systems cannot communicate the location with the condition of people instantly, dynamically and accurately and it is also in low-speed, high-latency and unreliable; the system configuration information with location needs to be changed frequently. By emulating a distributed arithmetic, it analyzes the load of the communication network,(More)
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