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Background Intra-Body Communication (IBC), which utilizes the human body as the transmission medium to transmit signal, is a potential communication technique for the physiological data transfer among the sensors of remote healthcare monitoring system, in which the doctors are permitted to remotely access the healthcare data without interrupt to the patients’ daily activities. Methods This work...
We propose a simple method for the generation of signature matrices for a space-time spreading (STS) system with BPSK modulation, where a signature sequence assigned to a user is paritioned into segements and the segments are assigned to the transmit antennas of the user. We show that, if the signature sequences are linearly independent, the STS system does not has an error floor in its BER performance...
To guarantee the next generation narrow band systems from Ultra Wideband (UWB) interference, the coexistence issue between OFDM-MIMO system and UWB system is studied in the indoor environment, using physical layer model simulation method. Based on the corresponding standards, OFDM-MIMO and UWB system models are established with the SIMULINK tool. Considering the environment and system parameters,...
Considering the potential interference of ultra-wideband (UWB) on narrowband communication systems, this paper studies coexistence issue between UWB with both impulse radio (IR) and multiband (MB) modulation and IEEE802.11n system, using physical layer modelling strategy. According to the physical characteristics of UWB and the victim system, entire physical layer models are set up. Based on the requirements...
Cognitive Radio (CR) has attracted much attention for its ability allowing secondary users (SUs) to share the spectrum with licensed users (PUs). The precondition that PUs bear the coexistence of SUs is that the interference caused by SUs should be under a given threshold. Therefore the main challenge of CR is interference control or even interference cancellation. In this work we employ zero-forcing...
Concatenated coding schemes with interleavers consist of a combination of two simple constituent encoders and an interleaver. The parallel concatenation known as "turbo code" has been shown to yield remarkable coding gains close to theoretical limits, yet admitting a relatively simple iterative decoding technique. Serially concatenated convolutional code (SCCC) proposed by S.Benedetto may...
Summary form only given. In summary, we have proposed and demonstrated a lensless, high-resolution ROM architecture based on the phase conjugate holograms (PCH). The novel PCH technique can be used in both wavelength- and angle-multiplexing. Compared with conventional holographic systems for high-density data storage applications, the PCH greatly reduces the systems size, simplifies the architecture,...
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