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The feasibility of practical in-band full-duplex radios has recently been demonstrated experimentally. One way to leverage full-duplex in a network setting is to enable three-node full-duplex, where a full-duplex access point (AP) transmits data to one node yet simultaneously receives data from another node. Such three-node full-duplex communication, however, introduces inter-client interference,...
We demonstrate the nanoparticle analyses based on elongated-abruptly-tapered micro fiber interferometer. The charged nanoparticles generating from incomplete combustion of carboncontaining compounds are stringently attached onto micro interferometer at equal distance separation to analyze nanoparticle sizes.
The feasibility of practical in-band full-duplex radios has recently been demonstrated experimentally. One way to leverage full-duplex in a network setting is to enable three-node full-duplex, where a full-duplex access point (AP) transmits data to one node yet simultaneously receives data from another node. Such three-node full-duplex communication however introduces inter-client interference, directly...
The algorithm of lock-in-amplifier adaptive noise canceller is a method of eliminating the power-line interference, which is based on the lock-in amplifier in the hardware circuits. It could be used to calculate the amplitude, frequency and phase of the interference signals accurately. And the de-noised signals will be obtained by subtracting the reconstructed interference signals from the original...
In this paper, we present a multi-antenna time division multiplexing (TDM) system based on passive UHF RFID, which consists of a reader based on Intel R1000 UHF RFID Development Platform, a number of tags and three groups of antennas. The RSSI localization method is adopted. In order to accomplish passive positioning, some improvements are introduced. We propose the concept of setting the dynamic...
Counting or estimating the number of tags is crucial for RFID system. Researchers have proposed several fast cardinality estimation schemes to estimate the quantity of a batch of tags within a short time frame. Existing estimation schemes scarcely consider the privacy issue. Without effective protection, the adversary can utilize the responding signals to estimate the number of tags as accurate as...
This paper investigates the impact of carrier frequency offset (CFO) on Single Carrier wireless communication systems with Frequency Domain Equalization (SC-FDE). We show that CFO in SC-FDE systems causes irrecoverable channel estimation error, which leads to inter-symbol-interference (ISI). The impact of CFO on SC-FDE and OFDM is compared in the presence of CFO and channel estimation errors. Closed...
This paper presents performance comparison of register allocation algorithms in DBT (dynamic binary translation). A group of register allocation algorithms including SRA (simple register allocation), GRA (global register allocation), NRA (next-use register allocation) and SGRA (simplified graph-coloring register allocation) are implemented in a DBT system and evaluated. SGRA is a simplified version...
This paper introduced an algorithm to track and eliminate the power line interference. The model of the algorithm came from the lock-in-amplifier (LIA) hardware circuit. Inheriting the LIA 's excellency of inhibiting the noise, this algorithm could precisely detect the amplitude, frequency and phase of the interference signal in the corrupted ECG. This algorithm, which does not need to avoid the QRS...
Global position system (GPS) adaptive array antenna forms null beam to suppress the interference in order to communicate normally. The nulling beamforming model is actually an optimization technique. Because the traditional adaptive algorithms usually obtain the partial optimum solution, in this letter, we propose adaptive ant colony algorithm (AACA) can find the desired solution which is a global...
MIMO systems may achieve spatial multi-user access using singular value decomposition (SVD) MIMO techniques [J.Z. Ying and K.B. Letaief, 12005; J. Kim and J.M. Cioffi, 2000]. The MIMO OFDM systems multiplex the users both in the frequency and the spatial domains. Hence, the co-channel interference caused by the sub-carrier reuse may lower the system's performance. For MIMO OFDM systems with co-channel...
A new algorithm for the optimal pattern synthesis of arbitrary arrays with prescribed broad nulls is presented, this method is similarly to the quadratic beampattern constrains method. The approach is to assume that the given array elements are used as elements of an adaptive array, with the adaptive beamforming theory, angles of interferences can be obtained, the null width and gain is controlled...
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