In carrier-aggregation systems, digital baseband cancelation of self-interference generated by receiver nonlinearity requires the estimation of several reference signals contributions. As the nonlinearity order and frequency selectivity of the chip response increase, the number of reference signals significantly increases rendering the estimation of their contributions more complex. We propose ...

Space-division multiple access (SDMA) and orthogonal frequency-division multiplexing (OFDM) can be combined to design a robust communications system with increased spectral efficiency and system capacity. This combination is one of the most promising candidates for future wireless local area network implementations. However, one drawback of OFDM systems is the high peak-to-average power ratio, ...

in this paper, we propose a technique of artificial intelligence called adaptive neuro fuzzy inference system (anfis) for canceling maternal electrocardiogram (mecg) in fetal electrocardiogram extraction (fecg).this technique is used to estimate the mecg present in the abdominal signal of a pregnant woman. the fecg is then extracted by subtracting the estimated mecg from the abdominal signal. p...

Porcine circovirus type 2 (PCV2) has been recognised as an important pathogen in the pig industry world-wide. The virus was recently identified in Papuan pigs, yet information about the characteristics of Papuan PCV2 isolates is limited. The aim of the present study was to characterise the complete genome of Papuan PCV2 isolates. Viral DNA was isolated from 13 blood samples of village pigs from...

OBJECTIVE Previously we found dramatic strain-dependent differences in a low flow model of vascular remodeling. Specifically, intima formation in the left common carotid artery was approximately 30-fold greater in SJL compared to C3HeB/Fe (C3H/F) mice. We hypothesized that a few genes control intima formation in response to low flow. A C3H/F and SJL backcross resulted in broad range of N2 intim...

Adaptive noise cancellation (ANC) technique can removes thermal and shaped wideband quantization noise from the output of sigma-delta modulator and improves SNR and SFDR ratios. ANC filter more than desired signal passes harmonics of input signal caused by analog element such as operational amplifier of the integrator without any suppression and this issue causes less increment in SNR and SFDR ...

An elegant CMOS LNA design using feed-forward noise and distortion cancellation technique is presented in this paper. The design is implemented in 130nm CMOS technology. In comparison to other conventional technique the proposed LNA shows improvement in performance parameter such as NF, gain, stability and power dissipation. . In this paper a CMOS inverter along with resistive negative feedback...

To enhance speech intelligibility for people with hearing loss, aids will amplify using gains derived from evidence-based prescriptive methods, in addition to other advanced signal processing mechanisms. While the evidence supports use of aid intelligibility, these adjustments can also be detrimental sound quality, poor quality cited as a barrier device adoption. In general, an uncontrolled env...