Fractional Delay Filter Based Wideband Self- Interference Cancellation
نویسنده
چکیده
This paper introduce Fractional Delay Filter (FD) into SelfInterference Cancellation based Full-Duplex communication system. The paper explains that an accurate delay of baseband signal in cancellation channel is very important for the performance of self-interference cancellation. It emphasise that a delay other than a phase alignment can extend the cancellation to wideband with reasonable performance. Simulations proved the feasibility of application of FD in self-interference based Full-Duplex system.
منابع مشابه
Fractional Delay Digital Filters
The chapter goal is focused to introduce the concept of fractional delay filters (FDF), as well as a concise description of most of the existing design techniques. For this purpose, several illustrative examples are presented, where each design method is implemented by MATLAB programs. A fractional delay filter is a filter of digital type having as main function to delay the processed input sig...
متن کاملSequential Cancellation Scheme and its Performance of Multi-user Detection for W-CDMA
A sequential cancellation scheme and its improvement is given in this paper for multi-user detection. Multi-user detection is expected to enhance capacity of the Wideband CDMA scheme. This scheme is composed of (a) estimation and compensation of phase rotation using a pilot signal in multi-pass environment, and (b) iterative calculation of a target signal and its interference. This scheme has b...
متن کاملTunable Wideband Graphene based Filters in THz Band
In this paper, a procedure for analyzing and designing of tunable wideband band-pass and band-stop graphene based filters in the terahertz band is proposed. These planar wideband plasmonic filters are unique in their kind. With this procedure, it is possible to design filters with the desired functional characteristics in the form of the similar quarter-wavelength resonance stubs. The discontin...
متن کاملAdjustable Fractional Delay FIR Filters Design Using Multirate and Frequency Optimization Techniques
Abstract— One of the most efficient implementation for adjustable fractional delay FIR filter is the Farrow structure, allowing on line fractional delay value update with a fixed branch filters set. A wideband fractional delay FIR filter requires high number of branch filters and high branch filters length, which results in a complex arithmetic implementation. This paper describes a multirate...
متن کاملWideband full-duplex MIMO relays with blind adaptive self-interference cancellation
We develop adaptive self-interference cancellation algorithms for both filter-and-forward and decode-and-forward multiple-input multiple-output relays. The algorithms are blind in the sense that they only exploit the spectral properties of the transmitted signal to identify the self-interference channel, while dealing with frequency-selective channels and arbitrary signal spectra. Our approach ...
متن کامل