Performance on ICI Self-Cancellation in FFT-OFDM and DCT-OFDM System
نویسندگان
چکیده
منابع مشابه
ICI Self – Cancellation for FFT-OFDM System
Orthogonal frequency division multiplexing (OFDM) is the projected modulation of choice for fourth-generation broadband multimedia wireless systems. OFDM based wireless systems are spectrally efficient but they are vulnerable to Inter carrier interference (ICI). The rapid variation of the channel can induce ICI. ICI will significantly increase the difficulty of OFDM channel estimation. ICI due ...
متن کاملStudy of ICI Cancellation techniques in OFDM
Abstract: OFDM (Orthogonal frequency division multiplexing) is a well known technique in 4G Broadband wireless communication systems. OFDM has high spectral efficiency but it suffers from frequency offset problem due to the difference between transmitter and receiver local oscillator frequencies which causes loss of orthogonality between subcarriers leading to ICI. This degrades the performance...
متن کاملICI Cancellation in MIMO-OFDM Systems
The CFO destroys the orthogonality among subcarriers and hence causes ICI in MIMO-OFDM systems. The ICI self-cancellation schemes, available in literature for SISO-OFDM systems, reduce the effect of ICI at the cost of spectral efficiency or system throughput. In this paper a new scheme is presented to reduce the effect of ICI with system throughput higher than that of ICI self-cancellation sche...
متن کاملPilot-Aided ICI Self-Cancellation Scheme for OFDM Systems
In this paper, a novel pilot-aided inter-carrier interference (ICI) self-cancellation scheme is proposed for use in orthogonal frequency division multiplexing (OFDM) systems. The proposed scheme maps both modulated data symbols and pre-defined pilot symbols onto nonneighboring sub-carriers with weighting coefficients of +1 and -1. With the aid of pilot symbols, a more accurate estimation of fre...
متن کاملPerformance Analysis of OFDM System Employing an Efficient Scheme of ICI Self - Cancellation Ravi Prakash Yadav
344 Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. Abstract— Orthogonal frequency division multiplexing (OFDM) is very sensitive to frequency offset caused by Doppler frequency drift or frequency drift between transmitter and receiver oscillator. This leads to a loss in the orthogonality between sub-carriers and results in inter-carrier-interference (ICI). In ...
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ژورنال
عنوان ژورنال: Journal of Function Spaces
سال: 2015
ISSN: 2314-8896,2314-8888
DOI: 10.1155/2015/854753