Review On Ici Reduction Techniques In Ofdm System

نویسنده

  • Praveen Yadav
چکیده

Orthogonal frequency division multiplexing (OFDM) is a promising technique for the broadband wireless communication system. However, the inter-carrier-interference (ICI) produced by the phase noise of transceiver local oscillator is a serious problem. The variations in Time Offset (TO) can lead to inter-symbolinterference (ISI) in case of frequency selective channel. Literature survey of any research filed or subject is must required, before contributing in the research of that field. The literature review gives a detailed study of existing published material for clear understanding of that area. Therefore, this Paper presents a detailed literature survey of the area taken (i.e., OFDM). The study in this paper highlights different problems or issues of OFDM system like high PAPR, synchronization, and Inter-Carrier-Interference (ICI). This review also summarizes the methods available in the literature to overcome these problems.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Low Power and Low Latency Inter Carrier Interference Cancellation Architecture in Multi User OFDM System

The Inter carrier interference (ICI) and inter block interference (IBI) are the two signal degradations on multi user orthogonal frequency division multiplexing (OFDM) communication system. In this paper, a noval methodology is proposed for the detection and reduction of ICI in received OFDM symbols. The vector precoding technique is proposed to reduce the ICI and more bandwidth efficient than ...

متن کامل

Using WPT as a New Method Instead of FFT for ‌Improving the Performance of OFDM Modulation

Orthogonal frequency division multiplexing (OFDM) is used in order to provide immunity against very hostile multipath channels in many modern communication systems.. The OFDM technique divides the total available frequency bandwidth into several narrow bands. In conventional OFDM, FFT algorithm is used to provide orthogonal subcarriers. Intersymbol interference (ISI) and intercarrier interferen...

متن کامل

Performance of ICI Cancellation in OFDM System Using Different Reduction Techniques

Orthogonal frequency division multiplexing (OFDM) is used in many wireless broadband communication systems because it is a simple and scalable solution to inter symbol interference caused by a multipath channel. OFDM is emerging as preferred modulation scheme in modern high data rate wireless communication systems. A well known problem of OFDM system is sensitivity to frequency offset between t...

متن کامل

Study of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Orthogonal frequency division multiplexing has drawn explosive attention as a new type of high data rate transmission scheme for wireless communication system. The main advantage of OFDM system are spectral bandwidth efficiency and robustness against frequency selective fading or narrowband interference etc. However a critical drawback of OFDM is high peak-to-average-power ratio (PAPR), which r...

متن کامل

Design and Implementation of OFDM System and Reduction of Inter-Carrier Interference at Different Variance

Orthogonal frequency division multiplexing (OFDM) is one of the multi-carrier modulation (MCM) techniques that transmit signals through multiple carriers. These carriers (subcarriers) have different frequencies and they are orthogonal to each other. Orthogonal frequency division multiplexing techniques have been applied in both wired and wireless communications, such as the asymmetric digital s...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014