Downloads: 130

M.Tech / M.E / PhD Thesis | Electronics & Communication Engineering | India | Volume 6 Issue 5, May 2017

Non-Linear Distortion Noise Removal by Introducing a Static Pre-distortion at the Transmitter

Chinnu Viswan | Jisha Anu Jose ^[2]

Abstract: Nowadays in the field of electronics there is a considerable shift towards more bandwidth demanding applications. Due to this ongoing shift, more bandwidth consuming applications and services has to be introduced for the next generation which offers higher data rates with reduced cost and traffic. On increasing the bandwidth, signal distortion results which is the alteration of waveform of an information bearing signal. Distortion takes the form of both linear and non-linear type. Since non-linear distortion reduces power and spectral efficiency of transmitted signal which leads to Inter-modulation Interference (IMI), it needs to be mitigated for effective communication. Efficient removal of non-linear distortion noise can be attained by the introduction of a pre-distorter at the transmitter side and performing iterations at the receiver side. This paper presents an effective method for the removal of non-linear distortion, both at the transmitter and receiver section with a pre-distorter at the transmitter side and performing iterations at the receiver side. This is then tested for three commonly used digital transmission schemes TDMA (Time Division Multiple Access), OFDMA (Orthogonal Frequency Division Multiple Access) and SC-FDMA (Single Carrier Frequency Division Multiple Access) which are the commonly used waveforms in terrestrial and satellite communication.

Keywords: Non-linear distortion, IMI, Pre-distortion, TDMA, OFDMA, SC-FDMA

Edition: Volume 6 Issue 5, May 2017,

Pages: 717 - 720

Similar Articles with Keyword 'IMI'