Sidelobe Suppression using AIC technique in OFDM-based Cognitive Radios
| Author(s) | : | Mohammad Abas Malik |
| Institution | : | Department of Electronics and Communication Engineering, SoET BGSB University Rajouri (JK) |
| Published In | : | Vol. 5, Issue 13 — January 2018 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Orthogonal frequency division multiplexing (OFDM) is an efficient and effective trans-mission technique forCognitive radio (CR) systems but it suffers from out-of-band (OOB) radiations due to high spectral sidelobes. This is oneof the major drawback of OFDM scheme especially in cognitive radios where it is important to prevent secondary user’sinterference into the primary licensed user’s (LUs) frequency band. In this paper, we investigate the already existingtechnique called Active Interference Cancellation (AIC]) to overcome the sidelobe problem in OFDM on differentparameters. In this technique, a few tones at both edges of the spectrum hole and in the PU band are used to cancel theinterference to LUs. Two special tones are called Active interference edge tones. The motto of all this is to cancelinterference in that band. Unlike other methods, this technique does not affect receiver and need small alterations in thereceiver and also there is no need of side information to be sent to the receiver
Mohammad Abas Malik, “Sidelobe Suppression using AIC technique in OFDM-based Cognitive Radios”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 13, pp. -, January 2018.
