By Topic

On Sidelobe Suppression for Multicarrier-Based Transmission in Dynamic Spectrum Access Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Zhou Yuan ; Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., Worcester, MA, USA ; Wyglinski, Alexander M.

In this paper, we investigate the net sidelobe power reduction of noncontiguous orthogonal frequency-division-multiplexing (NC-OFDM) signals using an approach combining cancellation carriers (CCs) and modulated filter banks (MFBs). NC-OFDM can enable high-speed dynamic spectrum access (DSA) networks via transmission over several disjoint separate frequency bands. However, OFDM generally produces a substantial amount of out-of-band (OOB) interference that can potentially disrupt communications in adjacent wireless channels. One solution is to apply a filter bank, which is an array of bandpass filters that serves to isolate different frequency components of a signal. In this paper, we propose a combined OFDM sidelobe-suppression approach consisting of MFBs and the existing CC technique to achieve OOB radiation reduction. The simulation results show a significant net reduction of sidelobe power after using these two techniques. Furthermore, an algorithm has been developed to determine the number of OFDM data carriers (DCs) that can be transmitted in a given spectrum space.

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:59 ,  Issue: 4 )