Paper Info
Title
Additive Cancellation Signal Method for Sidelobe Suppression in NC-OFDM Based Cognitive Radio Systems.
Abstract
In this paper, we propose a novel additive cancellation signal (ACS) method for sidelobe suppression in non-contiguous orthogonal frequency division multiplexing (NC-OFDM) based CR systems. The key idea of the proposed method is to dynamically add several additive cancellation symbols on both the primary user (PU) subcarriers and the secondary user (SU) subcarriers, to generate the additive cancellation signals for suppressing the sidelobe power of NC-OFDM signals. Moreover, the ACS method formulates the problem of sidelobe suppression as a quadratically constrained quadratic program (QCQP), and the optimal additive cancellation signal can be obtained by the standard interior-point method. Simulation results show that the proposed ACS method can provide significant sidelobe suppression performance.
Year
DOI
Venue
2015
10.1109/GLOCOM.2015.7417550
IEEE Global Communications Conference
Keywords
Field
DocType
Non-contiguous orthogonal frequency division multiplexing (NC-OFDM),cognitive radio,sidelobe suppression
Quadratically constrained quadratic program,Computer science,Control theory,Real-time computing,Electronic engineering,Interference (wave propagation),Orthogonal frequency-division multiplexing,Bit error rate,Cognitive radio
Conference
ISSN
Citations 
PageRank 
2334-0983
0
0.34
References 
Authors
10
5
Name
Order
Citations
PageRank
Chunxing Ni1917.06
Mingjie Feng2725.83
Kai Luo3277.01
Tao Jiang42543230.12
Shiwen Mao52816192.93