Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: N-continuous OFDM: System Optimization and Performance Analysis   N-continuous orthogonal frequency division multiplexing (NC-OFDM) is a
promising technique to achieve significant sidelobe suppression of baseband
OFDM signals. However, the high complexity limits its application. Based on
conventional NC-OFDM, in this paper, a new technique, called time-domain
N-continuous OFDM (TD-NC-OFDM), is proposed to transfer the original
frequency-domain processing to the time domain, by the linear combination of a
novel basis set to smooth the consecutive OFDM symbols and their high-order
derivatives. We prove that TD-NC-OFDM is an equivalent to conventional one
while consuming much lower complexity. Furthermore, via the time-domain
structure, a closed-form spectral expression of NC-OFDM signals is derived and
a compact upper bound of sidelobe decaying is derived. This paper also
investigates the impact of the TD-NC-OFDM technique on received
signal-to-interference-plus-noise ratio (SINR) and provides a closed-form
analytical expression. Theoretical analyses and simulation results show that
TD-NC-OFDM can prohibitively suppress the sidelobe with much lower complexity.

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The categories of this paper are: eess
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio