Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sequence-Based OOK for Orthogonal Multiplexing of Wake-up Radio Signals
  and OFDM Waveforms   In this study, we propose an approach to constructing on-off keying (OOK)
symbols for wake-up radios (WURs) by using sequences in the frequency domain.
The proposed method enables orthogonal multiplexing of wake-up signals (WUSs)
and orthogonal frequency division multiplexing (OFDM) waveforms. We optimize
the sequences with a tractable algorithm by considering the reliability of WUSs
in fading channels. The proposed algorithm relies on an alternating
minimization technique, i.e. cyclic algorithm-new (CAN), which was originally
proposed for obtaining a unimodular sequence with good aperiodic correlation
properties. In this study, we extend CAN to generate OOK waveforms with
Manchester coding. We demonstrate the performance of four optimized sequences
and compare with state-of-the-art approaches. We show that the proposed scheme
improves the wake-up radio receiver (WURx) performance by controlling the
energy distribution in frequency domain while removing the interference-floor
at the OFDM receiver.

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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: econ