Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Waveform Design Using Half-duplex Devices for 6G Joint Communications
  and Sensing   Joint communications and sensing is a promising 6G technology, and the
challenge is how to integrate them efficiently. Existing frequency-division and
time-division coexistence can hardly bring a gain of integration. Directly
using orthogonal frequency-division multiplexing (OFDM) to sense requires
complex in-band full-duplex to cancel the selfinterference (SI). To solve these
problems, this paper proposes novel coexistence schemes to gain super sensing
range (SSR) and simple SI cancellation. SSR enables JCS to gain a sensing range
of a sensing-only scheme and shares the resources with communications. Random
time-division is proposed to gain a super Doppler range. Flexible sensing
implanted OFDM (FSIOFDM) is also proposed. FSI-OFDM uses random sensing
occasions to gain super Doppler range, as well as utilizes the fixed tail
sensing occasions to achieve supper distance range. The simulation results show
that the proposed schemes can gain SSR with limited resources.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph