Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Distributed MAC Protocol Design for Full-Duplex Cognitive Radio Networks   In this paper, we consider the Medium Access Control (MAC) protocol design
for full-duplex cognitive radio networks (FDCRNs). Our design exploits the fact
that full-duplex (FD) secondary users (SUs) can perform spectrum sensing and
access simultaneously, which enable them to detect the primary users' (PUs)
activity during transmission. The developed FD MAC protocol employs the
standard backoff mechanism as in the 802.11 MAC protocol. However, we propose
to adopt the frame fragmentation during the data transmission phase for timely
detection of active PUs where each data packet is divided into multiple
fragments and the active SU makes sensing detection at the end of each data
fragment. Then, we develop a mathematical model to analyze the throughput
performance of the proposed FD MAC protocol. Furthermore, we propose an
algorithm to configure the MAC protocol so that efficient self-interference
management and sensing overhead control can be achieved. Finally, numerical
results are presented to evaluate the performance of our design and demonstrate
the throughput enhancement compared to the existing half-duplex (HD) cognitive
MAC protocol.

13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph