Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Secure Ad-hoc Routing Scheme   This paper investigates on the problem of combining routing scheme and
physical layer security in multihop wireless networks with cooperative
diversity. We propose an ad-hoc natured hop-by-hop best secure relay selection
in a multihop network with several relays and an eavesdropper at each hop which
provides a safe routing scheme to transmit confidential message from
transmitter to legitimate receiver. The selection is based on the instantaneous
channel conditions of relay and eavesdropper at each hop. A theoretical
analysis is performed to derive new closed form expressions for probability of
non-zero secrecy capacity along with the exact end to end secrecy outage
probability at a normalized secrecy rate. Furthermore, we provide the
asymptotic expression to gain insights on the diversity gain.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio