Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-Way Molecular Communications   For nano-scale communications, there must be cooperation and simultaneous
communication between nano devices. To this end, in this paper we investigate
two-way (a.k.a. bi-directional) molecular communications between nano devices.
If different types of molecules are used for the communication links, the
two-way system eliminates the need to consider self-interference. However, in
many systems, it is not feasible to use a different type of molecule for each
communication link. Thus, we propose a two-way molecular communication system
that uses a single type of molecule. We develop a channel model for this system
and use it to analyze the proposed system's bit error rate, throughput, and
self-interference. Moreover, we propose analog- and digital- self-interference
cancellation techniques. The enhancement of link-level performance using these
techniques is confirmed with both numerical and analytical results.

14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th