Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Digital Network Coding Aided Two-way Relaying: Energy Minimization and
  Queue Analysis   In this paper, we consider a three node, two-way relay system with digital
network coding over static channels where all link gains are assumed to be
constant during transmission. The aim is to minimize total energy consumption
while ensuring queue stability at all nodes, for a given pair of random packet
arrival rates. Specifically, we allow for a set of transmission modes and solve
for the optimal fraction of resources allocated to each mode, including
multiaccess uplink transmission mode and network coding broadcasting mode. In
addition, for the downlink, we find the condition to determine whether
superposition coding with excess data over the better link and network coded
data for both users is energy efficient and the corresponding optimization is
formulated and solved. To tackle the queue evolution in this network, we
present a detailed analysis of the queues at each node using a random
scheduling method that closely approximates the theoretical design, through a
two-dimensional Markov chain model.

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys