Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel online scheduling protocol for energy-efficient TWDM-OLT design   Design of energy-efficient access networks has emerged as an important area
of research, since access networks consume $80-90\%$ of the overall Internet
power consumption. TWDM-PON is envisaged to be one of the widely accepted
future access technologies. TWDM-PON offers an additional opportunity to save
energy at the OLT along with the existing energy-efficient ONU design. In this
paper, we focus on the energy-efficient OLT design in a TWDM-PON. While most of
the conventional methods employ a minimization of the number of wavelengths, we
propose a novel approach which aims at minimizing the number of voids created
due to scheduling. In the process, for the first time, we present a
low-complexity on-line scheduling algorithm for the upstream traffic
considering delay constraints. Our extensive simulations demonstrate a
significant improvement in energy efficiency of $\sim 25\%$ for high load at
the OLT receivers. Furthermore, we provide an analytical upper-bound on the
energy-efficiency of the OLT receivers and demonstrate that the proposed
protocol achieves an energy efficiency very close to the bound with a maximum
deviation $\sim 2\%$ for $64$ ONUs.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con