Abstract
With the deep physical-layer programmability enabled by software-defined networking (SDN), it is now feasible to realize optical data center transceivers that adapt their transmission parameters in response to timevarying traffic demand and signal quality conditions. In this paper, we develop a cross-layer performance tuning framework for wavelength-tunable data center transceivers, combining scalable and secure modulation order and code rate adaptation. We develop new physical-layer control modules and combine SDN control with distributed preamble encoding in order to achieve both rate adaptation and node synchronization in a wavelength-routing data center testbed. Our experimental and theoretical studies based on pulse amplitude modulation and low-density parity-check coding point to the significance of joint modulation order and code-rate adaptation in data centers. We report real-time resource adaptation with switching speeds on the order of hundreds of milliseconds.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1015-1026 |
| Number of pages | 12 |
| Journal | Journal of Optical Communications and Networking |
| Volume | 10 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 1 2018 |
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Keywords
- Adaptive modulation and coding
- Data center
- Preamble encoding
- Pulse amplitude modulation (PAM)
- Software-defined networking (SDN)
- Wavelength routing
ASJC Scopus subject areas
- Computer Networks and Communications
Cite this
Physical-layer adaptive resource allocation in software-defined data center networks. / Yang, Mingwei; Rastegarfar, Houman; Djordjevic, Ivan B.
In: Journal of Optical Communications and Networking, Vol. 10, No. 12, 01.12.2018, p. 1015-1026.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Physical-layer adaptive resource allocation in software-defined data center networks
AU - Yang, Mingwei
AU - Rastegarfar, Houman
AU - Djordjevic, Ivan B
PY - 2018/12/1
Y1 - 2018/12/1
N2 - With the deep physical-layer programmability enabled by software-defined networking (SDN), it is now feasible to realize optical data center transceivers that adapt their transmission parameters in response to timevarying traffic demand and signal quality conditions. In this paper, we develop a cross-layer performance tuning framework for wavelength-tunable data center transceivers, combining scalable and secure modulation order and code rate adaptation. We develop new physical-layer control modules and combine SDN control with distributed preamble encoding in order to achieve both rate adaptation and node synchronization in a wavelength-routing data center testbed. Our experimental and theoretical studies based on pulse amplitude modulation and low-density parity-check coding point to the significance of joint modulation order and code-rate adaptation in data centers. We report real-time resource adaptation with switching speeds on the order of hundreds of milliseconds.
AB - With the deep physical-layer programmability enabled by software-defined networking (SDN), it is now feasible to realize optical data center transceivers that adapt their transmission parameters in response to timevarying traffic demand and signal quality conditions. In this paper, we develop a cross-layer performance tuning framework for wavelength-tunable data center transceivers, combining scalable and secure modulation order and code rate adaptation. We develop new physical-layer control modules and combine SDN control with distributed preamble encoding in order to achieve both rate adaptation and node synchronization in a wavelength-routing data center testbed. Our experimental and theoretical studies based on pulse amplitude modulation and low-density parity-check coding point to the significance of joint modulation order and code-rate adaptation in data centers. We report real-time resource adaptation with switching speeds on the order of hundreds of milliseconds.
KW - Adaptive modulation and coding
KW - Data center
KW - Preamble encoding
KW - Pulse amplitude modulation (PAM)
KW - Software-defined networking (SDN)
KW - Wavelength routing
UR - http://www.scopus.com/inward/record.url?scp=85058559887&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058559887&partnerID=8YFLogxK
U2 - 10.1364/JOCN.10.001015
DO - 10.1364/JOCN.10.001015
M3 - Article
AN - SCOPUS:85058559887
VL - 10
SP - 1015
EP - 1026
JO - Journal of Optical Communications and Networking
JF - Journal of Optical Communications and Networking
SN - 1943-0620
IS - 12
ER -