Publications
(Optical Networking)
Recent advances in optical switches have led
to WDM technology with networking capabilities. We are investigating how the
WDM technology can be applied to the internet. Our research topics and papers are
listed below.
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Our papers are
also available at Achivements
of Advanced Network Architecture Laboratory
-> Quick access to the
publications. (1999;
2000;
2001;
2002;)
Ph.D Thesis
Masterfs
Thesis
Shin'ich Arakawa, "Logical topology design and multi-layered
survivability for IP over WDM networks," Master's Thesis, Graduate School
of Engineering, Osaka-University, February 2000.
Issues for IP over WDM (Logical
topology design, Reliability)
E Shin'ichi Arakawa and
Masayuki Murata, "Reliability issues in IP over photonic networks,"
chapter 2, Quality and Reliability of Large Scale Telecom Systems - Case
Studies: Olympic Games, John Wiley & Son, December 2002.
EFunctional partitioning for
multi-layer survivability
E
Shin'ichi Arakawa, Masayuki Murata, Hideo Miyahara, "Design
methods of multi-layer survivability in IP over WDM networks," in Proceedings
of OptiComm 2000, pp. 279-290, October 2000.
E
Shin'ichi Arakawa, Masayuki Murata, Hideo
Miyahara, "Functional
partitioning for multi-layer survivability in IP over WDM networks," IEICE
Transactions on Communications, pp. 2224-2233, October 2000.
EIncremental capacity
dimensioning and Logical topology adaptations
E Shin'ichi Arakawa and
Masayuki Murata, "On incremental capacity dimensioning in reliable IP over
WDM networks," in Proceedings of OPTICOMM, pp. 153-163, August
2001.
E Shin'ichi Arakawa and
Masayuki Murata, "Lightpath
management of logical topology with incremental traffic changes for reliable IP
over WDM networks," Optical Network Magazine, vol. 3, pp. 68-76, May
2002.
E Shinya Ishida, Shin'ichi
Arakawa and Masayuki Murata, "Proposal of procedures to reconfigure
logical topologies in reliable WDM-based mesh networks," in Proceedings of
SPIE APOC2002 Optical Networking II, (Shanghai), vol. 4910, pp. 115-125,
October 2002.
E Shinya Ishida, Shin'ichi
Arakawa and Masayuki Murata, "Dynamic reconfiguration of logical
topologies in WDM-based mesh networks," in Proceedings of The 7th IFIP
Working Conference on Optical Network Design and Modeling (ONDM 2003),
(Budapest), pp. 93-112, February 2003.
E Shinya Ishida, Shin'ichi
Arakawa and Masayuki Murata, gReconfiguration of logical topologies with
minimum traffic disruptions in reliable WDM-based mesh networks,h Photonic
Network Communications, Vol. 6, No. 3, pp. 265-277, Nov. 2003.
ELogical topology design
algorithms
E
Junichi Katou, Shin'ichi Arakawa, and Masayuki
Murata, "A design method of logical topology for IP over WDM networks with
stable routing," in Proceedings of The Fifth Working Conference on
Optical Network Design and Modeling (ONDM2001), February 2001.
E Junichi Katou, Shin'ichi
Arakawa and Masayuki Murata, "A design method for logical
topologies with stable packet routing in IP over WDM networks," IEICE
Transactions on Communications, Vol. E86-B, No. 8, pp. 2350-2357, Aug. 2003.
EQuality of Protection, Quality
of Reliability
E Junichi Katou, Shinfichi
Arakawa and Masayuki Murata, "Design method of logical topologies with
quality of reliability in WDM networks," in Proceedings of Workshop on
Optical Networking Technologies, Architectures and Management, November 2001.
E Shin'ichi Arakawa,
Junichi Katou and Masayuki Murata, "Design
method of logical topologies with quality of reliability in WDM networks,"
Photonic Network Communications, vol. 5, no. 2, pp. 107-121, March 2003.
Issues for dynamic lightpath
establishment in WDM networks
For effectively utilizing WDM, we
consider the fast wavelength assignment method on demand basis in this paper.
That is, when the data transfer request arises, the wavelength is dynamically
assigned between source and destination nodes, and the data is transfered using
the assigned wavelength. The wavelength is immediately released when the data
transfer is successfully finished. In such a method, the influence of
wavelength assignment time, including the propagation delay between the source
and destination, becomes a key issue to achieve a high throughput such that the
large bandwidth provided by the WDM technology can be enjoyed.
EPerformance analysis
(analyses) for two-way path reservation
We consider two methods for wavelength reservation; a
forward method in which wavelength assignment is performed along the forward
path from source to receiver, and a backward method in which it is performed
along the backward path. Based on our approximate analysis, we investigate the
effects of propagation delays on both methods. To evaluate the above three protocols,
we newly develop the approximate analysis method. Our approach is based on the
Reduced Load Approximation (RLA) method which is often used in analyzing the
circuit switched network. To apply the RLA method, however, we need to take
account of the wavelength continuity condition in the photonic network. That
is, we assume that the photonic network consists of wavelength inconvertible
nodes only, and the same wavelength should be reserved between source and
destination. Thus, we cannot directly apply the conventional RLA method.
Further, effects of the wavelength reservation time should be considered since
it much affects the performance of our network. We therefore extend the RLA
method to derive the blocking probability, which is the probability that the
reservation request of the source node is rejected by the network due to the
lack of the available wavelength. By utilizing the blocking probability, we can
easily obtain the burst data transfer delay, which is defined as the time from
when the data transfer request arrives at the source node to when the data is
successfully received by the destination node.
E
Shin'ichi Arakawa, Kentaro
Miyamoto, Masayuki Murata and Hideo Miyahara, "Performance
analyses of wavelength reservation methods for high-speed data transfer in
photonic networks," in Proceedings of ITC-CSCC, (Sado),
pp.828-831, July 1999.
E
Shin'ichi Arakawa, Kentaro
Miyamoto, Masayuki Murata and Hideo Miyahara, "Delay analyses of
wavelength reservation methods for high-speed burst transfer in photonic
networks," in Proceeding of APCC/OECC, (Beijing), pp.445-449,
October 1999.
EParallel reservation for
resolving unfairness
In the OBS scheme, the wavelength is exclusively
reserved along the source and destination nodes, when the burst data is
generated at the source. Then, efficient data transfer is expected. However,
its performance is heavily dependent on the number of links that lightpath goes
through. In this paper, we propose a new protocol for OBS networks, where the
lightpath for the burst transmission is set up by parallel wavelength
reservations.
1. Ikutaro Ogushi,
EUltrafast path setup using
optical code processing
OBS
(Optical Burst Switching), in which wavelengths are reserved on demand basis is
one way to effectively use WDM networks. To reduce overhead time, high-speed
processing of the signaling message at each hop is imperative. However,
conventional electronic processing is not fast enough and will eventually
become a bottleneck as the bit rate of data links increase. To reduce the
overhead time in OBS networks, we propose an OC-TAG (Optical Code based
Tell-And-Go) protocol for transmitting variable length burst without buffering,
and fast burst transfers over WDM networks. Optical-code-based processing is
introduced for
handling the out-of-band control packets. Enabling architecture and evaluation
results are presented.
2. Ken-ichi Kitayama,
Shin'ichi Arakawa and Masayuki Murata, "Ultrafast optical-code based path
setup for optical burst switching," in Proceedings of IEEE LEOS Summer
Topicals, July 2002.
3. Ken-ichi Kitayama,
4.
5. Yosuke Kanitani, Shinfichi
Arakawa, Masayuki Murata, Ken-ichi Kitayama, gHigh speed data transfer using
optical code processing in WDM networksh, in Proceedings of International
Conference on Optical Communications and Networks (ICOCN), Oct. 2003.
Issues for physical topology design
EMinimize number of Wavebands
6.
EFlexible infrastructure for
transporting traffic
7.
8. Yukinobu Fukushima,
Hiroaki Harai, Shin'ichi Arakawa, Masayuki Murata and Hideo Miyahara, "Planning
Method of Robust WDM Networks against Traffic Changes," to be presented at
The 8th IFIP Working Conference on Optical Network Design and Modeling (ONDM
2004), February 2004.
Others
Submitted
Papers (under construction)
CV (under
construction. This will include domestic papers.)
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I have received the M.E.
and D.E. degrees in Informatics and Mathematical Science from