Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks

Konstantinos Christodoulopoulos; Emmanouel Varvarigos

doi:10.1109/ONDM.2012.6210273

Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks

Konstantinos Christodoulopoulos, Emmanouel Varvarigos

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

13 Citations (Scopus)

Abstract

We consider the problem of serving dynamic traffic in a spectrum flexible optical network, where the spectrum allocated to an end-to-end connection varies dynamically with time so as to follow the required source transmission rate. In the proposed framework, each connection is assigned a route and is allocated a reference frequency over that route, using an appropriate Routing and Spectrum Allocation (RSA) algorithm, but the spectrum it utilizes around the reference frequency is allowed to expand and contract to match the source rate fluctuations. To perform this function, we propose two spectrum expansion/ contraction (SEC) policies and we develop models for calculating the network blocking probability for these policies. We then present an iterative RSA algorithm that takes into account the developed blocking models and identifies the routes and the reference frequency for the connections so as to minimize the average blocking of the network.

Original language	English
Title of host publication	2012 16th International Conference on Optical Networking Design and Modelling, ONDM 2012
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	1-6
Number of pages	6
ISBN (Print)	9781467314428
DOIs	https://doi.org/10.1109/ONDM.2012.6210273
Publication status	Published - 2012
Externally published	Yes
Event	International Conference on Optical Network Design and Modeling 2012 - University of Essex, Colchester, United Kingdom Duration: 17 Apr 2012 → 20 Apr 2012 Conference number: 16th https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=20162

Conference

Conference	International Conference on Optical Network Design and Modeling 2012
Abbreviated title	ONDM 2012
Country/Territory	United Kingdom
City	Colchester
Period	17/04/12 → 20/04/12
Internet address	https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=20162

Keywords

blocking probability
Optical OFDM
routing and spectrum allocation
spectrum expansion/contraction policies
spectrum sharing
Spectrum-flexible networks
time-varying traffic

Access to Document

10.1109/ONDM.2012.6210273

Cite this

@inproceedings{1849abbecfea46a492ff667ae21fb019,

title = "Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks",

abstract = "We consider the problem of serving dynamic traffic in a spectrum flexible optical network, where the spectrum allocated to an end-to-end connection varies dynamically with time so as to follow the required source transmission rate. In the proposed framework, each connection is assigned a route and is allocated a reference frequency over that route, using an appropriate Routing and Spectrum Allocation (RSA) algorithm, but the spectrum it utilizes around the reference frequency is allowed to expand and contract to match the source rate fluctuations. To perform this function, we propose two spectrum expansion/ contraction (SEC) policies and we develop models for calculating the network blocking probability for these policies. We then present an iterative RSA algorithm that takes into account the developed blocking models and identifies the routes and the reference frequency for the connections so as to minimize the average blocking of the network.",

keywords = "blocking probability, Optical OFDM, routing and spectrum allocation, spectrum expansion/contraction policies, spectrum sharing, Spectrum-flexible networks, time-varying traffic",

author = "Konstantinos Christodoulopoulos and Emmanouel Varvarigos",

year = "2012",

doi = "10.1109/ONDM.2012.6210273",

language = "English",

isbn = "9781467314428",

pages = "1--6",

booktitle = "2012 16th International Conference on Optical Networking Design and Modelling, ONDM 2012",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

address = "United States of America",

note = "International Conference on Optical Network Design and Modeling 2012, ONDM 2012 ; Conference date: 17-04-2012 Through 20-04-2012",

url = "https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=20162",

}

Christodoulopoulos, K & Varvarigos, E 2012, Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks. in 2012 16th International Conference on Optical Networking Design and Modelling, ONDM 2012., 6210273, IEEE, Institute of Electrical and Electronics Engineers, pp. 1-6, International Conference on Optical Network Design and Modeling 2012, Colchester, United Kingdom, 17/04/12. https://doi.org/10.1109/ONDM.2012.6210273

Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks. / Christodoulopoulos, Konstantinos; Varvarigos, Emmanouel.
2012 16th International Conference on Optical Networking Design and Modelling, ONDM 2012. IEEE, Institute of Electrical and Electronics Engineers, 2012. p. 1-6 6210273.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

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T1 - Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks

AU - Christodoulopoulos, Konstantinos

AU - Varvarigos, Emmanouel

N1 - Conference code: 16th

PY - 2012

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N2 - We consider the problem of serving dynamic traffic in a spectrum flexible optical network, where the spectrum allocated to an end-to-end connection varies dynamically with time so as to follow the required source transmission rate. In the proposed framework, each connection is assigned a route and is allocated a reference frequency over that route, using an appropriate Routing and Spectrum Allocation (RSA) algorithm, but the spectrum it utilizes around the reference frequency is allowed to expand and contract to match the source rate fluctuations. To perform this function, we propose two spectrum expansion/ contraction (SEC) policies and we develop models for calculating the network blocking probability for these policies. We then present an iterative RSA algorithm that takes into account the developed blocking models and identifies the routes and the reference frequency for the connections so as to minimize the average blocking of the network.

AB - We consider the problem of serving dynamic traffic in a spectrum flexible optical network, where the spectrum allocated to an end-to-end connection varies dynamically with time so as to follow the required source transmission rate. In the proposed framework, each connection is assigned a route and is allocated a reference frequency over that route, using an appropriate Routing and Spectrum Allocation (RSA) algorithm, but the spectrum it utilizes around the reference frequency is allowed to expand and contract to match the source rate fluctuations. To perform this function, we propose two spectrum expansion/ contraction (SEC) policies and we develop models for calculating the network blocking probability for these policies. We then present an iterative RSA algorithm that takes into account the developed blocking models and identifies the routes and the reference frequency for the connections so as to minimize the average blocking of the network.

KW - blocking probability

KW - Optical OFDM

KW - routing and spectrum allocation

KW - spectrum expansion/contraction policies

KW - spectrum sharing

KW - Spectrum-flexible networks

KW - time-varying traffic

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SN - 9781467314428

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BT - 2012 16th International Conference on Optical Networking Design and Modelling, ONDM 2012

PB - IEEE, Institute of Electrical and Electronics Engineers

T2 - International Conference on Optical Network Design and Modeling 2012

Y2 - 17 April 2012 through 20 April 2012

ER -

Routing and Spectrum Allocation policies for time-varying traffic in flexible optical networks

Abstract

Conference

Keywords

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Other files and links

Time-varying spectrum allocation policies and blocking analysis in flexible optical networks

Cite this