{"title":"An autonomous decentralized control for indirectly controlling system performance variable in large-scale and wide-area network","authors":"Yusuke Sakumoto, M. Aida, H. Shimonishi","doi":"10.1587/TRANSCOM.E98.B.2248","DOIUrl":"https://doi.org/10.1587/TRANSCOM.E98.B.2248","url":null,"abstract":"In this paper, we propose a novel autonomous decentralized control (ADC) for indirectly controlling a system performance variable, while not measuring the variable. In a large-scale and wide-area network, each node cannot gather information from the whole network, and has to control all over the network by collaborating with other nodes according to information in its local area. Some important problems (e.g., resource allocation) in a network are often formulated by a system performance variable as a function of system information including all node states. To tackle such a problem by an ADC, we design a node action to indirectly control the probability distribution of a system performance variable by only using local information on the basis of Markov Chain Monte Carlo. We then investigate the effectiveness of the node action through the analysis based on statistical mechanics. Moreover, we apply our ADC to design a traffic-aware virtual machine placement control with load balancing in a data center network. Simulations confirm that our control yields the performance desired.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115949354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamic bandwidth and wavelength allocation with coexistence of transmission technologies in TWDM PONs","authors":"A. Buttaboni, M. De Andrade, M. Tornatore","doi":"10.1109/NETWKS.2014.6958533","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6958533","url":null,"abstract":"In a Passive Optical Network (PON), the possibility of smooth upgrading the network infrastructure is an important requirement for network providers as it allows to minimize initial investments for networks deployment. During the upgrade process, it is expected a coexistence of new and old end-users, i.e., Optical Network Units (ONU), with diverse transceiver technologies. Our work focuses on the scenario where the network is upgraded from a TDM PON to a hybrid WDM/TDM PON (both short-reach and long-reach), and where the transceivers used in the old TDM PON can coexist with the new transceivers adopted in the hybrid WDM/TDM PON. In this work, we propose new Dynamic Bandwidth and Wavelength Allocation (DBWA) algorithms that solve the problem of managing the traffic originated by end-user transceivers with different characteristics. Specifically, in this paper we focus on the case of transceivers characterized by different tuning time. To investigate the importance of a DBWA which can specifically manage the traffic originated by transceivers with different tuning time, we also compare them to DBWAs which are not aware that different transmission technologies with different requirements coexist in the network. Finally, we test these DBWAs in different network scenarios (e.g., short-reach (PON) and long-reach (LR-PON) scenarios), and discuss what are the network parameters that mostly affect the algorithms performance.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125400220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A peer-to-peer system for large scale traffic measurements","authors":"Hélder Veiga, R. Valadas, P. Salvador","doi":"10.1109/NETWKS.2014.6959269","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959269","url":null,"abstract":"The characteristics of Internet traffic are becoming more and more complex due to the large and growing diversity of applications, the drastic differences in user behaviors and the mobility of users and devices, the complexity of traffic generation and control mechanisms, and the increasing diversity of link types and qualities. In such an environment, it is inevitable that network management tasks will rely heavily on (real-time) traffic measurements. Due to the large amounts of data that need to be processed and stored, measurement platforms have to become more distributed, allowing for scattered storage, replication and efficient retrieval of measurement data. This paper describes the specification, development and evaluation of distributed traffic measurement system with a peer-to-peer architecture, based on dynamic hierarchical overlay, highly adaptive to resource constraints, and providing replication of measurement data.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129291843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimizing ROADM configuration in WDM networks","authors":"B. Jaumard, D. T. Kien","doi":"10.1109/NETWKS.2014.6959206","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959206","url":null,"abstract":"Wavelength Switched Optical Networks (WSONs) have been designed to take advantage of all optical switching fabrics with a high level of automation and efficiency. Therein, the Wavelength Selective Switches (WSS) represent the core switching elements with a technology enabling multi-degree Reconfigurable Optical Add/Drop Multiplexers (ROADM) architectures with colorless, directionless and contentionless (CDC) switching. With the use of CDC ROADMs, WSON nodes are asymmetrical with respect to their switching capabilities. Firstly, the selection of the restricted switching capabilities plays a critical role in order to maximize, e.g., the grade of service subject to a given number of ports. Secondly, the asymmetry depends on the port size of WSS. In this paper, we propose an optimization model in order to establish the best ROADM switching connectivity to maximize the grade of service, for a given number of ports. We show that the grade of service can vary significantly, up to 30%, depending on the switching connectivity.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129651890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new flexible ONU design for UDWDM-PON with coherent transceivers and smart activation process","authors":"J. Segarra, V. Sales, J. Prat, R. Pous","doi":"10.1109/NETWKS.2014.6959241","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959241","url":null,"abstract":"We present a novel ONU architecture for coherent UDWDM-PON with randomly distributed ONU wavelengths. The ONU is built with one or two lasers exhibiting simple limited thermal tunability in a specific optical band, where the wavelengths are managed in a Statistical UDWDM approach. If only one laser is present at the ONU, it serves as both local oscillator for coherent receiver and transmitter in a Half-Duplex transmission mode. When two lasers are equipped, they can work in Full-Duplex transmission mode as receiver or transmitter indistinctly and back-up protection is provided in case of laser fail. Finally, a simple activation process based on Half-Duplex transmission for both lasers and a wavelength monitoring during operation is also proposed.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130104264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francisco Rodrigues, A. Tavares, A. Lopes, Simao Brandao, R. Ferreira, A. Shahpari, M. Lima, A. Teixeira
{"title":"Photonic integrated transceiver for hybrid PONs","authors":"Francisco Rodrigues, A. Tavares, A. Lopes, Simao Brandao, R. Ferreira, A. Shahpari, M. Lima, A. Teixeira","doi":"10.1109/NETWKS.2014.6959199","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959199","url":null,"abstract":"This paper presents a photonic integrated tunable transceiver for Wavelength Division Multiplexing (WDM) Passive Optical Networks (PONs) that supports higher order modulation format such as Quadrature Phase Shift Keying (QPSK). The architecture of the transceiver will be presented and divided into blocks. Then, the design of each block will be discussed. At the end one can find laboratory results that validate the concept of the used architecture.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130877914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing IP vs optical restoration using the open-source Net2Plan tool","authors":"Jose-Luis Izquierdo Zaragoza, P. Pavón-Mariño","doi":"10.1109/NETWKS.2014.6959255","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959255","url":null,"abstract":"Economic sustainability of the ever-increasing traffic requirements is built on the cost reduction of IP-over-WDM backbone networks. These networks are composed of a set of IP routers connected via all-optical circuits (or lightpaths), bypassing intermediate nodes, thanks to reconfigurable optical equipment. Today, traffic survivability is ensured by over-dimensioning the IP layer and using some IP/MPLS fast convergence/reroute mechanism, without making use of the reconfigurability of the optical layer. In this paper, we provide algorithms to dimension an IP-over-WDM network under two different resilience schemes: IP restoration and optical-followed-by-IP restoration. In both cases, the IP routing is controlled by an OSPF-like algorithm. In the optical-followed-by-IP restoration, OSPF reactions to failures are delayed by appropriately setting the OSPF hold-off timer, giving time to lightpath restoration attempts to be completed. We evaluate the performance, in terms of bandwidth requirements and traffic survivability, of these two resilience schemes. Our tests show that optical-followed-by-IP restoration is a cost-efficient alternative to IP restoration, still improving traffic survivability in most cases, without any degree of over-dimensioning. Results were obtained using the open-source Net2Plan tool, and source code is available on the website.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115223687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Torfs, X. Yin, A. Vyncke, M. Verbeke, J. Bauwelinck
{"title":"Solutions for a single carrier 40 Gbit/s downstream long-reach passive optical network","authors":"G. Torfs, X. Yin, A. Vyncke, M. Verbeke, J. Bauwelinck","doi":"10.1109/NETWKS.2014.6959259","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959259","url":null,"abstract":"This paper presents a single carrier 40 Gbit/s downstream long-reach passive optical network (LR-PON) topology as candidate for upgrading current fiber infrastructure towards higher data rates. A 100 km LR-PON network was investigated and 2 solutions to overcome chromatic dispersion were proposed. Firstly, a dispersion compensated element is added to compensate the mean length of the feeder fiber. Secondly, an advanced modulation scheme, i.e. 3-level electrical duo-binary is introduced. This scheme has the advantage of allowing lower bandwidth APDs and requires only limited additional electronics. Furthermore, to overcome the inherent discrepancy between aggregated line rate and user rate, and hence the reduced power effciency, the BiPON protocol is added to minimize signal processing at the high line rates.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124151356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Access network optimization","authors":"M. T. Kalsch, K. Tschirpke","doi":"10.1109/NETWKS.2014.6959220","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959220","url":null,"abstract":"In this work we present a mathematical optimization model for planning the deployment of fast internet technology in a local exchange area. The locations of the new multi-service access nodes (MSANs) and the connections between these nodes and the main distribution frame (hub) are planned simultaneously. Additionally, the connection of several classical nodes to the new MSAN locations via dedicated copper cables is explicitly allowed in the model. The optimization model minimizes the total of node costs and connection costs. The obtained network can be used to develop two heuristics for the project roll-out. Given a limited capital as many customers as possible should be connected to the new nodes. Another possibility is to minimize the total costs such that a minimum customer coverage is satisfied.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"342 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124227788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The rearrangeable nonblocking conditions in the multi-MBA(N, e, 2) switching network","authors":"Remigiusz Rajewski","doi":"10.1109/NETWKS.2014.6959243","DOIUrl":"https://doi.org/10.1109/NETWKS.2014.6959243","url":null,"abstract":"In this paper the rearrangeable nonblocking conditions for the MBA(N, e, 2) switching fabric were described. The cost of the new switching network, calculated as the number of active and passive optical elements, was presented as well. This cost was compared also with the cost of the typical baseline switching fabric of the same capacity. When the size of optical switching elements grows, the new switching network is a cheaper solution. When size of such elements is lower, the new structure is more expensive solution.","PeriodicalId":410892,"journal":{"name":"2014 16th International Telecommunications Network Strategy and Planning Symposium (Networks)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124711424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}