@article {Vasiliadis-2013x,
	title = {Performance Tuning of Dual-priority Delta Networks through Queuing Scheduling Disciplines},
	journal = {Journal of Communications Software and Systems},
	volume = {9(4)},
	number = {4},
	year = {2013},
	month = {12/2013},
	pages = {222-235},
	publisher = {Croatian Communications and Information Society},
	abstract = {Differentiated Services (DiffServ) and other scheduling strategies are now widespread in the traditional, {\textquotedblleft}best effort{\textquotedblright} Internet. These Internet Architectures offer Quality of Service (QoS) guarantees for important customers at the same time as supporting less critical applications of lower priority. Strict priority queuing (PQ), weighted round robin (WRR), and class-based weighted fair queuing (CBWFQ) are three common scheduling disciplines for differentiation of services in telecommunication networks. In this paper, a comparative performance study of the above PQ, WRR and CBWFQ queuing scheduling policies applied on a double-buffered, 6-stage Multistage Interconnection Network (MIN) that natively supports a 2-class priority mechanism is presented and analyzed using simulation experiments. We also consider a 10-stage MIN, to validate that the conclusions drawn from the 6-stage MIN apply to MINs of different sizes. The findings of this paper can be used by MIN designers to optimally configure their networks.},
	doi = {10.24138/jcomss.v9i4.143},
	url = {https://hrcak.srce.hr/180111},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@article {vasiliadis2011a,
	title = {Performance Analysis of Dual-Priority Multilayer Multistage Interconnection Networks under Multicast Environment},
	journal = {Journal of Networks},
	volume = {June},
	year = {2011},
	pages = {858{\textendash}871},
	abstract = {Next-generation network architectures strive to achieve high bandwidth and ultralow latency for the packets traversing the offered end-to-end paths. Multistage Interconnection Networks (MINs) are often employed for implementing NGNs, but while MINs are fairly flexible in handling varieties of traffic loads, they tend to quickly saturate under broadcast and multicast traffic, especially at increasing size networks. As a response to this issue, multilayer MINs have been proposed, however their performance prediction and evaluation has not been studied sufficiently insofar. In this paper, we evaluate and discuss the performance of multilayer MINs under multicast traffic, considering also two levels of packet priorities, since support for multiple QoS levels is an indispensible requirement for NGNs. Different offered loads and buffer size configurations are examined in this context, and performance results are given for the two most important network performance factors, namely packet throughput and delay. We also introduce and calculate a universal performance fac{\textlnot}tor, which includes the importance aspect of each of the above main performance factors. The findings of this study can be used by NGN system designers in order to predict the performance of each configuration and adjust the design of their communication infrastructure to the traffic requirements at hand.},
	keywords = {banyan networks, multicast traffic, multilayer networks, Multistage interconnection networks, performance analysis},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@article {vasiliadis11,
	title = {Performance Analysis of Multi-Layered Multi-Priority Asymetric-Sized Delta Networks},
	journal = {Journal of Computer Systems, Networks, and Communications},
	volume = {to appear},
	year = {2011},
	pages = {12},
	abstract = {In this paper the performance of multi-layered asymmetric-sized finite-buffered Delta Networks supporting multi-class routing traffic is presented and analyzed in the uniform traffic conditions under various loads using simulations. The rationale behind introducing asymmetric-sized buffered systems is to have a better exploitation of available buffer spaces, while the implementation of multi-layered architecture is applied in order to further improve the overall performance of network. The findings of this performance evaluation can be used by network designers for drawing optimal configurations while setting up the network, so as to best meet the performance and cost requirements under the anticipated traffic load and quality of service specifications.},
	doi = {10.1155/2011/723102},
	url = {https://www.hindawi.com/journals/jcnc/2011/723102/},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@article {vasiliadis2011b,
	title = {Performance Study of Multi-Layered Multistage Interconnection Networks under Hotspot Traffic Conditions},
	journal = {Journal of Computer Systems, Networks, and Communications},
	volume = {2010},
	year = {2010},
	pages = {11 pages},
	abstract = {The performance of Multistage Interconnection Networks (MINs) under hotspot traffic, where some percentage of the traffic is targeted at single nodes, which are also called hot-spots, is of crucial interest. The prioritizing of packets has already been proposed at previous works as alleviation to the tree saturation problem, leading to a scheme that natively supports 2-class priority traffic. In order to prevent hotspot traffic from degrading uniform traffic we expand previous studies by introducing multi-layer Switching Elements (SEs) at last stages in an attempt to balance between MIN performance and cost. In this paper the performance evaluation of dual-priority, double-buffered, multi-layer MINs under single hotspot setups is presented and analyzed using simulation experiments. The findings of this paper can be used by MIN designers to optimally configure their networks},
	keywords = {Hotspot traffic, multi-layer networks, Multistage interconnection networks, Performance evaluation},
	doi = {10.1155/2010/403056},
	url = {https://www.hindawi.com/journals/jcnc/2010/403056/},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@conference {Vasiliadis2009395,
	title = {Performance evaluation of multicast routing over multilayer multistage interconnection networks},
	booktitle = {Proceedings of the 2009 5th Advanced International Conference on Telecommunications, AICT 2009},
	year = {2009},
	note = {cited By (since 1996) 0},
	month = {5},
	pages = {395-403},
	abstract = {Multilayer MINs have emerged mainly due to the increased need for routing capacity in the presence of multicast and broadcast traffic, their performance prediction and evaluation however has not been studied sufficiently insofar. In this paper, we use simulation to evaluate the performance of multilayer MINs with switching elements of different buffer sizes and under different offered loads. The findings of this paper can be used by MIN designers to optimally configure their networks. Β{\textcopyright} 2009 IEEE.},
	keywords = {Broadcast traffic, Buffer sizes, Interconnection networks, Multicast routing, Multicasting, Multicasts, Multilayers, Multistage interconnection network, Network routing, Performance evaluation, Performance prediction, Switching elements},
	doi = {10.1109/AICT.2009.72},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70349732883\&partnerID=40\&md5=e85525a7b36de8d84ea1ae52110ff1f9},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis and E. Glavas}
}
@conference {Vasiliadis200890,
	title = {Performance Evaluation of Distance Vector Routing Protocol on a Wireless Circular Model},
	booktitle = {Proceedings of the IEEE sponsored International Joint Conference CISSE 2007},
	year = {2008},
	month = {12},
	pages = {323-328},
	publisher = {Springer Netherlands},
	organization = {Springer Netherlands},
	abstract = {In this paper, a wireless Circular Model over a generic distance-vector routing protocol is presented and analyzed. The performance of this model over the Distance Vector protocol, which is an implementation of Distributed Bellman-Ford algorithm, has been evaluated by using the simulation environment of NS-2. We conducted an extensive evaluation study for various mobility schemes in order to incorporate the behavior of nodes and the routing protocol in a real-life hotspot situation In the test-bed model, while the number of source nodes was allowed to arbitrarily vary, there was exactly one destination node, closely modeling thus real-life situations where a single hotspot/access point exists. Finally, different constant bit rates (CBR) were used in order to estimate the throughput of receiving, dropping rates, the number of lost packets, as well as the average packet delay under various traffic conditions. This study is aimed to help wireless network designers in choosing the best suited routing protocols for their networks, through making explicit performance figures for common network setups.},
	doi = {10.1007/978-1-4020-8737-0},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis},
	editor = {Tarek Sobh and Khaled Elleithy and Ausif Mahmood and Mohammad A. Karim}
}
@conference {Vasiliadis2007,
	title = {Performance Analysis of dual priority single-buffered blocking Multistage Interconnection Networks},
	booktitle = {3rd International Conference on Networking and Services, ICNS 2007},
	year = {2007},
	month = {6},
	publisher = {IEEE},
	organization = {IEEE},
	abstract = {In this paper a novel architecture of dual priority single-buffered blocking Multistage Interconnection Networks (MINs) is presented. We analyzed their performance in the uniform traffic condition under various loads using simulations. We compared the dual priority architecture against a single priority MIN, by gathering metrics for the two most important network performance factors, namely packet throughput and the mean time a packet needs to traverse the network. We demonstrated the gain of the high priority packets against the low priority packets under different configuration schemas. In this paper we focus on studying the influence of the priority bit in the header field of transmitted packets on the performance of high and low priority traffic of a MIN. Performance prediction before actual network implementation and understanding the impact of parameter settings in a MIN setup are valuable assets for network designers for minimizing overall deployment costs and delivering efficient networks. Β{\textcopyright} 2007 IEEE.},
	keywords = {Computer architecture, Interconnection networks, International conferences, Low priority (LP), Metrics (CO), Multistage interconnection networks Multistage interconnection netowrk (MIN), Network architecture, Network designers, Network performances, Novel architecture, Packet throughput, Parameter estimation, Parameter settings, Performance analyses, Performance predictions, Schemas, Systems engineering, telecommunication, Telecommunication networks, Uniform traffic},
	doi = {10.1109/ICNS.2007.92},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-47049115567\&partnerID=40\&md5=148ac10a4b9facdaf1066911f87f5bb5},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@conference {Vasiliadis2007a,
	title = {Performance evaluation of two-priority network schema for single-buffered delta networks},
	booktitle = {IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC},
	year = {2007},
	note = {cited By (since 1996) 0},
	month = {9},
	abstract = {In this paper a novel two-priority network schema is presented, and exemplified through its application on singlebuffered Delta Networks in packet switching environments. Network operations considered include conflict resolution and communication strategies. The proposed scheme is evaluated and compared against the single-priority scheme. Performance evaluation was conducted through simulation, due to the complexity of the model, and uniform traffic conditions were considered. Metrics were gathered for the two most important network performance factors, namely packet throughput and the mean time a packet needs to traverse the network. The model can also be uniformly applied to several representative networks providing a basis for fair comparison and the necessary data for network designers to select optimal values for network operation parameters. Β{\textcopyright} 2007 IEEE.},
	keywords = {Computer simulation, Mobile radio systems, Network operations, Packet switching, Single-buffered delta networks, Telecommunication networks, Telecommunication traffic},
	doi = {10.1109/PIMRC.2007.4394153},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-44349140122\&partnerID=40\&md5=d8cd4384e09916ce753625ec5f2c8549},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis and E. Glavas}
}
@conference {Vasiliadis2006b,
	title = {Performance analysis of blocking banyan switches},
	booktitle = {Proceedings of the IEEE sponsored International Joint Conference on Computer, Information and System Sciences and Engineering - CIS2E 06},
	year = {2006},
	month = {12},
	abstract = {Banyan Networks are a major class of Multistage Interconnection Networks (MINs). They have been widely used as efficient interconnection structures for parallel computer systems, as well as switching nodes for high-speed communication networks. The performance of them is mainly determined by their communication throughput and their mean packet delay. In this paper we use a model that is based on a universal performance factor, which includes the importance aspect of each of the above main performance factors (throughput and delay) in the design process of a MIN. The model can also uniformly be applied to several representative networks. The complexity of the model requires to be investigated by time-consuming simulations. In this paper we study a typical (8X8) Baseline Banyan Switch that consists of (2X2) Switching Elements (SEs). The objective of this simulation is to determine the optimal buffer size for the MIN stages under different conditions.},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
@conference {Vasiliadis2006a,
	title = {Performance Analysis of Multistage Interconnection Networks determining optimal parameters for data-intensive business applications},
	booktitle = {Proceedings of the 7th IBIMA Conference},
	year = {2006},
	month = {12},
	abstract = {Multistage Interconnection Networks (MINs) are frequently used for connecting processors in parallel computing systems or constructing high speed networks such as ATM (based on Asynchronous Transfer Mode) and Gigabit Ethernet Switches. New applications require distributed computing implementations, but old networks are too slow to allow efficient use of remote resources. Moreover, multimedia are considered as applications with high bandwidth requirements. Some of them are also sensitive to packet loss and claim reliable data transmission. Specific applications require bulk data transfers for database replication or load balancing and therefore packet loss minimization is necessary in order to increase the performance of them. The demand for high performance multimedia services such as full motion video on demand is becoming an increasingly important driving force in the communication market in the Digital Age. Thus, the performance of MINs is a crucial factor, which we have to take into account in the design of new applications. Their performance is mainly determined by their communication throughput and cell latency, which have to be investigated either by time-consuming simulations or approximated by mathematical models. In this paper we investigate the performance of MINs in order to determine optimal values for hardware parameters under diferent operating conditions.},
	author = {D.C. Vasiliadis and G.E. Rizos and Costas Vassilakis}
}
