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Auction Models Supporting End-to-End Connection Trading

Kołtyś K., Pieńkosz K., Toczyłowski E.

Journal of Telecommunications and Information Technology

2012

nr 2

55-62

The paper concerns bandwidth allocation problem on the telecommunication market where there are many sellers and buyers. Sellers offer the bandwidth of telecommunication links. Buyers are interested in the purchase of the bandwidth of several links that makes up an end-to-end connection between two nodes of telecommunication network. We analyze three auction models supporting such a bandwidth exchange: NSP (network second price), BCBT (model for balancing communication bandwidth trading) and BCBT-CG which is a modification of BCBT that applies column generation technique. All of these models concern divisible network resources, treat bandwidth of telecommunication links as an elementary commodity offered for sale, and allow for purchasing bandwidth along multiple paths joining two telecommunication nodes. All of them also aim at maximizing the social welfare. Considered auction models have been compared in the respect of economic and computational efficiency. Experimental studies have been performed on several test instances based on the SNDlib library data sets.

Scentralizowane negocjacje multilateralne w handlu wielotowarowym z wykorzystaniem standardów M3 i ebXML

Pałka P., Tkaczyk T., Wilk R.

Studia Informatica

2011

Vol. 32, nr 2B

455-466

Negocjacje wielostronne mają duże znaczenie, gdy przedmioty negocjacji są ze sobą powiązane pewnymi warunkami, np. w handlu wielotowarowym. Wówczas struktura przedmiotów handlu może wymusić negocjacje multilateralne. Przedstawiono przykład ilustrujący taką sytuację. Do implementacji wykorzystano elementy standardu ebXML, język BPEL oraz model M3 (Multi-commodity Market Model). Pokazano także wyniki symulacji procesu negocjacji.

Multilateral negotiations are necessary when subjects of negotiations are related to each other with some constraints, e.g. in multi-commodity market. In such case, a structure of the subjects may enforce multilateral negotiations. An example is described, implemented using some elements of ebXML standard, BPEL language and M3 (Multi-commodity Market Model). Results of simulations of the decision process are presented.

Application of open multi-commodity market data model on the communication bandwidth market

Kasprzak P., Kaleta M., Pałka P., Smoliła K., Toczyłowski E., Traczyk T.

Journal of Telecommunications and Information Technology

2007

nr 4

45-50

In the paper the market model for balancing communication bandwidth trade (BCBT) is analyzed in the form of multi-commodity market data model (M3). The distinguishing feature of BCBT model is that it assumes that market players can place buy offers not only for isolated network resources - inter-node links, but also for end-to-end network paths of predefined capacity, that is, every offer concerns a point-to-point bandwidth connection between a pair of specified locations in a communication network. The model enables effective balancing of sell and buy offers for network resources in a way which maximizes global economic welfare. The open multi-commodity market data model provides efficient and clear mechanisms, which support the environment of auctions and multi-commodity exchanges, especially when the trade is constrained by the infrastructure resources. Thus the model may be used in designing open information systems for market balancing and clearing in the context of multicommodity trade in various network infrastructure sectors.