This paper discusses the grand challenges associated with the holy grail of understanding and rea... more This paper discusses the grand challenges associated with the holy grail of understanding and reaching the ultimate performance limits of wireless networks. Specifically, the next goal in the networking community is to realize the Future Internet. In this paper, we take a step further from the state of the art in this field, and, describe the main challenges associated with desirable optimal network operation and control in future wireless networks.
In peer-to-peer networks, each peer plays the role of client and server. As a server, it receives... more In peer-to-peer networks, each peer plays the role of client and server. As a server, it receives content requests of others and decides to what extent it will satisfy them by allocating upload bandwidth. As a client, it sends its own requests to others to download content. We consider a star topology network with the capacity bottleneck being the peer access link to the backbone. Peers are assumed to be cooperative but with different resource needs and valuations, captured by their utility function, as well as with different ...
… of the 3rd International Conference on …, Jan 1, 2008
Abstract In peer-to-peer networks, each peer plays the role of client and server. As server, it r... more Abstract In peer-to-peer networks, each peer plays the role of client and server. As server, it receives content requests made by other peers and needs to decide on what basis and to what extent it will satisfy these requests by uploading content to others. As client, it addresses its own requests to appropriate peers to download desired content after resources are granted. We consider a network of peers in a star topology, where the bottleneck is the capacity of the access link connecting a peer to the backbone. Different ...
… of Service, 2008. IWQoS 2008. 16th …, Jan 1, 2008
Abstract Peer-to-peer networks are voluntary resource sharing systems among rational agents that ... more Abstract Peer-to-peer networks are voluntary resource sharing systems among rational agents that are resource providers and consumers. While altruistic resource sharing is necessary for efficient operation, this can only be imposed by incentive mechanisms, otherwise peers tend to behave selfishly. Selfishness in general terms means only consuming resources in order to absorb maximal utility from them and not providing resources to other peers because this would require effort and would not give any utility. In ...
Dynamic spectrum markets of the future will involve complex spectrum transactions among operators... more Dynamic spectrum markets of the future will involve complex spectrum transactions among operators and users. The nontrivial dynamics in channel quality and spatiotemporal spectrum availability call for new ways of spectrum allocation. In this article, we advocate that auction theory can play a decisive role in shaping this evolving landscape since auctions are agnostic to user utility functions, and can build versatile and lightweight allocation mechanisms. Starting from auction preliminaries, we discuss how various intrinsic features of spectrum markets can be addressed with a modified version of auctions.
This paper discusses the grand challenges associated with the holy grail of understanding and rea... more This paper discusses the grand challenges associated with the holy grail of understanding and reaching the ultimate performance limits of wireless networks. Specifically, the next goal in the networking community is to realize the Future Internet. In this paper, we take a step further from the state of the art in this field, and, describe the main challenges associated with desirable optimal network operation and control in future wireless networks.
In peer-to-peer networks, each peer plays the role of client and server. As a server, it receives... more In peer-to-peer networks, each peer plays the role of client and server. As a server, it receives content requests of others and decides to what extent it will satisfy them by allocating upload bandwidth. As a client, it sends its own requests to others to download content. We consider a star topology network with the capacity bottleneck being the peer access link to the backbone. Peers are assumed to be cooperative but with different resource needs and valuations, captured by their utility function, as well as with different ...
… of the 3rd International Conference on …, Jan 1, 2008
Abstract In peer-to-peer networks, each peer plays the role of client and server. As server, it r... more Abstract In peer-to-peer networks, each peer plays the role of client and server. As server, it receives content requests made by other peers and needs to decide on what basis and to what extent it will satisfy these requests by uploading content to others. As client, it addresses its own requests to appropriate peers to download desired content after resources are granted. We consider a network of peers in a star topology, where the bottleneck is the capacity of the access link connecting a peer to the backbone. Different ...
… of Service, 2008. IWQoS 2008. 16th …, Jan 1, 2008
Abstract Peer-to-peer networks are voluntary resource sharing systems among rational agents that ... more Abstract Peer-to-peer networks are voluntary resource sharing systems among rational agents that are resource providers and consumers. While altruistic resource sharing is necessary for efficient operation, this can only be imposed by incentive mechanisms, otherwise peers tend to behave selfishly. Selfishness in general terms means only consuming resources in order to absorb maximal utility from them and not providing resources to other peers because this would require effort and would not give any utility. In ...
Dynamic spectrum markets of the future will involve complex spectrum transactions among operators... more Dynamic spectrum markets of the future will involve complex spectrum transactions among operators and users. The nontrivial dynamics in channel quality and spatiotemporal spectrum availability call for new ways of spectrum allocation. In this article, we advocate that auction theory can play a decisive role in shaping this evolving landscape since auctions are agnostic to user utility functions, and can build versatile and lightweight allocation mechanisms. Starting from auction preliminaries, we discuss how various intrinsic features of spectrum markets can be addressed with a modified version of auctions.
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Papers by George Iosifidi