Πλοήγηση ανά Συγγραφέα "Gitzenis, S."
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Asymptotic laws for content replication and delivery in wireless networks
Gitzenis, S.; Paschos, G. S.; Tassiulas, L. (2012)A key consideration in novel communication paradigms in multihop wireless networks regards the scalability of the network. We investigate the case of nodes making random requests on content stored in multiple replicas over ... -
Asymptotic Laws for Joint Content Replication and Delivery in Wireless Networks
Gitzenis, S.; Paschos, G. S.; Tassiulas, L. (2013)We investigate the scalability of multihop wireless communications, a major concern in networking, for the case that users access content replicated across the nodes. In contrast to the standard paradigm of randomly selected ... -
The effect of caching in sustainability of large wireless networks
Paschos, G. S.; Gitzenis, S.; Tassiulas, L. (2012)We study the scalability of multihop wireless communications, a major concern in networking, for the case that users access content cached across the nodes. In contrast to the standard paradigm of randomly selected ... -
Efficient file replication in large wireless networks with dynamic popularity
Gitzenis, S.; Toumpis, S.; Tassiulas, L. (2014)We investigate the problem of replication in large wireless networks that employ caching in the case of a single file whose popularity varies with time. As opposed to the case of static popularity, in this case for the ... -
Enhancing wireless networks with caching: Asymptotic laws, sustainability & trade-offs
Gitzenis, S.; Paschos, G. S.; Tassiulas, L. (2014)We investigate on the sustainability of multihop wireless communications in the context of Information-Centric Networks, when content is replicated in caches over the network. The problem is cast in a flat wireless network ... -
Fast power-up active link protection in autonomous distributed transmitter power control
Gitzenis, S.; Bambos, N. (2008)In this work, we propose an enhancement to the DPC/ALP (Distributed Power Control with Active Link Protection) algorithm that allows fast power ramp-up without compromising the ALP guarantee. The original DPC algorithm was ... -
High-speed optical cache memory as single-level shared cache in chip-multiprocessor architectures
Maniotis, P.; Gitzenis, S.; Tassiulas, L.; Pleros, N. (2015)We present an optical bus-based Chip Multiprocessor architecture where the processing cores share an optical single-level cache unit. Physically, the optical cache is implemented externally in a separate chip located next ... -
Joint Task Migration and Power Management in Wireless Computing
Gitzenis, S.; Bambos, N. (2009)We investigate a wireless computing architecture, where mobile terminals can execute their computation tasks either 1) locally, at the terminal's processor, or 2) remotely, assisted by the network infrastructure, or even ... -
Load balancing in wireless sensor networks using kirchhoff's voltage law
Toumpis, S.; Gitzenis, S. (2009)We study load balancing in wireless networks with a single class of traffic, focusing our attention on an important example, i.e., Wireless Sensor Networks. The analysis is based on the Wireless Minimum Cost Problem, an ... -
A novel chip-multiprocessor architecture with optically interconnected shared L1 optical cache memory
Maniotis, P.; Gitzenis, S.; Tassiulas, L.; Pleros, N. (2014)We demonstrate a system-level CMP architecture where optical cache memories are shared among multiple processing cores through optical buses. System-level simulations show 25-45% execution time improvement and significant ...