Πλοήγηση ανά Συγγραφέα "Georgiadis, L."
Αποτελέσματα 1-18 από 18
-
Asymptotically optimal policies for wireless networks with rechargeable batteries
(2008)We consider the problem of cross-layer resource allocation for single-hop, time-varying, wireless networks operating with rechargeable batteries under general arrival, channel and recharge processes. The objective is to ... -
Broadcast erasure channel with feedback-capacity and algorithms
(2009)We consider the two-user broadcast erasure channel where feedback in the form of ack messages is fed back to the transmitter. We provide an upper bound to the capacity region of this system. We then present two algorithms ... -
Capacity and Stable Throughput Regions for the Broadcast Erasure Channel With Feedback: An Unusual Union
(2013)We consider a source node broadcasting to two receivers over a general erasure channel with receiver feedback. We characterize the capacity region of the channel and construct algorithms based on linear network coding ... -
Capacity-achieving encoding for the broadcast erasure channel with multiple users
(2011)We consider the N-user memoryless broadcast erasure channel with N unicast sessions (one for each user) where receiver feedback is sent to the transmitter in the form of ACK/NACK messages. We first provide a generic outer ... -
Control of Wireless Networks with Rechargeable Batteries
(2010)We consider the problem of cross-layer resource allocation for wireless networks operating with rechargeable batteries under general arrival, channel state and recharge processes. The objective is to maximize total system ... -
Dynamic Wireless Network Coding With Overhearing and Variable Channel Rates
(2015)We study a one-hop broadcast channel with two receivers. The receivers have side information obtained by overhearing wireless channels. The relay takes control decisions by coding transmissions based on its knowledge of ... -
An efficient power constrained transmission scheme for hybrid OW/RF systems
(2014)This paper investigates link layer transmission schemes for hybrid optical wireless (OW)/radio frequency (RF) systems with constraints on both per-link and total power consumption at the transmitter. Assuming timeslot ... -
Exploiting wireless channel, state information for throughput maximization
(2004)We consider the problem of scheduling packets over channels with time-varying quality. This problem has received a lot of attention lately in the context of devising methods for providing quality of service in wireless ... -
Minimal Evacuation Times and Stability
(2015)We consider a system where packets (jobs) arrive for processing using one of the policies in a given class. We study the connection between the minimal evacuation time and the stability region of the system and show that ... -
A modular framework for implementing joint wireless network coding and scheduling algorithms
(2013)Intersession network coding (NC) can provide significant performance benefits via mixing packets at wireless routers; these benefits are especially pronounced when NC is applied in conjunction with intelligent scheduling. ... -
Multiuser Broadcast Erasure Channel With Feedback-Capacity and Algorithms
(2013)We consider the N-user broadcast erasure channel with unicast sessions (one for each user) where receiver feedback is regularly sent to the transmitter in the form of ACK/NACK messages. We first provide a generic outer ... -
The mutual benefits of primary-secondary user cooperation in wireless cognitive networks
(2014)In cognitive radio networks, secondary users (SUs) may cooperate with the primary user (PU) in order to obtain more transmission opportunities and thus maximize their throughput. The synergy consists in the following: the ... -
Optimal overload response in sensor networks
(2006)A single commodity network that models the information flow in an arbitrary topology sensor field that collects and forwards information to a backbone through certain designated gateway nodes is considered. Resilient ... -
Resource allocation and cross-layer control in wireless networks
(2006)Information flow in a telecommunication network is accomplished through the interaction of mechanisms at various design layers with the end goal of supporting the information exchange needs of the applications. In wireless ... -
Scheduling with pairwise XORing of packets under statistical overhearing information and feedback
(2012)We study the problem of scheduling packets from several flows traversing a given node which can mix packets belonging to different flows. Practical wireless network coding solutions depend on knowledge of overhearing events ... -
Throughput-Optimal Link-Layer Design in Power Constrained Hybrid OW/RF Systems
(2015)The aim of this paper is to develop link layer transmission schemes for hybrid optical wireless (OW)/radio frequency (RF) systems, with constraints on both per-link and total average power consumption at the transmitter. ... -
Wireless network coding with partial overhearing information
(2013)We study an 1-hop broadcast channel with two receivers. Due to overhearing channels, the receivers have side information which can be leveraged by interflow network coding techniques to provide throughput increase. In this ... -
XOR-Based Encoding With Instantaneous Decoding for the Broadcast Erasure Channel With Feedback: The Three-User Case
(2014)We study the case of a three-user broadcast erasure channel with multiple unicast traffic sessions, where feedback from the users is fed back to the transmitter in the form of positive acknowledgment (ACK)/negative ...