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INFOCOM
2011
IEEE
8 years 2 months ago
Maintaining source privacy under eavesdropping and node compromise attacks
—In a sensor network, an important problem is to provide privacy to the event detecting sensor node and integrity to the data gathered by the node. Compromised source privacy can...
Kanthakumar Pongaliur, Li Xiao
CISS
2010
IEEE
8 years 2 months ago
Retrodirective distributed transmit beamforming with two-way source synchronization
—Distributed transmit beamforming has recently been proposed as a technique in which several single-antenna sources cooperate to form a virtual antenna array and simultaneously t...
Robert D. Preuss, D. Richard Brown
MONET
2006
103views more  MONET 2006»
8 years 11 months ago
Minimum-Energy Broadcasting in Multi-hop Wireless Networks Using a Single Broadcast Tree
In this paper we address the minimum-energy broadcast problem in multi-hop wireless networks, so that all broadcast requests initiated by different source nodes take place on the s...
Ioannis Papadimitriou, Leonidas Georgiadis
COMCOM
2006
213views more  COMCOM 2006»
8 years 11 months ago
Energy efficient information dissemination protocols by negotiation for wireless sensor networks
In this paper we consider a distributed and efficient information dissemination and retrieval system for wireless sensor networks. In such a system each sensor node operates auton...
Dandan Liu, Xiaodong Hu, Xiaohua Jia
CN
2006
77views more  CN 2006»
8 years 11 months ago
Optimizing multimedia transcoding multicast trees
In this paper, network hosted transcoding is studied for the optimization of resources in multicast applications. The configuration is as follows: one source node is sending a sig...
Thijs Lambrecht, Bart Duysburgh, Tim Wauters, Fili...
DAM
2010
60views more  DAM 2010»
8 years 11 months ago
One-to-many node-disjoint paths in (n, k)-star graphs
We present an algorithm which given a source node and a set of n - 1 target nodes in the (n, k)-star graph Sn,k, where all nodes are distinct, builds a collection of n - 1 node-di...
Yonghong Xiang, Iain A. Stewart
GLOBECOM
2008
IEEE
9 years 5 days ago
Improved OFDMA Uplink Transmission via Cooperation in the Presence of Frequency Offsets
Abstract— In this paper, we evaluate the performance improvement in an Orthogonal Frequency-Division Multiple Access (OFDMA) uplink achievable with cooperative relaying in the pr...
Zhongshan Zhang, Chintha Tellambura, Robert Schobe...
GLOBECOM
2009
IEEE
9 years 3 months ago
Dual-Hop Adaptive Packet Transmission with Regenerative Relaying for Wireless TDD Systems
We consider the design and performance analysis of adaptive modulation and coding (AMC) applied to regenerative dual-hop transmission systems, where a source node communicates with...
Andreas Muller, Hong-Chuan Yang
GLOBECOM
2007
IEEE
9 years 3 months ago
Amplify-and-Forward Capacity with Transmit Beamforming for MIMO Multiple-Relay Channels
In this paper, we consider a MIMO wireless relay network where communication between a source and a destination node is assisted by multiple relay nodes using the Amplifyand-Forwar...
Erhan Yilmaz, M. Oguz Sunay
STACS
2001
Springer
9 years 3 months ago
On the Complexity of Computing Minimum Energy Consumption Broadcast Subgraphs
We consider the problem of computing an optimal range assignment in a wireless network which allows a specified source station to perform a broadcast operation. In particular, we ...
Andrea E. F. Clementi, Pierluigi Crescenzi, Paolo ...
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