Proceedings of the 5th international conference on Information processing in sensor networks
Network correlated data gathering with explicit communication: NP-completeness and algorithms
IEEE/ACM Transactions on Networking (TON)
Separating distributed source coding from network coding
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Decentralized erasure codes for distributed networked storage
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Lossy network correlated data gathering with high-resolution coding
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
ACM Transactions on Sensor Networks (TOSN)
On optimal communication cost for gathering correlated data through wireless sensor networks
Proceedings of the 12th annual international conference on Mobile computing and networking
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Cores of cooperative games in information theory
EURASIP Journal on Wireless Communications and Networking - Theory and Applications in Multiuser/Multiterminal Communications
Data fusion and topology control in wireless sensor networks
WSEAS Transactions on Signal Processing
Energy-Efficient Data Gathering over Wireless Sensor Networks: Correlated Sources and Lossy Channels
CNSR '09 Proceedings of the 2009 Seventh Annual Communication Networks and Services Research Conference
Distributed Network Configuration for Wavelet-Based Compression in Sensor Networks
GSN '09 Proceedings of the 3rd International Conference on GeoSensor Networks
Incremental distributed identification of Markov random field models in wireless sensor networks
IEEE Transactions on Signal Processing
Dynamic algorithms for multicast with intra-session network coding
IEEE Transactions on Information Theory
Amplify and forward for correlated data gathering over hierarchical sensor networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Universal source coding over generalized complementary delivery networks
IEEE Transactions on Information Theory
Spatial correlation and mobility aware traffic modeling for wireless sensor networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Joint coding/routing optimization for correlated sources in wireless visual sensor networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Reliability and efficiency analysis of distributed source coding in wireless sensor networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
On computing compression trees for data collection in wireless sensor networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Transform-based distributed data gathering
IEEE Transactions on Signal Processing
Energy-efficient spatially-adaptive clustering and routing in wireless sensor networks
Proceedings of the Conference on Design, Automation and Test in Europe
Error-resilient and complexity-constrained distributed coding for large scale sensor networks
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Spatial correlation and mobility-aware traffic modeling for wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Compression in wireless sensor networks: A survey and comparative evaluation
ACM Transactions on Sensor Networks (TOSN)
Hi-index | 754.96 |
Consider a set of correlated sources located at the nodes of a network, and a set of sinks that are the destinations for some of the sources. The minimization of cost functions which are the product of a function of the rate and a function of the path weight is considered, for both the data-gathering scenario, which is relevant in sensor networks, and general traffic matrices, relevant for general networks. The minimization is achieved by jointly optimizing a) the transmission structure, which is shown to consist in general of a superposition of trees, and b) the rate allocation across the source nodes, which is done by Slepian-Wolf coding. The overall minimization can be achieved in two concatenated steps. First, the optimal transmission structure is found, which in general amounts to finding a Steiner tree, and second, the optimal rate allocation is obtained by solving an optimization problem with cost weights determined by the given optimal transmission structure, and with linear constraints given by the Slepian-Wolf rate region. For the case of data gathering, the optimal transmission structure is fully characterized and a closed-form solution for the optimal rate allocation is provided. For the general case of an arbitrary traffic matrix, the problem of finding the optimal transmission structure is NP-complete. For large networks, in some simplified scenarios, the total costs associated with Slepian-Wolf coding and explicit communication (conditional encoding based on explicitly communicated side information) are compared. Finally, the design of decentralized algorithms for the optimal rate allocation is analyzed.