Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Kalman filtering with faded measurements
Automatica (Journal of IFAC)
Asymptotic connectivity properties of cooperative wireless ad hoc networks
IEEE Journal on Selected Areas in Communications - Special issue on stochastic geometry and random graphs for the analysis and designof wireless networks
Robust collaborative-relay beamforming
IEEE Transactions on Signal Processing
Weighted cross-layer cooperative beamforming for wireless networks
IEEE Transactions on Signal Processing
A cooperative phase steering scheme in multi-relay node environments
IEEE Transactions on Wireless Communications
Collaborative beamforming for wireless sensor networks with Gaussian distributed sensor nodes
IEEE Transactions on Wireless Communications
Opportunistic collaborative beamforming with one-bit feedback
IEEE Transactions on Wireless Communications
Distributed transmit beamforming: challenges and recent progress
IEEE Communications Magazine
Optimal and robust distributed channel co-phasing for cooperative parallel-relay networks
RWS'09 Proceedings of the 4th international conference on Radio and wireless symposium
Pilot-assisted distributed co-phasing for wireless sensor networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Simple, zero-feedback, collaborative beamforming for emergency radio
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Adaptive multi-node incremental relaying for hybrid-ARQ in AF relay networks
IEEE Transactions on Wireless Communications
Collaborative null-steering beamforming for uniformly distributed wireless sensor networks
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Distributed null-steering beamforming for wireless sensor networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Distributed transmit beamforming using feedback control
IEEE Transactions on Information Theory
On the diversity order of non-orthogonal amplify-and-forward over block-fading channels
IEEE Transactions on Wireless Communications
Simple, zero-feedback, distributed beamforming with unsynchronized carriers
IEEE Journal on Selected Areas in Communications - Special issue on simple wireless sensor networking solutions
A little feedback can simplify sensor network cooperation
IEEE Journal on Selected Areas in Communications - Special issue on simple wireless sensor networking solutions
IEEE Transactions on Wireless Communications
AST/UCMA/ISA/ACN'10 Proceedings of the 2010 international conference on Advances in computer science and information technology
Distributed transmit beamforming without phase feedback
EURASIP Journal on Wireless Communications and Networking - Special issue on theoretical and algorithmic foundations of wireless ad hoc and sensor networks
Self-optimized collaborative data communication in wireless sensor networks
Proceedings of the 2011 workshop on Organic computing
CIT'11 Proceedings of the 5th WSEAS international conference on Communications and information technology
Efficient Radio Transmission with Adaptive and Distributed Beamforming for Intelligent WiMAX
Wireless Personal Communications: An International Journal
Zero-Feedback, Collaborative Beamforming for Emergency Radio: Asymptotic Analysis
Mobile Networks and Applications
Mobile Networks and Applications
AdaSynch: A General Adaptive Clock Synchronization Scheme Based on Kalman Filter for WSNs
Wireless Personal Communications: An International Journal
Fully wireless implementation of distributed beamforming on a software-defined radio platform
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Collective communication for dense sensing environments
Journal of Ambient Intelligence and Smart Environments
Wireless Communications & Mobile Computing
The Small and Silent Force Multiplier: A Swarm UAV--Electronic Attack
Journal of Intelligent and Robotic Systems
Synchronization Analysis for Wireless TWRC Operated with Physical-layer Network Coding
Wireless Personal Communications: An International Journal
Energy-efficient data dissemination using beamforming in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
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Energy efficient communication is a fundamental problem in wireless ad-hoc and sensor networks. In this paper, we explore the feasibility of a distributed beamforming approach to this problem, with a cluster of distributed transmitters emulating a centralized antenna array so as to transmit a common message signal coherently to a distant base station. The potential SNR gains from beamforming are well-known. However, realizing these gains requires synchronization of the individual carrier signals in phase and frequency. In this paper we show that a large fraction of the beamforming gains can be realised even with imperfect synchronization corresponding to phase errors with moderately large variance. We present a master-slave architecture where a designated master transmitter coordinates the synchronization of other (slave) transmitters for beamforming. We observe that the transmitters can achieve distributed beamforming with minimal coordination with the base station using channel reciprocity. Thus, inexpensive local coordination with a master transmitter makes the expensive communication with a distant base station receiver more efficient. However, the duplexing constraints of the wireless channel place a fundamental limitation on the achievable accuracy of synchronization. We present a stochastic analysis that demonstrates the robustness of beamforming gains with imperfect synchronization, and demonstrate a tradeoff between synchronization overhead and beamforming gains. We also present simulation results for the phase errors that validate the analysis