Efficient cooperative transmission scheme for resource-constrained networks
Proceedings of the 6th ACM international symposium on Mobility management and wireless access
EURASIP Journal on Wireless Communications and Networking - Special issue on optimization techniques in wireless communications
Robust collaborative-relay beamforming
IEEE Transactions on Signal Processing
IEEE Transactions on Wireless Communications
Efficient power allocation for decentralized distributed space-time block coding
IEEE Transactions on Wireless Communications
Multi-service transmission in multiuser cooperative networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Effects of relay position and power allocation in space-time coded cooperative wireless systems
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Optimal power allocation for DAF cooperative communication with multiple relays
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Filter-and-forward distributed beamforming in relay networks with frequency selective fading
IEEE Transactions on Signal Processing
Power and location optimization for decode-and-forward opportunistic cooperative networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Relay selection and power allocation for cooperative network based on energy pricing
IEEE Communications Letters
Near-capacity cooperative space-time coding employing irregular design and successive relaying
IEEE Transactions on Communications
Near-optimal joint antenna selection for amplify-and-forward relay networks
IEEE Transactions on Wireless Communications
IEEE Communications Letters
Adaptive resource allocation in multiuser cooperative networks with proportional rate constraints
International Journal of Sensor Networks
CCS-MAC: Exploiting the overheard data for compression in wireless sensor networks
Computer Communications
Effects of Nodes Geometry and Power Allocation in Space-Time Coded Cooperative Wireless Systems
Mobile Networks and Applications
Mobile Networks and Applications
Energy efficiency of relay-assisted communications with interference
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
Wireless Communications & Mobile Computing
Wireless Personal Communications: An International Journal
A cross-layer multi-hop cooperative network architecture for wireless ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We study power allocation for the decode-and-forward cooperative diversity protocol in a wireless network under the assumption that only mean channel gains are available at the transmitters. In a Rayleigh fading channel with uniformly distributed node locations, we aim to find the power allocation that minimizes the outage probability under a short-term power constraint, wherein the total power for all nodes is less than a prescribed value during each two-stage transmission. Due to the computational and implementation complexity of the optimal solution, we derived a simple near-optimal solution. In this near-optimal scheme, a fixed fraction of the total power is allocated to the source node in stage I. In stage II, the remaining power is split equally among a set of selected nodes if the selected set is not empty, and otherwise is allocated to the source node. A node is selected if it can decode the message from the source and its mean channel gain to the destination is above a threshold. In this scheme, each node only needs to know its own mean channel gain to the destination and the number of selected nodes. Simulation results show that the proposed scheme achieves an outage probability close to that for the optimal scheme obtained by numerical search, and achieves significant performance gain over other schemes in the literature