OFDM for cooperative networking with limited channel state information
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
IEEE Transactions on Wireless Communications
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
Resource Allocation for OFDMA Relay Networks With Fairness Constraints
IEEE Journal on Selected Areas in Communications
Optimally joint subcarrier matching and power allocation in OFDM multihop system
EURASIP Journal on Advances in Signal Processing
Throughput maximization for OFDMA cooperative relaying networks with fair subchannel allocation
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Subcarrier coupling and scheduling for multi-user OFDMA relaying networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Fairness-aware resource allocation in OFDMA cooperative relaying network
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Subcarrier selection and power allocation for amplify-and-forward relaying over OFDM links
IEEE Transactions on Wireless Communications
Efficient MAC protocol for subcarrier-wise rate adaptation over WLAN
EURASIP Journal on Wireless Communications and Networking
Dynamic Resource Allocation in OFDMA-Based DF Cooperative Relay Networks
Wireless Personal Communications: An International Journal
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We investigate the resource allocation problem for an OFDM cooperative network with a single source-destination pair and multiple relays. Assuming knowledge of the instantaneous channel gains for all links in the entire network, we propose several bit and power allocation schemes aiming at minimizing the total transmission power under a target rate constraint. First, an optimal and efficient bit loading algorithm is proposed when the relay node uses the same subchannel to relay the information transmitted by the source node. To further improve the performance gain, subchannel permutation, in which the subchannels are reallocated at relay nodes, is considered. An optimal subchannel permutation algorithm is first proposed and then an efficient suboptimal algorithm is considered to achieve a better complexity-performance tradeoff. A distributed bit loading algorithm is also proposed for ad hoc networks. Simulation results show that significant performance gains can be achieved by the proposed bit loading algorithms, especially when subchannel permutation is employed.