EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
Subcarrier pairing for amplify-and-forward and decode-and-forward OFDM relay links
IEEE Communications Letters
On the Gaussian MIMO relay channel with full channel state information
IEEE Transactions on Signal Processing
Multi-relay cooperative OFDM with amplify-and-forward relaying
RWS'09 Proceedings of the 4th international conference on Radio and wireless symposium
Throughput maximization for OFDMA cooperative relaying networks with fair subchannel allocation
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Achievable rate of dual-hop OFDM relay system with non-regenerative relay without FFT process
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
IEEE Transactions on Communications
IEEE Transactions on Signal Processing
A joint source and relay power allocation scheme for a class of MIMO relay systems
IEEE Transactions on Signal Processing
IEEE Transactions on Communications
Adaptive power allocation for decode-and-forward MIMO-OFDM relay system
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A limited feedback joint precoding for amplify-and-forward relaying
IEEE Transactions on Signal Processing
MMSE relaying and power allocation over frequency-selective rayleigh fading channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Subcarrier-pair based resource allocation for cooperative AF multi-relay OFDM systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Pilot matrix design for interim channel estimation in two-hop MIMO AF relay systems
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Joint precoding for MIMO-relay systems with partial channel state information
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Fairness-aware resource allocation in OFDMA cooperative relaying network
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Cooperative amplify-and-forward beamforming for OFDM systems with multiple relays
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Subcarrier-pair based resource allocation for cooperative multi-relay OFDM systems
IEEE Transactions on Wireless Communications
Linear non-regenerative multicarrier MIMO relay communications based on MMSE criterion
IEEE Transactions on Communications
Optimal linear non-regenerative multi-hop MIMO relays with MMSE-DFE receiver at the destination
IEEE Transactions on Wireless Communications
Optimum power loading for non-coherent frequency-selective relay channels
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Transceiver design for dual-hop nonregenerative MIMO-OFDM relay systems under channel uncertainties
IEEE Transactions on Signal Processing
Power allocation in MMSE relaying over frequency-selective Rayleigh fading channels
IEEE Transactions on Communications
EURASIP Journal on Advances in Signal Processing
Dynamic Resource Allocation in OFDMA-Based DF Cooperative Relay Networks
Wireless Personal Communications: An International Journal
Dual-Hop Non-regenerative OFDM Relay Systems with Chunk-Based Power Allocation
Wireless Personal Communications: An International Journal
Wireless Communications & Mobile Computing
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We consider a two-hop MIMO-OFDM communication scheme with a source, an amplify-and-forward relay, and a destination. We examine the possibilities of power allocation (PA) over the subchannels in frequency and space domains to maximize the instantaneous rate of this link if channel state information at the transmitter (CSIT) is available. We consider two approaches: (i) separate optimization of the source or the relay PA with individual per node transmit power constraints and (ii) joint optimization of the source and the relay PA with joint transmit power constraint. We provide the optimal PA at the source (or the relay) with a node transmit power constraint that maximizes the instantaneous rate for a given relay (or source) PA. Furthermore, we show that repeating this separate optimization of the source and the relay PA alternately converges and improves the achievable rate of the considered link. Since the joint optimization of the source and the relay PA is analytically not tractable we use a high SNR approximation of the SNR at the destination. This approximation leads to rates which are quite tight to the optimum.