Elements of information theory
Elements of information theory
Bit loading algorithms for cooperative OFDM systems
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
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
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
Multiuser subchannel matching algorithms for two-hop OFDM relay networks
Proceedings of the 1st ACM workshop on Mobile internet through cellular networks
Resource allocation optimization for OFDM-based amplify-and-forward multi-relay system
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
Optimal asymmetric resource allocation with limited feedback for OFDM based relay systems
IEEE Transactions on Wireless Communications
Subcarrier allocation for OFDMA relay networks with proportional fair constraint
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Dynamic resource allocation with limited feedback for OFDM based cooperative networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Adaptive resource allocation for multi-destination relay systems based on OFDM modulation
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Correction to "optimally joint subcarrier matching and power allocation in OFDM multihop system"
EURASIP Journal on Advances in Signal Processing
Wireless Personal Communications: An International Journal
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Orthogonal frequency division multiplexing (OFDM) multihop system is a promising way to increase capacity and coverage. In this paper, we propose an optimally joint subcarrier matching and power allocation scheme to further maximize the total channel capacity with the constrained total system power. First, the problem is formulated as a mixed binary integer programming problem, which is prohibitive to find the global optimum in terms of complexity. Second, by making use of the equivalent channel power gain for any matched subcarrier pair, a low-complexity scheme is proposed. The optimal subcarrier matching is to match subcarriers by the order of the channel power gains. The optimal power allocation among the matched subcarrier pairs is water-filling. An analytical argument is given to prove that the two steps achieve the optimally joint subcarrier matching and power allocation. The simulation results show that the proposed scheme achieves the largest total channel capacity as compared to the other schemes, where there is no subcarrier matching or power allocation.