Introduction to Algorithms
Convex Optimization
Fundamentals of wireless communication
Fundamentals of wireless communication
Optimal resource allocation in uplink SC-FDMA systems
IEEE Transactions on Wireless Communications
IEEE Transactions on Signal Processing
Bit and Power Loading for OFDM-Based Three-Node Relaying Communications
IEEE Transactions on Signal Processing - Part II
Practical algorithms for a family of waterfilling solutions
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing - Part I
IFDMA: A Scheme Combining the Advantages of OFDMA and CDMA
IEEE Wireless Communications
Power Allocation Schemes for Amplify-and-Forward MIMO-OFDM Relay Links
IEEE Transactions on Wireless Communications
Power control in distributed cooperative OFDMA cellular networks
IEEE Transactions on Wireless Communications - Part 2
On channel estimation and optimal training design for amplify and forward relay networks
IEEE Transactions on Wireless Communications - Part 2
Cooperative communications protocol for multiuser OFDM networks
IEEE Transactions on Wireless Communications
Joint optimization of relay strategies and resource allocations in cooperative cellular networks
IEEE Journal on Selected Areas in Communications
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This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency division multiple-access with frequency-domain equalization technique is employed at both the relay and destination to combat the inter-block and inter-symbol interference caused by multipath propagation. With the assumption that the full channel state information (CSI) is available at the destination, the relay only knows the uplink channels while no CSI is available at the sources, two power allocation schemes are developed for the relay: (i) to minimize the total transmit power at the relay while maintaining the signal-to-interference-plus-noise ratio (SINR) for each user at the destination above a certain level, and (ii) to maximize the worst SINR among all the users subject to a constraint on total relay power. In the first problem, it is shown that SINR adaptation is needed not only to guarantee a feasible solution but also to significantly reduce the transmit power at the relay for certain channel conditions. In the second problem, a flexible multi-level water-filling scheme is developed, which can be easily modified to adapt to the different channel conditions as well as different quality-of-service provision strategies.