On-demand diversity wireless relay networks
Mobile Networks and Applications
Cooperative Wireless Networking Beyond Store-and-Forward
Wireless Personal Communications: An International Journal
Power allocation in wireless multi-user relay networks
IEEE Transactions on Wireless Communications
Precoder design for non-regenerative MIMO relay systems
IEEE Transactions on Wireless Communications
Capacity of a class of modulo-sum relay channels
IEEE Transactions on Information Theory
Achievable rates and resource allocation strategies for imperfectly known fading relay channels
EURASIP Journal on Wireless Communications and Networking
Joint power and channel resource allocation for F/TDMA decode and forward relay networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Centralized and distributed power allocation in multi-user wireless relay networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Relay scheduling in the half-duplex Gaussian parallel relay channel
IEEE Transactions on Information Theory
Optimal power allocation for orthogonal relay systems with quality-of-service constraints
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Cooperation with an untrusted relay: a secrecy perspective
IEEE Transactions on Information Theory
Resource allocation for the multiband relay channel: a building block for hybrid wireless networks
EURASIP Journal on Wireless Communications and Networking
EURASIP Journal on Wireless Communications and Networking - Special issue on interference management in wireless communication systems: theory and applications
Technoeconomic evaluation of cooperative relaying transmission techniques in OFDM cellular networks
EURASIP Journal on Advances in Signal Processing - Special issue on cooperative MIMO multicell networks
TwinsNet: a cooperative MIMO mobile sensor network
UIC'06 Proceedings of the Third international conference on Ubiquitous Intelligence and Computing
Efficient and adaptive resource scheduling in IEEE 802.16j transparent relay networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Energy efficient management framework for multihop TDMA-based wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Hi-index | 755.02 |
A Gaussian orthogonal relay model is investigated, where the source transmits to the relay and destination in channel 1, and the relay transmits to the destination in channel 2, with channels 1 and 2 being orthogonalized in the time–frequency plane in order to satisfy practical constraints. The total available channel resource (time and bandwidth) is split into the two orthogonal channels, and the resource allocation to the two channels is considered to be a design parameter that needs to be optimized. The main focus of the analysis is on the case where the source-to-relay link is better than the source-to-destination link, which is the usual scenario encountered in practice. A lower bound on the capacity (achievable rate) is derived, and optimized over the parameter$theta$, which represents the fraction of the resource assigned to channel 1. It is shown that the lower bound achieves the max-flow min-cut upper bound at the optimizing$theta$, the common value thus being the capacity of the channel at the optimizing$theta$. Furthermore, it is shown that when the relay-to-destination signal-to-noise ratio (SNR) is less than a certain threshold, the capacity at the optimizing$theta$is also the maximum capacity of the channel over all possible resource allocation parameters$theta$. Finally, the achievable rates for optimal and equal resource allocations are compared, and it is shown that optimizing the resource allocation yields significant performance gains.