Relay OFDMA System for Wireless Multimedia Services in Home Area Networks
ICNC '07 Proceedings of the Third International Conference on Natural Computation - Volume 05
Resource management policies for fixed relays in cellular networks
Computer Communications
Multiuser adaptive subcarrier-and-bit allocation with adaptive cell selection for OFDM systems
IEEE Transactions on Wireless Communications
Capacity of fading channels with channel side information
IEEE Transactions on Information Theory
Relay-based deployment concepts for wireless and mobile broadband radio
IEEE Communications Magazine
Resource Allocation for OFDMA Relay Networks With Fairness Constraints
IEEE Journal on Selected Areas in Communications
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An adaptive resource allocation algorithm is proposed for a two-hop wireless relay network. Path selection is based on the channel state so as to choose optimal relay stations (RSs). Then, a subcarrier-and-bit allocation scheme is developed to minimize the total transmission power of the system, subject to the total bits available. In addition, this scheme enables to guarantee the quality of service (QoS) of individual users. In this paper, three-fixed-RS architecture is modeled in one cell, which supports both point-to-multipoint (PMP) and relay transmission. We evaluate the performance of subcarrier-and-bit allocation scheme with power-saving technique, together with RS selection, based on simulation. Theoretical analysis and simulation results show that the proposed adaptive resource allocation scheme is efficient for providing good performance in a two-hop relay networks.