Proportional-fair downlink resource allocation in OFDMA-based relay networks PROJECT TITLE :Proportional-fair downlink resource allocation in OFDMA-based relay networksABSTRACT:In this paper, we consider resource allocation with proportional fairness in the downlink orthogonal frequency division multiple access relay networks, in which relay nodes operate in decode-and-forward mode. A joint optimization problem is formulated for relay selection, subcarrier assignment and power allocation. Since the formulated primal problem is nondeterministic polynomial time-complete, we make continuous relaxation and solve the dual problem by Lagrangian dual decomposition method. A near-optimal solution is obtained using Karush-Kuhn-Tucker conditions. Simulation results show that the proposed algorithm provides superior system throughput and much better fairness among users comparing with a heuristic algorithm. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Recent advances in filter topologies and realizations for satellite communications eMCCA: An enhanced mesh coordinated channel access mechanism for IEEE 802.11s wireless mesh networks
