Paper Info
Title
Joint Resource Allocation for Multi-User and Two-Way Multi-Relay OFDMA Networks
Abstract
In this paper, we investigate a joint subcarrier- relay assignment and power allocation scheme for amplify-and- forward (AF) based two-way multi-relay networks. We formulate a sumrate maximization optimization problem with individual power constraints on each node. The target is to seek a unified optimalscheme for subcarrier-relay assignment and power allocation. The problem turns out a mixed integer nonlinear programming problem (MINP), which can be asymptotically solved through Lagrange dual decomposition method (DDM). To evaluate the contradictory of performance and computational complexity, we propose a low complexity suboptimal algorithm to trade off between performance and complexity. Finally, Simulation results are presented to demonstrate the performance of the proposed algorithms.
Year
DOI
Venue
2014
10.1109/VTCSpring.2014.7022968
VTC Spring
Keywords
Field
DocType
power constraints,two-way multirelay ofdma networks,sumrate maximization optimization problem,nonlinear programming,ofdm modulation,integer programming,mixed integer nonlinear programming problem,joint subcarrier-relay assignment,resource allocation,power allocation scheme,computational complexity,lagrange dual decomposition method,multiuser detection,multiuser multirelay ofdma networks,amplify-and-forward,amplify and forward communication,joint resource allocation,ofdm,resource management,throughput,optimization
Subcarrier,Mathematical optimization,Computer science,Electronic engineering,Decomposition method (constraint satisfaction),Resource allocation,Optimization problem,Maximization,Relay,Orthogonal frequency-division multiplexing,Computational complexity theory
Conference
ISSN
Citations 
PageRank 
1550-2252
0
0.34
References 
Authors
10
5
Name
Order
Citations
PageRank
Guixian Xu1224.25
Weiguo Ma2567.07
Yuwei Ren3103.02
Qing Huang4887.15
Yingmin Wang510319.02