Cross-layer scheduling design for OFDMA two-way amplify-and-forward relay networks
Ng DWK, Schober R (2010)
Publication Type: Conference contribution
Publication year: 2010
Conference Proceedings Title: IEEE Wireless Communications and Networking Conference, WCNC
Event location: Sydney
ISBN: 9781424463985
DOI: 10.1109/WCNC.2010.5506466
Abstract
In this paper, cross-layer scheduling for orthogonal frequency division multiple access (OFDMA) two-way half-duplex amplify-and-forward (AF) relay assisted networks is studied. Assuming slow fading channels, cross-layer scheduling design with imperfect channel state information at the transmitter (CSIT) and heterogeneous data rate requirements for the users is modeled as an optimization problem, where the rate, power, and subcarrier allocation policies are optimized to maximize the system good-put (bit/s/Hz successfully received). The optimization problem is solved by using dual decomposition and a distributed resource allocation algorithm is derived. Simulation results illustrate that our proposed distributed cross-layer scheduler achieves practically the same performance as the optimal centralized scheduler after a small number of iterations. ©2010 IEEE.
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APA:
Ng, D.W.K., & Schober, R. (2010). Cross-layer scheduling design for OFDMA two-way amplify-and-forward relay networks. In IEEE Wireless Communications and Networking Conference, WCNC. Sydney, AU.
MLA:
Ng, Derrick Wing Kwan, and Robert Schober. "Cross-layer scheduling design for OFDMA two-way amplify-and-forward relay networks." Proceedings of the IEEE Wireless Communications and Networking Conference 2010, WCNC 2010, Sydney 2010.
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