Dynamic subchannel and slot allocation for OFDMA networks supporting mixed traffic: upper bound and a heuristic algorithm |
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| Authors: | Gotsis A. Komnakos D. Constantinou P. |
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| Affiliation: | Mobile Radio-Communications Laboratory, ECE School, National Technical University of Athens, 9 Heroon Polytechneiou Street, Zographou Campus, Attica, Greece (e-mail: {gotsis, dkomna, fkonst}@mobile.ntua.gr).; |
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| Abstract: | Optimizing resource allocation over only the frequency dimension in a single-cell OFDMA network is strictly suboptimal when heterogeneous non-real-time data users coexist. In this work we examine how to jointly exploit multi-user diversity on frequency and time domains towards maximizing cell throughput performance and satisfying individual rate and fairness QoS constraints.We develop a performance upper bound as well as an efficient heuristic algorithm for subcarrier and slot allocation which outperforms existing algorithms under polynomial complexity. |
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