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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Adaptive Resource Allocation for MC-CDMA and OFDMA in Reconfigurable Radio Systems

  • Choi, Yonghoon (Department of Electrical Engineering, Chonnam National University)
  • Received : 2013.08.25
  • Accepted : 2013.12.16
  • Published : 2014.12.01
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Abstract

This paper studies the uplink resource allocation for multiple radio access (MRA) in reconfigurable radio systems, where multiple-input and multiple-output (MIMO) multicarrier-code division multiple access (MC-CDMA) and MIMO orthogonal frequency-division multiple access (OFDMA) networks coexist. By assuming multi-radio user equipment with network-guided operation, the optimal resource allocation for MRA is analyzed as a cross-layer optimization framework with and without fairness consideration to maximize the uplink sum-rate capacity. Numerical results reveal that parallel MRA, which uses MC-CDMA and OFDMA networks concurrently, outperforms the performance of each MC-CDMA and OFDMA network by exploiting the multiuser selection diversity.

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References

  1. A. Ghosh et al., "Heterogeneous Cellular Networks: From Theory to Practice," IEEE Commun. Mag., vol. 50, no. 6, June 2012, pp. 54-64.
  2. S. Buljore et al., "Architecture and Enablers for Optimized Radio Resource Usage in Heterogeneous Wireless Access Networks: The IEEE 1900.4 Working Group," IEEE Commun. Mag., vol. 47, no. 1, Jan. 2009, pp. 122-129.
  3. M. Mueck et al., "ETSI Reconfigurable Radio Systems: Status and Future Directions on Software Defined Radio and Cognitive Radio Standards," IEEE Commun. Mag., vol. 48, no. 9, Sept. 2010, pp. 78-86.
  4. O. Sallent et al., "Cognitive Pilot Channel: A Radio Enabler for Spectrum Awareness and Optimized Radio Resource Management," Proc. ICT-Mobile Summit, Santander, Spain, June 10-12, 2009.
  5. K. Yagyu et al., "Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTEAdvanced," IEICE Trans. Commun., vol. E94-B, no. 12, Dec. 2011, pp. 3335-3345. https://doi.org/10.1587/transcom.E94.B.3335
  6. E. Lo et al., "Adaptive Resource Allocation and Capacity Comparison of Downlink Multiuser MIMO-MC-CDMA and MIMO-OFDMA," IEEE Trans. Wireless Commun., vol. 6, no. 3, Mar. 2007, pp. 1083-1093. https://doi.org/10.1109/TWC.2007.05510
  7. Y. Choi et al., "Joint Resource Allocation for Parallel Multi-radio Access in Heterogeneous Wireless Networks," IEEE Trans. Wireless Commun., vol. 9, no. 11, Nov. 2010, pp. 3324-3329. https://doi.org/10.1109/TWC.2010.11.100045
  8. C.Y. Wong et al., "Multiuser OFDM with Adaptive Subcarrier, Bit, and Power Allocation," IEEE J. Sel. Areas Commun., vol. 17, no. 10, Oct. 1999, pp. 1747-1758. https://doi.org/10.1109/49.793310