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Generalized Rake Receiver for Spreading-IFDMA Systems

  • Wei Wang
  • Ling Wang
  • Zhiqiang He
  • Jiaru Lin
  • Wei Qiu
  • Elena Costa
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4217)

Abstract

Spreading-Interleaved Frequency Division Multiple Access (IFDMA) providing code domain multiplexing for one IFDMA channel shows improved spectrum efficiency and good compatibility with CDMA systems while maintaining advantages of IFDMA systems. A generalized Rake receiver for Spreading-IFDMA is proposed in this paper, which combines jointly de-repetition, equalization, and de-spreading processing. Similar to the conventional CDMA systems, the guard interval in Spreading-IFDMA symbols is not necessary, which means that spectrum efficiency can be further improved over IFDMA systems. With digital simulations and performance analysis, the proposed generalized Rake receiver demonstrates better BER performance, robustness, and lower computational complexity.

Keywords

Channel State Information Minimum Mean Square Error Orthogonal Frequency Division Multiple Access Cyclic Prefix Maximum Ratio Combination 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Wei Wang
    • 1
  • Ling Wang
    • 2
  • Zhiqiang He
    • 1
  • Jiaru Lin
    • 1
  • Wei Qiu
    • 2
  • Elena Costa
    • 3
  1. 1.School of Information EngineeringBeijing University of Posts and TelecommunicationsBeijingP.R. China
  2. 2.Siemens Ltd., ChinaCorporate Technology, Radio Technology and SolutionBeijingP.R. China
  3. 3.Siemens AGCom MN PG NT RI 4MunichGermany

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