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Computer Science > Information Theory

Title: Frequency-Domain Decoupling for MIMO-GFDM Spatial Multiplexing

Abstract: Generalized frequency division multiplexing (GFDM) is considered a non-orthogonal waveform and known to encounter difficulties when using in the spatial multiplexing mode of multiple-input-multiple-output (MIMO) scenario. In this paper, a class of GFDM prototype filters, under which the GFDM system is free from inter-subcarrier interference, is investigated, enabling frequency-domain decoupling in the processing at the GFDM receiver. An efficient MIMO-GFDM detection method based on depth-first sphere decoding is then proposed with such class of filters. Numerical results confirm a significant reduction in complexity, especially when the number of subcarriers is large, compared with existing methods presented in recent years.
Comments: 4 pages, 4 figures
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1803.06448 [cs.IT]
  (or arXiv:1803.06448v1 [cs.IT] for this version)

Submission history

From: Borching Su [view email]
[v1] Sat, 17 Mar 2018 03:19:22 GMT (282kb)