MMSE successive interference cancellation scheme for a new adjustable hybrid spread OFDM system

Merouane Debbah*, Bertrand Muquet, Marc de Courville, Markus Muck, Sebastien Simoens, Philippe Loubaton

*Corresponding author for this work

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The effects of uniform spreading in OFDM-CDMA systems is the harmonization at the reception of the Signal to Noise Ratio between the sub-bands which prevents the good performance of Successive Decoding algorithms. This paper proposes a new Hybrid Spread OFDM (SOFDM) transmission scheme in which the spreading of the information is adjustable and not uniform along the carrier (frequency selective). Moreover a MMSE version of the V-BLAST Successive Interference Cancellation algorithm suited for this hybrid modulator is derived. The performance of the combination of SHOFDM and MMSE V-BLAST is shown to both outperform COFDM and conventional and classical iterative detection algorithms for SOFDM in the realistic scenario of the 5GHz HiperLAN/2 system.

Original languageEnglish
Pages (from-to)745-749
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume2
Publication statusPublished - 2000
Externally publishedYes

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