Low complexity MMSE based channel estimation algorithm for the IEEE802.16d WMAN standard

Hosseinnezhad, M.; Salahi, Ahmad

doi:10.1109/istel.2008.4651310

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…Different design techniques like OFDM and single-carrier frequency-domain equalization (SC-FDE), time-domain decision feedback equalization (DFE), and sphere decoder (SD) techniques have been considered and compared in the same work. The performances of uncoded IEEE 802.16d have also been investigated in [19] too. The effects of channel estimation on the system performance have been investigated in this paper and some novel channel estimation technique hasalso been proposed.…”

Section: Related Workmentioning

confidence: 99%

Performance Comparison of Coded and Uncoded IEEE 802.16D Systems under Stanford University Interim (SUI)Channels

Siddique¹,

Arifuzzman²,

Islam³

et al. 2014

IJCNC

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Worldwide Interoperability for Microwave Access (WiMax), standardized asIEEE 802.16d is a popular technology for broadband wireless communication system. Orthogonal Frequency Division Multiplexing (OFDM) is the core of this technology.OFDMreduces Inter-symbol Interference (ISI) and hence improves system performance (i.e., Bit Error Rate (BER)). To improve system performance further error correction coding schemes have been included in WiMax. It is widely accepted thata coded system outperforms an uncodedsystem. But, the performance improvement of a coded system depends on the channel conditions. In this paper, we investigated and compared the performances of a coded and an uncoded WiMaxsystem under a practical channel model called Stanford University Interim (SUI). Different modulation schemes namely BPSK, QPSK, 16-QAM, and 64-QAM have been considered in this work. It is shown that the selection of codedoruncoded WiMaxsystem should depend on the channel condition as well as on the modulation used. It is also shown that anuncoded system outperforms a coded system under some channel conditions.

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Section: Related Workmentioning

confidence: 99%