80-Mb/s QPSK and 72-Mb/s 64-QAM flexible and scalable digital OFDM transceiver ASICs for wireless local area networks in the 5-GHz band - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Journal of Solid-State Circuits Année : 2001

80-Mb/s QPSK and 72-Mb/s 64-QAM flexible and scalable digital OFDM transceiver ASICs for wireless local area networks in the 5-GHz band

W. Eberle
  • Fonction : Auteur
V. Derudder
  • Fonction : Auteur
G. Vanwijnsberghe
  • Fonction : Auteur
M. Vergara
  • Fonction : Auteur
L. van Der Perre
  • Fonction : Auteur
M.G.E. Engels
  • Fonction : Auteur
I. Bolsens
  • Fonction : Auteur
H. de Man
  • Fonction : Auteur

Résumé

With the advent of mobile communications, voice telecommunications became wireless. Future applications, however, target multimedia, messaging, and high-speed Internet access, all expressing the need for a broadband high-speed wireless access technique. Both the domestic multimedia and the wireless local area network (WLANs) business markets are addressed. Established systems deliver 2-11 Mb/s based on spectrally inefficient spread-spectrum techniques, where scalability has reached a limit. The next generation of modems requires spectrally more efficient low-power and highly integrated solutions. We describe here the design of two digital baseband orthogonal frequency division multiplex (OFDM) signal processing ASICs, implementing respectively a quaternary phase-shift keying (QPSK)-based 80-Mb/s and a 64 quadrature amplitude modulation (QAM)-based 72-Mb/s digital inner transceiver. The latter partially matches the Hiperlan/2 and IEEE 802.11a standards. Joint development of signal processing algorithms and architectures along with on-chip data transfer, control, and partitioning leads to a low-power, yet flexible and scalable implementation. Both ASICs were designed in a unique object-oriented C++ design flow starting from algorithm level. The ASICs were successfully tested in a 5-GHz testbed both for file data transfer and web-cam multimedia transmission
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Dates et versions

hal-00178526 , version 1 (11-10-2007)

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Citer

W. Eberle, V. Derudder, G. Vanwijnsberghe, Luc Deneire, M. Vergara, et al.. 80-Mb/s QPSK and 72-Mb/s 64-QAM flexible and scalable digital OFDM transceiver ASICs for wireless local area networks in the 5-GHz band. IEEE Journal of Solid-State Circuits, 2001, 36 (11), pp.1829-1838. ⟨10.1109/4.962306⟩. ⟨hal-00178526⟩
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