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Highly Scalable Implementation of a Robust MMSE Channel Estimator for OFDM Multi-Standard Environment

Publiceringsår: 2011
Språk: Engelska
Sidor: 311-315
Publikation/Tidskrift/Serie: IEEE Workshop on Signal Processing Systems
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


Abstract in Undetermined

In this paper a VLSI implementation of a highly scalable MMSE (Minimum Mean Square Estimator) is presented with the ultimate goal of demonstrating the potential of MMSE as enabler for multi-standard channel estimation. By selecting an appropriate implementation, a complexity reduction of 98% is achieved when compared to Time-Domain Maximum Likelihood Estimation (TDMLE), whereas low power consumption is accomplished by implementing a low-power-mode. The architecture is capable of performing Least Square (LS) estimation and MMSE compliant with 3GPP LTE (Long Term Evolution), IEEE 802.11n (WLAN), and DVB-H (Digital Video Broadcast for Handheld Devices), The estimator is synthesized using a 65 nm low-leakage high-threshold standard-cell CMOS library. The design occupies an area of 0.169 mm(2), is capable of running upto 250 MHz, providing a throughput of 78 M estimates/second. Simulations under a typical LTE reception show that the implementation dissipates 4.9 mu W per sample.


  • Electrical Engineering, Electronic Engineering, Information Engineering


IEEE Workshop on Signal Processing Systems
  • Radiosystem: Multibase (EU, VÖ/OE)
  • Radio Systems-lup-obsolete
  • Digital ASIC-lup-obsolete
  • Elektronikkonstruktion-lup-obsolete
  • ISSN: 1520-6130

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