Improved soft de-mapping scaling for a constrained MMSE receiver in OFDM MIMO systems

I. Tai Lu, Hui Yuan Teng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Since different spatial streams in MIMO systems experience different SINRs, the soft bits of each spatial stream should be scaled according to its SINR. In this paper, we introduced the idea of soft demapping scaling according to SINR and proposed an improved scaling method using a constrained MMSE approach for OFDM MIMO systems. Based on IEEE 802.11n examples, good system performances are observed in various modulation and coding schemes using the proposed soft demapping scaling while computational efficiency is preserved.

Original languageEnglish (US)
Title of host publication2011 34th IEEE Sarnoff Symposium, SARNOFF 2011
DOIs
StatePublished - Jul 11 2011
Event2011 34th IEEE Sarnoff Symposium, SARNOFF 2011 - Princeton, NJ, United States
Duration: May 3 2011May 4 2011

Publication series

Name2011 34th IEEE Sarnoff Symposium, SARNOFF 2011

Other

Other2011 34th IEEE Sarnoff Symposium, SARNOFF 2011
CountryUnited States
CityPrinceton, NJ
Period5/3/115/4/11

Keywords

  • Constrained MMSE
  • MIMO
  • OFDM
  • Scaling
  • Soft Demapping
  • Soft bit

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications

Fingerprint Dive into the research topics of 'Improved soft de-mapping scaling for a constrained MMSE receiver in OFDM MIMO systems'. Together they form a unique fingerprint.

  • Cite this

    Lu, I. T., & Teng, H. Y. (2011). Improved soft de-mapping scaling for a constrained MMSE receiver in OFDM MIMO systems. In 2011 34th IEEE Sarnoff Symposium, SARNOFF 2011 [5876458] (2011 34th IEEE Sarnoff Symposium, SARNOFF 2011). https://doi.org/10.1109/SARNOF.2011.5876458