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 - 2011
Event2011 34th IEEE Sarnoff Symposium, SARNOFF 2011 - Princeton, NJ, United States
Duration: May 3 2011May 4 2011

Other

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

Fingerprint

MIMO systems
Orthogonal frequency division multiplexing
Computational efficiency
Modulation

Keywords

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

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications

Cite this

Improved soft de-mapping scaling for a constrained MMSE receiver in OFDM MIMO systems. / Lu, I-Tai; Teng, Hui Yuan.

2011 34th IEEE Sarnoff Symposium, SARNOFF 2011. 2011. 5876458.

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

Lu, I-T & Teng, HY 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, Princeton, NJ, United States, 5/3/11. https://doi.org/10.1109/SARNOF.2011.5876458
Lu, I-Tai ; Teng, Hui Yuan. / Improved soft de-mapping scaling for a constrained MMSE receiver in OFDM MIMO systems. 2011 34th IEEE Sarnoff Symposium, SARNOFF 2011. 2011.
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