A layered-steered space-time coded system with optimal power allocation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Layered Steered Space-Time Codes (LSSTC) is a recently proposed multiple-input multiple-output (MIMO) system that combines the benefits of vertical Bell Labs space-time (VBLAST) scheme, space-time block codes (STBC) and beamforming. We suggest a new downlink scheme employing LSSTC with optimal power allocation, by assuming that the user feeds the BS with the average SNR per VBLAST layer through the uplink feedback channel. The motivation behind proposing such a system is to enhance the error performance by assigning power to the layers in an optimum manner. We refer to the system proposed as the optimum power allocation LSSTC (OPA-LSSTC). We will show that the OPA-LSSTC can provide about a 3 dB gain compared to the equal power allocation case.

Original languageEnglish
Title of host publication2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
Pages397-402
Number of pages6
DOIs
StatePublished - 2010

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'A layered-steered space-time coded system with optimal power allocation'. Together they form a unique fingerprint.

Cite this