Comparison of adaptive beamforming and adaptive OSTBC with outdated channel feedback

Youngwook Ko, Cihan Tepedelenlioglu

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

3 Scopus citations

Abstract

For high speed wireless systems adopting adaptive modulation, we compare the achievable performance of adaptive beamforming (A-BF) and adaptive orthogonal space time block coding (A-OSTBC) with outdated channel feedback. In the presence of feedback delay, we optimize the switching thresholds to maximize the average throughput subject to an average BER constraint, and illustrate the effects of feedback delay on the performance of A-BF and A-OSTBC. We observe that while the A-BF scheme outperforms the A-OSTBC scheme with a small feedback delay, the A-OSTBC scheme achieves higher average throughput due to the reduced diversity advantage of A-BF when the feedback delay is large.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
EditorsM.B. Matthews
Pages1232-1236
Number of pages5
Volume1
StatePublished - 2004
EventConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 7 2004Nov 10 2004

Other

OtherConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period11/7/0411/10/04

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Comparison of adaptive beamforming and adaptive OSTBC with outdated channel feedback'. Together they form a unique fingerprint.

  • Cite this

    Ko, Y., & Tepedelenlioglu, C. (2004). Comparison of adaptive beamforming and adaptive OSTBC with outdated channel feedback. In M. B. Matthews (Ed.), Conference Record - Asilomar Conference on Signals, Systems and Computers (Vol. 1, pp. 1232-1236)