Capacity improvement for uplink OFDMA

KIVANÇ TÜRELİ D., Tureli U., Liu H.

The Thirty-Sixth Asilomar Conference on Signals Systems and Computers, Pacific Groove, CA, United States Of America, 3 - 06 November 2002, vol.2, pp.1809-1812, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2
  • City: Pacific Groove, CA
  • Country: United States Of America
  • Page Numbers: pp.1809-1812
  • Yıldız Technical University Affiliated: Yes

Abstract

This paper studies the problem of receiver design in uplink communications in an OFDMA system. The aim is to provide a receiver design to support efficient resource allocation among multiple users. We look at blind subspace based estimation methods for synchronization and interference cancellation to improve OFDMA uplink. This paper investigates the performance of the resulting receiver under the conditions of frequency offset, and multipath fading. The issues of frequency offset synchronization as well as channel estimation are addressed.