Event Details
A Joint Timing and Frequency Synchronization and Channel Estimation for OFDM Systems
Presenter: Hlaing Minn
Supervisor:
Date: Tue, October 30, 2001
Time: 10:30:00 - 11:30:00
Place: EOW 230
ABSTRACT
Abstract:
Orthogonal Frequency Division Multiplexing (OFDM) has achieved a wider acceptance in many applications such as ADSL, DAB, DVB, IEEE802.11a, HiperLAN/2, MMAC, IEEE802.16a/b. Main research issues in OFDM include synchronization and channel estimation. Generally, timing synchronization, frequency synchronization and channel estimation are addressed separately. Since perfect synchronization cannot always be achieved in practice and errors in one task can affect the other, the performance of separate methods would not reflect the actual situations. Hence, it is much desirable to address the synchronization and channel estimation tasks together since it will reflect a more practical situation. Moreover, the information from one task can be utilized in another task to achieve further improvement. In this light, we will address a joint timing and frequency synchronization and channel estimation. A two-stage realizable Maximum likelihood (ML) based scheme will be presented. A means of complexity reduction by an adaptive scheme will also be presented.
For further information, please contact
Hlaing Minn
Ph.D. Candidate
Department of Electrical and Computer Engineering
University of Victoria
PO Box 3055 STN CSC
Victoria, BC
V8W 3P6
Tel: (250) 721-6043
E-mail: hminn@ece.uvic.ca