Wireless LAN White Papers
Blind Channel Estimation for OFDM Systems Based on Non-Redundant Linear Precoding
Overview This paper considers a novel approach that can be applied on a single transmit/receive antenna OFDM system, to increase multipath diversity, and at the same time, enable blind channel estimation at the receiver. A non-redundant linear precoder is applied on each pair of blocks before they enter the OFDM system. It is composed of unitary sub-matrices, which spread each symbol onto multiple sub-carriers, thus enabling robustness to subcarrier nulls. Due to the introduced structure, the channel can be estimated at the receiver based on cross-correlation operations, without increasing transmission power.
| Publisher | Drexel University | File Format | |
|---|---|---|---|
| Date Published | October 2003 | Downloads | 1 |
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful?
White Paper RSS
Download
Register
