Preamble-based cell identification for cellular OFDM systems

Preamble-based cell identification (CID) schemes are derived for orthogonal frequency division multiplexing (OFDM) systems. They include the optimal schemes based on the Bayesian and the maximum likelihood (ML) approaches, a suboptimal scheme that is a simplification of the ML scheme, and a differential decoding-based scheme that does not require any channel information. The complexities and performances of these CID schemes are examined and compared to existing schemes. The differential decoding-based scheme performs like the suboptimal scheme for most practical channels of interest and outperforms existing schemes, yet it is simpler to implement than the others.

• Type: Journal
• Year: 2008
• Where: TWC
• Authors: Wooseok Nam, Yong Hoon Lee
• Keywords: Orthogonal Frequency Division, Preamble-based Cell Identification, Suboptimal Scheme, TWC 2008