Preamble-based cell identification for cellular OFDM systems

• Published in: IEEE transactions on wireless communications Vol. 7; no. 12; pp. 5263 - 5267
• Main Authors: Wooseok Nam, Lee, Y.H.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.12.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Bayesian analysis; Bayesian methods; Cell identification; Cellular; Channels; Coding, codes; Complexity; Equipments and installations; Exact sciences and technology; Frequency division multiplexing; Frequency synchronization; IEEE 802.16; Information, signal and communications theory; Maximum likelihood decoding; Mobile radiocommunication systems; Multiplexing; OFDM; Optimization; Orthogonal Frequency Division Multiplexing; Performance evaluation; preamble; Radiocommunications; Research and development; Signal and communications theory; Signal processing; Simplification; Telecommunications; Telecommunications and information theory; Wireless communication; Performance evaluation; Mobile radiocommunication; preamble; IEEE 802.16; Wireless telecommunication; Cell network; Decoding; Implementation; Cell identification; Orthogonal frequency division multiplexing; Maximum likelihood; Optimal planning; Differential method
• ISSN: 1536-1276; 1558-2248
• DOI: 10.1109/T-WC.2008.071426

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.