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Acquisition of m-Sequences using Soft Sequential Estimation

Yang, L-L. and Hanzo, L. (2004) Acquisition of m-Sequences using Soft Sequential Estimation IEEE Transactions on Communications, 52, (2), pp. 199-204.

Record type: Article

Abstract

Abstract—A novel sequential estimation method is proposed for the initial synchronization of pseudonoise (PN) signals derived from -sequences. This sequential estimation method is designed based on the principle of recursive soft-in/soft-out (SISO) decoding, and we refer to it as the recursive soft sequential estimation (RSSE) acquisition scheme. The RSSE acquisition scheme exhibits a complexity similar to that of a conventional-sequence generator, which increases only linearly with the number of stages in the -sequence generator. Our simulation results also show that the acquisition time of the proposed RSSE acquisition scheme is also linearly dependent on the number of stages in the -sequence generator. Owing to the above properties, the employment of the proposed RSSE acquisition scheme is beneficial for the acquisition of long -sequences. Index Terms—Acquisition, initial synchronization, maximum-likelihood (ML) estimation, -sequence, pseudonoise (PN) signals, recursive decoding, sequential estimation, soft-in/soft-out (SISO) decoding, spread-spectrum signals.

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Published date: 2004
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 260342
URI: http://eprints.soton.ac.uk/id/eprint/260342
PURE UUID: 26829505-b2dc-4fd0-b155-ee63e0e4642b
ORCID for L-L. Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 02 Mar 2005
Last modified: 18 Jul 2017 09:13

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Contributors

Author: L-L. Yang ORCID iD
Author: L. Hanzo

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