Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/5267
Título: Performance analysis of multichannel lattice equalization in coherent underwater communications
Autor: Gomes, João
Silva, A.
Jesus, S. M.
Data: 2007
Editora: IEEE
Citação: J.P. GOMES, A. SILVA and S. JESUS, ``Performance analysis of multichannel lattice equalization in coherent underwater communications'' in Proceedings of OCEANS'07, Vancouver (BC, Canada), pp. 1-8.
Resumo: This work examines the numerical fixed-point performance of a new multichannel lattice RLS filtering algorithm using data from two underwater acoustic communication experiments. The algorithm may be an appealing choice for underwater equalization due to its robust numerical behavior and linear scaling of the computational complexity with filter order. Simple modifications to widely-used methods for carrier/timing synchronization and symbol slicing in transversal equalizers are proposed. Experimental results show that the algorithm is as accurate as the similarly array-based QR-RLS, tolerating word lengths as low as 16-20 bits with minor degradation relative to floating-point benchmarks. These features, coupled with a very modular and regular structure, are highly desirable in energyefficient hardware or embedded implementations.
Peer review: yes
URI: http://hdl.handle.net/10400.1/5267
DOI: http://dx.doi.org/10.1109/OCEANS.2007.4449374
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