Autor: Georgoulakis, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Blind Estimation of Linear and Nonlinear Sparse Channels
Autorzy:: Georgoulakis, K.
Powiązania:: https://bibliotekanauki.pl/articles/307846.pdf
Data publikacji:: 2013
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: blind estimation and equalization
clustering techniques
sparse zero pad channels
Opis:: This paper presents a Clustering Based Blind Channel Estimator for a special case of sparse channels - the zero pad channels. The proposed algorithm uses an unsupervised clustering technique for the estimation of data clusters. Clusters labelling is performed by a Hidden Markov Model of the observation sequence appropriately modified to exploit channel sparsity. The algorithm achieves a substantial complexity reduction compared to the fully evaluated technique. The proposed algorithm is used in conjunction with a Parallel Trellis Viterbi Algorithm for data detection and simulation results show that the overall scheme exhibits the reduced complexity benefits without performance reduction.
Źródło:: Journal of Telecommunications and Information Technology; 2013, 1; 65-71
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Pipelined architectures for the frequency domain linear equalizer
Autorzy:: Glentis, G. O.
Georgoulakis, K.
Powiązania:: https://bibliotekanauki.pl/articles/908377.pdf
Data publikacji:: 2006
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: dziedzina częstotliwości
przetwarzanie potokowe
urządzenie wyrównawcze
adaptive equalization
frequency domain LMS
pipelined implementation
Opis:: In this paper, novel pipelined architectures for the implementation of the frequency domain linear equalizer are presented. The Frequency Domain (FD) LMS algorithm is utilized for the adaptation of equalizer coefficients. The pipelining of the FD LMS linear equalizer is achieved by introducing an amount of time delay into the original adaptive scheme, and following proper delay retiming. Simulation results are presented that illustrate the performance of the effect of the time delay introduced into the adaptation algorithm. The proposed architectures for efficient pipelining of the FD LMS linear equalization algorithm are suitable for implementation on special purpose hardware by means of the ASIC, ASIP or FPGA VLSI processors.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2006, 16, 4; 525-535
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja