DocumentCode :
1988135
Title :
A reconfigurable pipelined transmultiplexer architecture
Author :
Fernandes, P.J. ; Jamali, M.M. ; Kwatra, S.C. ; Budinger, J.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
fYear :
1991
fDate :
14-17 Apr 1991
Firstpage :
1961
Abstract :
A reconfigurable transmultiplexer that is capable of on-board demultiplexing of a varying number of single channel per carrier frequency division multiple access (FDMA) channels with varying bit rates is presented. The multiplexing algorithm selected for demultiplexing the FDMA channels is the polyphase FFT (fast Fourier transform) method, which requires a bank of filters followed by an FFT operation. A reconfigurable shared filter bank and reconfigurable pipelined FFT architecture are designed to implement the bank of filters and FFT operations for two different cases. The architecture is suitable for satellite on-board processing as it is reconfigurable and modular and can perform its processing in real time without large buffers. The architecture is illustrated specifically for demultiplexing 800 channels, at 64 kbps or a mix of 400 channels at 64 kbps and 12 channels at 2.048 Mbps or 24 channels at 2.048 Mbps
Keywords :
fast Fourier transforms; frequency division multiple access; pipeline processing; satellite relay systems; transmultiplexing; 2.048 Mbit/s; 64 kbit/s; FDMA channels; demultiplexing; fast Fourier transform; frequency division multiple access; multiplexing algorithm; polyphase FFT; real-time processing; reconfigurable pipelined transmultiplexer architecture; reconfigurable shared filter bank; satellite on-board processing; single channel per carrier; varying bit rates; Demodulation; Demultiplexing; Filter bank; Frequency division multiaccess; Satellite communication; Satellite ground stations; Speech; Switches; Time division multiple access; Time division multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
ISSN :
1520-6149
Print_ISBN :
0-7803-0003-3
Type :
conf
DOI :
10.1109/ICASSP.1991.150774
Filename :
150774
Link To Document :
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