ASIC Design Implementation of Memory Efficient Infinite Impulse Response UWB Equalizer

• Autorzy: Riaz R. A. , Ahmad S. , Siddiqi F. , Shafiq G. , Iqbal A. , Shuja S. , Jabeen S. , Alvi N. , Yaseen A. , Bhatti K.

Warianty tytułu

PL

Projekt szerokopasmowego ekwalizera NOI w układach ASIC

• Języki publikacji: EN

Abstrakty

EN

Channel Equalization plays an important role in reducing distortion and Inter-Symbol Interference (ISI) to improve the quality of transmission in Ultra-Wide Band (UWB) channel. Many equalization techniques have been proposed in the past but the proposed techniques in this paper describes Infinite Impulse Response (IIR) equalizer architecture which halves the memory requirement of conventional IIR equalizers. This is achieved by exploiting the aperiodically repeated clusters of negative-exponentially decaying segments of Channel Impulse Response (CIR) and hence by providing a single delay- line between the input and output of the equalizer. Further this architecture is realized by implementing on Application Specific Integrated Circuit (ASIC) using Mentor Graphics IC Design tools. Mathematical modeling gives suitable parameters of the IIR Filter, followed by Register Transfer Level (RTL) Design using Very High Descriptive Language (VHDL), ASIC synthesis to TSMC 0.35um process technology, physical modeling using advanced layout techniques. The IIR equalization filter is designed using 8758 Metal Oxide Semi-conductor (MOS) transistors with core cell area of 0.406mm2.

PL

W artykule zaproponowano architekturę ekwalizera NOI, która zmniejsza wymagania pamięci przy transmisji szerokopasmowej w układach ASIC. Zaprezentowano układ w technologii 35 nm z tranzystorami MOS przy powierzchni celki jądra 0.406 mm2.

Słowa kluczowe

EN

quasi-cyclic LDPC codes; protograph LDPC codes; low complexity LDPC codes; vandermonde matrix

PL

układ ASIC; ekwalizer; filtr szerokopasmowy

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 3b
• Strony: 223--227
• Opis fizyczny: Bibliogr. 7 poz., il., schem., tab.

Twórcy

autor

Riaz R. A.

autor

Ahmad S.

autor

Siddiqi F.

autor

Shafiq G.

autor

Iqbal A.

autor

Shuja S.

autor

Jabeen S.

autor

Alvi N.

autor

Yaseen A.

autor

Bhatti K.

• Center for Advanced Studies in Telecommunication Studies (CAST), COMSATS Institute of Information Technology, Park Road, Chak Shehzad Campus, 44000, Islamabad, Pakistan,

Bibliografia

• [1] R. A. Riaz, M. F. U. Butt, S. Chen, and L. Hanzo, Generic zdomain discrete-time transfer function estimation for ultrawideband systems, IEEE Transactions on Electronics, vol. 44, pp. 14911492, 2008.
• [2] R. Dilmaghani, M. Ghavami, and H. Aghvami, Channel estimation technique for ultra-wideband pulse transmission, IEEE Transactions on Electronics, vol. 40, pp. 13481350, 2004.
• [3] A. F. Molisch, D. Cassioli, M. Z.Win, A comprehensive standardized model for ultrawideband propagation channels, IEEE Transactions on Antennas and Propogation, vol. 54, pp. 31513166, 2006.
• [4] A. A. H. Ab-Rahman, I. Kamisian, and A. Z. Shaameri, Asic modeling and simulation of adaptive fir filter, International Conference on Electronic Design, 2008.
• [5] W. Wolf, Modern VLSI Design. New Jersey: Prentice Hall, 2008.
• [6] H.G. Bakeer, O. Shaheen, H.M. Eissa and M. Dessouky, Analog, Digital and Mixed-Signal Design Flows, 2nd International Design and Test Workshop, pp.247-252, Dec. 2007.
• [7] T.K Schneider, A.J. Schwab and J.H. Aylor ”A full custom VLSI design methodology using Mentor Graphics design software in an educational environs,” Proc. Sixth IEEE International ASIC Conference and Exhibit, pp.305-308, Oct 1993.