Hardware implementation of mapper for Faster-than-Nyquist signaling transmitter
Author
Summary, in English
This paper presents the implementation of the mapper block in a faster-than-Nyquist (FTN) signaling transmitter. The architecture is Look-Up Table (LUT) based and the complexity is reduced to a few adders and a buffer to store intermediate results. Two flavors of the architecture has been designed and evaluated in this article, one, a register based implementation for the buffer and the other using a Random Access Memory
(RAM). The tradeoff between the two is throughput versus area. The register based implementation is fast requiring only one clock cycle to complete the calculation (i.e a read, calculate and write back) for every incoming FTN symbol. However, it becomes
prohibitive when systems with large number of sub-carriers (>64) is considered. The RAM based implementation provides a better solution in terms of area with slightly lower throughput. The mapper has been targetted for both FPGA (Xilinx Virtex-II
Pro) and ASIC (130nm standard cell CMOS) implementations. The design has been successfully tested on the FPGA and its output verified with the reference MATLAB model.
(RAM). The tradeoff between the two is throughput versus area. The register based implementation is fast requiring only one clock cycle to complete the calculation (i.e a read, calculate and write back) for every incoming FTN symbol. However, it becomes
prohibitive when systems with large number of sub-carriers (>64) is considered. The RAM based implementation provides a better solution in terms of area with slightly lower throughput. The mapper has been targetted for both FPGA (Xilinx Virtex-II
Pro) and ASIC (130nm standard cell CMOS) implementations. The design has been successfully tested on the FPGA and its output verified with the reference MATLAB model.
Publishing year
2009
Language
English
Publication/Series
[Host publication title missing]
Document type
Conference paper
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Keywords
- hardware implementation
- faster-than-Nyquist
- multicarrier
- transmitter
Conference name
Norchip Conference, 2009
Conference date
2009-11-16 - 2009-11-17
Conference place
Trondheim, Norway
Status
Published
Project
- EIT_HSWC:Coding Coding, modulation, security and their implementation
Research group
- Telecommunication Theory
- Digital ASIC
- Elektronikkonstruktion
ISBN/ISSN/Other
- ISBN: 978-1-4244-4310-9