Abstract
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.
Original language | English |
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Title of host publication | [Host publication title missing] |
Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
ISBN (Print) | 978-1-4244-4310-9 |
DOIs | |
Publication status | Published - 2009 |
Event | Norchip Conference, 2009 - Trondheim, Norway Duration: 2009 Nov 16 → 2009 Nov 17 Conference number: 27 |
Conference
Conference | Norchip Conference, 2009 |
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Country/Territory | Norway |
City | Trondheim |
Period | 2009/11/16 → 2009/11/17 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering
Free keywords
- hardware implementation
- faster-than-Nyquist
- multicarrier
- transmitter