Abstract
Orthogonal Frequency Division Multiplexing (OFDM) is exceptionally favored system for rapid information transmission over remote channel. In this paper, VHDL implementation of low power turbo-coded OFDM (TCOFDM) Physical layer architecture is presented. In this architecture a low power memory-less pipelined FFT processor and Log-map turbo encoder/decoders are used to provide high throughput and lower complexity. Log-map turbo decoder provides high speed with good error correction capacity, while FFT/IFFT processor with single delay feedback (SDF) memory less architecture provide improved area and power efficiency. Proposed TCOFDM system is implemented using Xilinx ISE Design suite in the simulation results shows that the proposed scheme is having low power, high speed, high throughput and smaller area in comparison to other schemes.
Highlights
Because of quick development of remote and sight and sound correspondence, there is an enormous requirement for fast information rate transmission
VHDL implementation of SOVA based and LogMap based turbo coder have already been reported in [6,7,8,9] FFT processors are the key of Orthogonal Frequency Division Multiplexing (OFDM) physical layer system
In this paper, VHDL implementation of low power Turbo coded OFDM physical layer with efficient FFT/IFFT processor is presented. In this proposed work Turbo coder with Map algorithm and singlepath delay feedback (SDF) based memory less FFT processor are used to improve the performance of OFDM physical layer
Summary
Because of quick development of remote and sight and sound correspondence, there is an enormous requirement for fast information rate transmission. To enhance the speed and greatest measure of information transmission Orthogonal Frequency Division Multiplexing (OFDM) framework have been produced These systems likewise require quick execution of countless, which can bring about high power utilization. Since the use of turbo coder with FFT provide high throughput a software (matlab) based scheme for TCOFDM physical layer has been reported in [13]. In this paper, VHDL implementation of low power Turbo coded OFDM physical layer with efficient FFT/IFFT processor is presented. In this proposed work Turbo coder with Map algorithm and SDF based memory less FFT processor are used to improve the performance of OFDM physical layer.
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