DSP implementation of narrowband interference cancellation algorithms in MB-OFDM based ultra-wideband communication system

Jeng, Li‐Der; Meng, Fanwei; Yang, Chia-Cheng

doi:10.1109/ispacs.2009.5383879

Cited by 2 publications

(1 citation statement)

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“…In [4], an optimization for FFT operations is implemented inside an iPROVE FPGA board and the results are compared with Carmel DSP and TMS320C62X. In [5], narrowband interference cancellation algorithms applied to multiband OFDM ultra-wideband systems are implemented in TMS320C6713 DSP and some implementation parameters are discussed.…”

Section: Orthogonal Frequency Division Multiplexing (Ofdm) Is a Transmentioning

confidence: 99%

OFDM System Implementation in DSP Platform TMS320C6678

Fukuda¹,

Abrão²

2016

JCC

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The Orthogonal Frequency Division Multiplexing (OFDM) system is already used in commercial applications and is capable to deal with Intersymbolic Interference (ISI) caused by multipath channels. This system gained popularity after the application of the Fast Fourier Transform (FFT) and its inverse (IFFT) to modulate the signal in many subcarriers. This paper discusses implementation aspects of an OFDM system; such system is characterized by considering real constraints, including the memory consumption and the processing time. The OFDM modulator, channel samples and OFDM demodulator were implemented entirely in the DSP TMS320C6678 platform. As a proof-of-concept, a 256-QAM OFDM BER performance is compared with theoretical values. Moreover, the memory size is not demanding, consuming very few resources. It was observed a very high number of DSP clock cycles needed for the OFDM signal modulation, corresponding to more than 4 times the number used in demodulating the signal.

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Section: Orthogonal Frequency Division Multiplexing (Ofdm) Is a Transmentioning

confidence: 99%