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This paper presents a fully programmable frame synchronization architecture of OFDM systems implemented on a multi-core processor platform. By utilizing the guard interval in OFDM signals, the coarse symbol synchronization (CSS) and the fractional carrier frequency offset estimation (CFO) are considered simultaneously. The multi-core processor platform is a 2-Dimension mesh array of SIMD (Single Instruction...
In this paper, we present a novel 128/256-point FFT/ IFFT processor for the applications in IEEE 802.16e based on MIMO-OFDM. The pipeline FFT architecture is proposed to efficiently deal with 1-4 multiple data sequences, and increase the throughput. Furthermore, less hardware complexity is needed in our design compared with conventional individual parallel approach. The signal-to-quantization noise...
A novel FFT processor that can provide parallel-in-parallel-out in normal order is proposed for high throughput required OFDM communication system, such as discrete Fourier transform (DFT)-based channel estimation in IEEE 802.16e. The hardware implementation results show the proposed 1024-point FFT architecture can achieve the throughput rate up to 1.28 G samples/sec and the execution time down to...
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