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학술지 An Application of MB-OFDM UWB Technology for Wireless Speaker Systems
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저자
김도훈, 강규민, 이충용
발행일
201211
출처
IEEE Transactions on Consumer Electronics, v.58 no.4, pp.1169-1175
ISSN
0098-3063
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TCE.2012.6414982
협약과제
12PR3900, 10GHz 이하 대역에서 Dynamic Spectrum Access를 위한 상호 공존성(Coexistence) 기준 연구, 정병장
초록
We propose an application of multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) technology for wireless speaker systems which offer superior high-fidelity audio quality. The proposed scheme applies a (255,171) Reed-Solomon (RS) code and a 1/2 punctured convolutional code to the payload data in order to improve the receiver sensitivity without decreasing the transmission data rate. Because the RS block size is very small compared to the overall modem area, both the required additional hardware cost and the increase in the overall modem size are negligible. Simulation results show that the proposed scheme improves the signal-to-noise ratio by 1.5 dB with a packet error rate of 10-3 in an additive white Gaussian noise (AWGN) channel when compared to a conventional scheme. The proposed scheme is also implemented using Verilog hardware description language and an emulation test is conducted on a field-programmable gate array (FPGA) test board © 2011 IEEE.
키워드
Multi-band orthogonal frequency divisionmultiplexing (MB-OFDM), packet error rate (PER), puncturer, receiver sensitivity, Reed-Solomon(RS)
KSP 제안 키워드
Additive white Gaussian noise (AWGN) channel, Audio quality, Block size, Field Programmable Gate Arrays(FPGA), High-fidelity, MB-OFDM UWB, Orthogonal frequency division Multiplexing(OFDM), Packet error rate, Punctured Convolutional Code, Reed Solomon(RS), Signal noise ratio(SNR)