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8. BER Analysis of Physical-Layer Network Coding in the AWGN Channel With Burst Pulses

Author

Weixiao Meng, Qi-Yue Yu, Cao Fengfeng, and Wei Xiang

Subjects
Physical layer network coding, General Computer Science, Computer science, 050801 communication & media studies, Throughput, 02 engineering and technology, Data_CODINGANDINFORMATIONTHEORY, symbols.namesake, 0508 media and communications, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, General Materials Science, business.industry, 05 social sciences, General Engineering, 020206 networking & telecommunications, Reed-Solomon (RS) codes, bit error rate (BER), Additive white Gaussian noise, burst pulse, Gaussian noise, Linear network coding, Bit error rate, symbols, Physical-layer network coding (PNC), lcsh:Electrical engineering. Electronics. Nuclear engineering, Telecommunications, business, lcsh:TK1-9971, Communication channel, Degradation (telecommunications)
Abstract

The essential idea behind physical-layer network coding (PNC) is to superimpose signals so as to improve throughput. Current studies focus mainly on PNC over the AWGN or Rayleigh channels without consideration of burst pulses. This paper aims to evaluate the bit error rate (BER) performance of classical PNC, over a mixed channel that considers the combined effects of Gaussian noise and burst pulses. Besides, this paper explores the use of the Reed-Solomon (RS) codes to improve the BER performance of PNC over the mixed channel. Simulation results show that burst pulses deteriorate the BER significantly, and the RS codes are able to compensate for substantial BER performance degradation.

Published
2016

10. Low temperature route synthesis of SiC–Al2O3 hetero-structural nanofibers.

Author

Dai, Xiao, Wang, Hao, Cao, Fengfeng, Yi, Qinghua, Dong, Chao, Cong, Shan, Wang, Yun, Song, Pingyuan, Zhai, Pengfei, and Zou, Guifu

Subjects
NANOSTRUCTURED materials synthesis, NANOFIBERS, LOW temperature engineering, MICROSTRUCTURE, ATOMIC layer epitaxial growth, ANNEALING of metals
Abstract

SiC–Al2O3 hetero-structural nanofibers have been synthesized by the chemical solution approach at 200 ° C. The diameters of nanofibers are in the range of 60–100 nm while the lengths are from tens of micrometers to hundreds of micrometers. The microstructural analysis shows that the fibers possess a like-epitaxial relationship between (104) of hexagonal Al2O3 and (111) of cubic SiC. Additionally, the optical investigation of the nanofibers suggests there are some defects in the low annealing temperature synthesized SiC–Al2O3 nanofibers. [ABSTRACT FROM AUTHOR]

Published
2014
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