https://scholars.lib.ntu.edu.tw/handle/123456789/625289
標題: | Channel codes for reliability enhancement in molecular communication | 作者: | PO-JEN SHIH Lee C.-H PING-CHENG YEH KWANG-CHENG CHEN |
關鍵字: | channel coding; diffusion; inter-symbol interference (ISI); Molecular communications | 公開日期: | 2013 | 卷: | 31 | 期: | 12 | 起(迄)頁: | 857-867 | 來源出版物: | IEEE Journal on Selected Areas in Communications | 摘要: | Molecular communications emerges as a promising scheme for communications between nanoscale devices. In diffusion-based molecular communications, molecules as information symbols diffusing in the fluid environments suffer from molecule crossovers, i.e., the arriving order of molecules is different from their transmission order, leading to intersymbol interference (ISI). In this paper, we introduce a new family of channel codes, called ISI-free codes, which improve the communication reliability while keeping the decoding complexity fairly low in the diffusion environment modeled by the Brownian motion. We propose general encoding/decoding schemes for the ISI-free codes, working upon the modulation schemes of transmitting a fixed number of identical molecules at a time. In addition, the bit error rate (BER) approximation function of the ISI-free codes is derived mathematically as an analytical tool to decide key factors in the BER performance. Compared with the uncoded systems, the proposed ISI-free codes offer good performance with reasonably low complexity for diffusion-based molecular communication systems. © 2013 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893065736&doi=10.1109%2fJSAC.2013.SUP2.12130018&partnerID=40&md5=7f7ee752b876e93c25a17dd349bc94ce https://scholars.lib.ntu.edu.tw/handle/123456789/625289 |
ISSN: | 07338716 | DOI: | 10.1109/JSAC.2013.SUP2.12130018 | SDG/關鍵字: | Approximation function; Communication reliabilities; Decoding complexity; Information symbol; Intersymbol interferences (ISI); Molecular communication; Reliability enhancement; Transmission order; Channel coding; Communication; Diffusion; Error statistics; Molecules; Intersymbol interference |
顯示於: | 醫學工程學研究所 |
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