期刊
IEEE COMMUNICATIONS LETTERS
卷 17, 期 11, 页码 2156-2159出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2013.100713.131727
关键词
Nanonetwork; diffusion-based molecular communication channel; maximum likelihood estimation; channel delay; Cramer-Rao lower bound
Synchronization is an essential feature of any communication system. Due to the very low throughput of molecular communications systems, blind synchronization is preferred in order to reduce communications overhead. In this paper, we present the first blind synchronization algorithm for the diffusion-based molecular communication channel. Considering a diffusion-based physical channel model, we use the non-decision directed maximum likelihood criterion for estimating the channel delay. We then derive the Cramer-Rao lower bound and evaluate the performance of the proposed synchronization algorithm by investigating its mean square error.
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