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arXiv · 1903.07865

Two-Way Molecular Communications

Jong Woo Kwak·H. Birkan Yilmaz·Nariman Farsad·Chan-Byoung Chae·Andrea Goldsmith
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Abstract

For nano-scale communications, there must be cooperation and simultaneous communication between nano devices. To this end, in this paper we investigate two-way (a.k.a. bi-directional) molecular communications between nano devices. If different types of molecules are used for the communication links, the two-way system eliminates the need to consider self-interference. However, in many systems, it is not feasible to use a different type of molecule for each communication link. Thus, we propose a two-way molecular communication system that uses a single type of molecule. We develop a channel model for this system and use it to analyze the proposed system's bit error rate, throughput, and self-interference. Moreover, we propose analog- and digital- self-interference cancellation techniques. The enhancement of link-level performance using these techniques is confirmed with both numerical and analytical results.

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Jong Woo Kwak, H. Birkan Yilmaz, Nariman Farsad, Chan-Byoung Chae, Andrea Goldsmith. 2020-05-05. Two-Way Molecular Communications. https://arxiv.org/abs/1903.07865

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