July Updates

(1) I have two papers in ACM NanoCom this year. With Bao Tang and Bayram Akdeniz,

Malcolm Egan, Bao Quoc Tang and Bayram Akdeniz, “On the Input-Output Relationship for Molecular Communications in General First-Order Chemical Reaction-Diffusion Systems,” accepted for publication in ACM NanoCom, (2019).

and with Valeria Loscri, Ido Nevat, Marco Di Renzo and Trung Duong,

Malcolm Egan, Valeria Loscri, Ido Nevat, Trung Q. Duong and Marco Di Renzo, “Estimation and Optimization for Molecular Communications with a Coexistence Constraint,” accepted for publication in ACM NanoCom, (2019).

(2) During 8-10th July, I will be visiting Laurent Clavier at IMT Lille-Douai and will present a seminar:

Title: Decoupling Communication and Control in Biochemical Systems: An Information Theoretic Perspective

Abstract: In many natural and synthetic biochemical systems, information is exchanged from one component to another via a chemical signal. For example, quorum sensing in bacteria colonies exploits the exchange of autoinducers in order to establish consensus. While it is highly desirable to coordinate via such information exchange, it comes at the cost of producing information carrying molecules. In complex biochemical systems, these molecules may interact chemically or physically with other components controlling the emitting system or with other biochemical systems in the environment. A basic question is therefore what kinds of constraints must be imposed on the communication mechanism such that normal regulation still functions; that is, the systems can coexist.

In this talk, I will formalise this problem in the context of systems modelled via stochastic chemical reaction systems. By developing a new coexistence constraint on communication imposed by the environment, I will then establish information theoretic limits on the quantity of information that can be sent. The constraint provides a means of abstracting how complex biological control mechanisms interact with the communication mechanism. Under the coexistence constraint, the number of bits of information that can be sent scales sublinearly with the number of transmitted symbols. This implies that significantly less information can be transmitted than in classical communication systems.

(3) On Thursday 11th July, I will be visiting in the group of Cedric Adjih in INRIA Saclay.