English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Motivated by recent discoveries of microbial communities that transferelectrons across centimeter-length scales, this paper studies the informationcapacity of bacterial cables via electron transfer, which coexists withmolecular communications, under the assumption of full causal channel stateinformation (CSI). The bacterial cable is modeled as an electron queue thattransfers electrons from the encoder at the electron donor source, whichcontrols the desired input electron intensity, to the decoder at the electronacceptor sink. Clogging due to local ATP saturation along the cable is modeled.A discrete-time scheme is investigated, enabling the computation of anachievable rate. The regime of asymptotically small time-slot duration isanalyzed, and the optimality of binary input distributions is proved, i.e., theencoder transmits at either maximum or minimum intensity, as dictated by thephysical constraints of the cable. A dynamic programming formulation of thecapacity is proposed, and the optimal binary signaling is determined via policyiteration. It is proved that the optimal signaling has smaller intensity thanthat given by the myopic policy, which greedily maximizes the instantaneousinformation rate but neglects its effect on the steady-state cabledistribution. In contrast, the optimal scheme balances the tension betweenachieving high instantaneous information rate, and inducing a favorablesteady-state distribution, such that those states characterized by highinformation rates are visited more frequently, thus revealing the importance ofCSI. This work represents a first contribution towards the design of electronsignaling schemes in complex microbial structures, e.g., bacterial cables andbiofilms, where the tension between maximizing the transfer of information andguaranteeing the well-being of the overall bacterial community arises.

Capacity of electron-based communication over bacterial cables: the full-CSI case