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29 March 2024 |
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Article overview
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Molecular Signal Modeling of a Partially Counting Absorbing Spherical Receiver | Bayram Cevdet Akdeniz
; Nafi Ahmet Turgut
; H. Birkan Yilmaz
; Chan-Byoung Chae
; Tuna Tugcu
; Ali Emre Pusane
; | Date: |
20 Dec 2017 | Abstract: | To communicate at the nanoscale, researchers have proposed molecular
communication as an energy-efficient solution. The drawback to this solution is
that the histogram of the molecules’ hitting times, which constitute the
molecular signal at the receiver, has a heavy tail. Reducing the effects of
this heavy tail, inter-symbol interference (ISI), has been the focus of most
prior research. In this paper, a novel way of decreasing the ISI by defining a
counting region on the spherical receiver’s surface facing towards the
transmitter node is proposed. The beneficial effect comes from the fact that
the molecules received from the back lobe of the receiver are more likely to be
coming through longer paths that contribute to ISI. In order to justify this
idea, the joint distribution of the arrival molecules with respect to angle and
time is derived. Using this distribution, the channel model function is
approximated for the proposed system, i.e., the partially counting absorbing
spherical receiver. After validating the channel model function, the
characteristics of the molecular signal are investigated and improved
performance is presented. Moreover, the optimal counting region in terms of bit
error rate is found analytically. | Source: | arXiv, 1712.7435 | Services: | Forum | Review | PDF | Favorites |
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