dorsal/arxiv
View SchemaWireless communications with diffuse waves
| Authors | S. E. Skipetrov |
|---|---|
| Categories | |
| ArXiv ID | physics/0207071 |
| URL | https://arxiv.org/abs/physics/0207071 |
Abstract
Diffuse, multiple-scattered waves can be very efficient for information transfer through disordered media, provided that antenna arrays are used for both transmission and reception of signals. Information capacity C of a communication channel between two identical linear arrays of n equally-spaced antennas, placed in a disordered medium with diffuse scattering, grows linearly with n and can attain considerable values, if antenna spacing a > lambda/2, where lambda is the wavelength. Decrease of a below lambda/2 makes the signals received by different antennas partially correlated, thus introducing redundancy and reducing capacity of the communication system. When the size of antenna arrays is well below lambda/2, the scaling of C with n becomes logarithmic and capacity is low.
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"abstract": "Diffuse, multiple-scattered waves can be very efficient for information\ntransfer through disordered media, provided that antenna arrays are used for\nboth transmission and reception of signals. Information capacity C of a\ncommunication channel between two identical linear arrays of n equally-spaced\nantennas, placed in a disordered medium with diffuse scattering, grows linearly\nwith n and can attain considerable values, if antenna spacing a \u003e lambda/2,\nwhere lambda is the wavelength. Decrease of a below lambda/2 makes the signals\nreceived by different antennas partially correlated, thus introducing\nredundancy and reducing capacity of the communication system. When the size of\nantenna arrays is well below lambda/2, the scaling of C with n becomes\nlogarithmic and capacity is low.",
"arxiv_id": "physics/0207071",
"authors": [
"S. E. Skipetrov"
],
"categories": [
"physics.data-an",
"cond-mat.dis-nn",
"physics.gen-ph"
],
"title": "Wireless communications with diffuse waves",
"url": "https://arxiv.org/abs/physics/0207071"
},
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