Name
Abstract | ||
|---|---|---|
This paper explores the use of multiple communication channels to transmit data at high rates, without physical penetrations, through thick metallic barriers using ultrasound. Two parallel acoustic-electric channels are formed in close proximity utilizing two pairs of coaxially aligned piezoelectric transducers mounted on, and acoustically coupled to, opposing sides of a metal wall. Each channel employs orthogonal frequency division multiplexing (OFDM) which can achieve a high spectral efficiency in frequency selective channels. The two-transmitter-two-receiver MIMO configuration is studied and analytical expressions of channel capacity are determined for the raw channels as well as for several co-channel interference cancellation techniques and they are verified using a Monte-Carlo simulation. It is shown that excessive crosstalk between the channels can lead to marginal increases or decreases in capacity over the single channel when no interference suppression is used. Several interference cancellation structures, including zero forcing, eigenmode transmission, and minimum mean-square error (MMSE) are investigated to mitigate this effect. It is shown that their aggregate capacity may approximately double that of either channel used independently. It is also determined that, in a relatively static MIMO acoustic-electric channel, a minimal complexity adaptive approach such as the Least Mean Squares (LMS) algorithm may be used while achieving a similar capacity to more complex structures. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/ICC.2012.6364479 | Communications |
Keywords | Field | DocType |
MIMO communication,Monte Carlo methods,OFDM modulation,cochannel interference,data communication,interference suppression,least mean squares methods,piezoelectric transducers,ultrasonic applications,MIMO acoustic-electric channel,MIMO system,Monte Carlo simulation,OFDM,acoustic-electric channels,channel capacity,coaxially aligned piezoelectric transducers,cochannel interference cancellation,eigenmode transmission interference cancellation,frequency selective channel,least mean squares algorithm,minimum mean-square error interference cancellation,multichannel data communication,multiple communication channels,orthogonal frequency division multiplexing,thick metallic barriers,two-transmitter-two-receiver system,ultrasound applications,zero forcing interference cancellation | Least mean squares filter,Telecommunications,Computer science,Single antenna interference cancellation,Adjacent-channel interference,Communication channel,MIMO,Real-time computing,Interference (wave propagation),Acoustics,Channel capacity,Orthogonal frequency-division multiplexing | Conference |
ISSN | ISBN | Citations |
1550-3607 E-ISBN : 978-1-4577-2051-2 | 978-1-4577-2051-2 | 2 |
PageRank | References | Authors |
0.41 | 5 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jonathan D. Ashdown | 1 | 37 | 10.66 |
| Gary J. Saulnier | 2 | 99 | 28.72 |
| Tristan J. Lawry | 3 | 6 | 0.99 |
| Kyle R. Wilt | 4 | 5 | 3.71 |
| Henry A. Scarton | 5 | 7 | 1.70 |
| Sam Pascarelle | 6 | 2 | 0.41 |
| John D. Pinezich | 7 | 2 | 0.41 |