Experimental evaluation of MIMO capacity for ultrawideband body-centric wireless propagation channels

Marwa Qaraqe; Qammer H. Abbasi; Akram Alomainy; Erchin Serpedin

doi:10.1109/LAWP.2014.2309982

Experimental evaluation of MIMO capacity for ultrawideband body-centric wireless propagation channels

Marwa Qaraqe, Qammer H. Abbasi, Akram Alomainy, Erchin Serpedin

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In this letter, the capacity of ultrawideband (UWB) multiple-input- multiple-output (MIMO) on-body channels is evaluated. Three on-body channels are investigated - namely, Chest-Waist, Wrist-Waist, and Ankle-Waist channels. The data transmission capacities of each channel are evaluated and presented using the two power allocations schemes - namely, equal power allocation and the waterfilling power allocation. Statistical analysis is performed on the MIMO channel data, and the Rician K -factors of the channels are analyzed. It is found that the waterfilling scheme outperforms the equal power scheme in terms of capacity for all three on-body channels, with an average improvement of 1.2 b/s/Hz for signal-to-noise ratio (SNR) less than 12 dB (percentage improvement of 187% at 0 dB and 100% at 8 dB). However, the performances of the two schemes become comparable as the SNR increases with less than 0.28 b/s/Hz difference (percentage improvement of 3.6%) at an SNR level of 20 dB.

Original language	English
Article number	6756942
Pages (from-to)	495-498
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	13
DOIs	https://doi.org/10.1109/LAWP.2014.2309982
Publication status	Published - 2014
Externally published	Yes

Keywords

Body area networks
channel capacity
multiple-input-multiple- output (MIMO)
on-body channels
ultrawideband

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10.1109/LAWP.2014.2309982

Cite this

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title = "Experimental evaluation of MIMO capacity for ultrawideband body-centric wireless propagation channels",

abstract = "In this letter, the capacity of ultrawideband (UWB) multiple-input- multiple-output (MIMO) on-body channels is evaluated. Three on-body channels are investigated - namely, Chest-Waist, Wrist-Waist, and Ankle-Waist channels. The data transmission capacities of each channel are evaluated and presented using the two power allocations schemes - namely, equal power allocation and the waterfilling power allocation. Statistical analysis is performed on the MIMO channel data, and the Rician K -factors of the channels are analyzed. It is found that the waterfilling scheme outperforms the equal power scheme in terms of capacity for all three on-body channels, with an average improvement of 1.2 b/s/Hz for signal-to-noise ratio (SNR) less than 12 dB (percentage improvement of 187% at 0 dB and 100% at 8 dB). However, the performances of the two schemes become comparable as the SNR increases with less than 0.28 b/s/Hz difference (percentage improvement of 3.6%) at an SNR level of 20 dB.",

keywords = "Body area networks, channel capacity, multiple-input-multiple- output (MIMO), on-body channels, ultrawideband",

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year = "2014",

doi = "10.1109/LAWP.2014.2309982",

language = "English",

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AU - Abbasi, Qammer H.

AU - Alomainy, Akram

AU - Serpedin, Erchin

PY - 2014

Y1 - 2014

N2 - In this letter, the capacity of ultrawideband (UWB) multiple-input- multiple-output (MIMO) on-body channels is evaluated. Three on-body channels are investigated - namely, Chest-Waist, Wrist-Waist, and Ankle-Waist channels. The data transmission capacities of each channel are evaluated and presented using the two power allocations schemes - namely, equal power allocation and the waterfilling power allocation. Statistical analysis is performed on the MIMO channel data, and the Rician K -factors of the channels are analyzed. It is found that the waterfilling scheme outperforms the equal power scheme in terms of capacity for all three on-body channels, with an average improvement of 1.2 b/s/Hz for signal-to-noise ratio (SNR) less than 12 dB (percentage improvement of 187% at 0 dB and 100% at 8 dB). However, the performances of the two schemes become comparable as the SNR increases with less than 0.28 b/s/Hz difference (percentage improvement of 3.6%) at an SNR level of 20 dB.

AB - In this letter, the capacity of ultrawideband (UWB) multiple-input- multiple-output (MIMO) on-body channels is evaluated. Three on-body channels are investigated - namely, Chest-Waist, Wrist-Waist, and Ankle-Waist channels. The data transmission capacities of each channel are evaluated and presented using the two power allocations schemes - namely, equal power allocation and the waterfilling power allocation. Statistical analysis is performed on the MIMO channel data, and the Rician K -factors of the channels are analyzed. It is found that the waterfilling scheme outperforms the equal power scheme in terms of capacity for all three on-body channels, with an average improvement of 1.2 b/s/Hz for signal-to-noise ratio (SNR) less than 12 dB (percentage improvement of 187% at 0 dB and 100% at 8 dB). However, the performances of the two schemes become comparable as the SNR increases with less than 0.28 b/s/Hz difference (percentage improvement of 3.6%) at an SNR level of 20 dB.

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

M1 - 6756942

ER -

Experimental evaluation of MIMO capacity for ultrawideband body-centric wireless propagation channels

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Keywords

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