Body Area Networks using IEEE 802.15.6: Implementing the by Marco Hernandez, Ryu Miura, Lorenzo Mucchi

By Marco Hernandez, Ryu Miura, Lorenzo Mucchi

The marketplace of wearable instant scientific sensors is experiencing a speedy development and the linked telecommunications providers for the healthcare quarter are forecast to extra raise within the subsequent years. scientific physique quarter networks (MBANs) enable the mobility of sufferers and clinical group of workers by means of facilitating the distant tracking of sufferers being affected by power or dicy illnesses. presently, MBANs are being brought in unlicensed frequency bands, the place the danger of mutual interference with different digital units radiating within the comparable band might be excessive. hence, coexistence is an argument on which the learn scientists have committed a lot attempt. extremely wideband (UWB) indications supply many merits to MBANs, and a few gains of this know-how might be exploited for powerful implementation of providers. UWB can assist in different elements, like spectrum potency, strength intake and coexistence. This ebook discusses the most elements, and, specifically, the coexistence, of MBANs in accordance with the IEEE 802.15.6 general utilizing UWB actual layer.

  • A exhaustive description of physique quarter networks utilizing IEEE802.15.4 applied sciences, supplying an in-depth figuring out of the way the overall procedure works
  • Provides realizing and perception at the use of extremely extensive band applied sciences for the actual layer of physique region networks; low energy intake and coexistence are investigated
  • Includes prone, methodologies and effects concerning link-level and system-level reviews of physique quarter networks

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Extra info for Body Area Networks using IEEE 802.15.6: Implementing the ultra wide band physical layer

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D. Heyn, C. Desset, G. V. Poucke, J. 4a, in: IEEE ISSCC Digital Technical Papers, February 2007, pp. 120–121. [18] T. Norimatsu, R. Fujiwara, M. Kokubo, M. Miyazaki, A. Maeki, Y. Ogata, S. Kobayashi, N. Koshizuka, K. Sakamura, A UWB-IR transmitter with digitally controlled pulse generator, IEEE J. Solid-State Circuits 42 (2007) 1300–1309. C. P. Mercier, M. L. Stone, J. B. G. P. Chandrakasan, A Pulsed UWB Receiver SoC for Insect Motion Control, ISSCC Digital Technical Papers, February 2009. D. Wentzloff, R.

However, when such power decreases beyond those threshold values, the BER suffer a significant degradation due to the interference. 05 0 −10 −10 −15 −20 −30 −20 −40 −25 PI dBm −50 S dBm Fig. 6 UWB receiver in default mode, with 10 FM-UWB interference signals in band 6. BER with 2 4f−interferers in band 1 −3 x 10 15 BER 10 5 0 −5 −5 −10 −10 −20 −30 −15 −40 PI dBm −20 −50 S dBm Fig. 4f interference signals in band 1. 6 UWB devices in default mode will not be affected by at least 10 FM-UWB interference devices in the same BAN during the contention period.

Frequency modulation has the unique property that the RF bandwidth is not only related to the bandwidth of the modulating signal, but also to the FM modulation index β that can be chosen freely. According to the Carson’s rule, the bandwidth of an FM signal is given by WFM ≈ 2(β + 1) f m (29) where f m is the largest frequency component present in the CP-GFSK signal and β is the FM modulation index. In case of β 1 (wideband FM), the FM signal can occupy any required bandwidth. Therefore, FM-UWB implements processing gain by increasing the transmission bandwidth of a message signal, similar to a spread-spectrum system.

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