doc.: IEEE 802.15-09-0054- 00-0006 Submiss ion January, 2009 Slide 1 Project: Project: IEEE P802.15 Working Group for IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Wireless Personal Area Networks (WPANs) Submission Title: FM-UWB for Wearable BAN Date Submitted: 20 January, 2009 Source: John F.M. Gerrits & John R. Farserotu CSEM Systems Engineering Jaquet Droz 1, CH2002 Neuchatel, Switzerland Voice: +41 32 720 56 52, FAX: +41 32 720 57 20, E-Mail: [email protected]Re: This document is CSEM’s response to the Call For Proposal from the IEEE P802.15 Task Group 6 on BAN. Abstract: This document presents FM-UWB: a constant envelope LDR UWB air interface for short range BAN applications. Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.
Transcript
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 1
Project:Project: IEEE P802.15 Working Group for IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)Wireless Personal Area Networks (WPANs)
Submission Title: FM-UWB for Wearable BANDate Submitted: 20 January, 2009
Source: John F.M. Gerrits & John R. FarserotuCSEM Systems EngineeringJaquet Droz 1, CH2002 Neuchatel, SwitzerlandVoice: +41 32 720 56 52, FAX: +41 32 720 57 20, E-Mail: [email protected]
Re: This document is CSEM’s response to the Call For Proposal from the IEEE P802.15 Task Group 6 on BAN.
Abstract: This document presents FM-UWB: a constant envelope LDR UWB air interface for short range BAN applications.
Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to
change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 2
FM-UWB Alliance
CSEM, Neuchâtel, SwitzerlandJohn F.M. Gerrits, Dr. John R. Farserotu, Jérôme Rousselot
NXP Semiconductors, Eindhoven, The NetherlandsGerrit van Veenendaal
ACORDE TECHNOLOGIES S.A., Santander, SpainDr. Manuel Lobeira
TU Delft, Delft, The NetherlandsProf. John R. Long
GPdB = 30 dB @ R = 250 kbpsGPdB = 39 dB @ R = 31.25 kbps
Only noise/interference in the subcarrier banwidth is taken into account.This bandwidth reduction after the wideband FM demodulator yieldsreal processing gain:
Processing gain increases for lower bit rates:
Processing gain mitigates • Multiple-access interference• Frequency-selective multipath• Interference
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 12
Link Margin: Required RF SNR
SNRMIN = -7dB for BER 1x10-6 at 250 kbps [Eurasip 2005]
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 13
Link Margin: Received signal at 3 meters.
PRX(3m) = -74 dBm
λ
πdPP TXRX
4log20dBmdBm 10
d = 3mf = 7.5 GHz = 4 cm
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 14
Link Margin: Receiver Input Noise and SNR
SNRMIN = -7dB
9 dB of theoretical link margin, leaving room for practical implementation loss.
PN = -174 +10log10(500x106)+5 = -82 dBm
BRF = 500 MHz NFRX = 5 dB
PRX(3m) = -74 dBm
SNRRF(3m) = 12 dB
-
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 15
Robustness to frequency-selective multipath
CM3 CM4
[ICUWB 2007]
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 16
Robustness to narrowband interference
In-band narrowband interference up to 15 dBstronger than the wanted signal is tolerated.
FM-UWB
Interferer
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 17
PHY Synchronization
• Synchronization like a narrowband FSK system• CSMA: listen before transmit
Start of transmission Receiver synchronized
< 400 s synchronization time
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 18
1. Wearable MBAN Applications & Requirements
2. Regulations, Coexistence, SAR
3. QoS, Robustness
4. Medium Access Control
5. Hardware Prototype
Outline
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 19
WiseMAC-HA
• Star or mesh topology• No. of devices is scalable (traffic limited e.g. 6 to 256)• Robust and reliable: DAA • Ability to decide on efficient modes changes
• Simple radio architecture• no frequency conversion• relaxed HW specifications enable low power consumption• fast synchronization
FM-UWB is a true low-complexity LDR UWB radio technology designed to meet the requirements for Wearable Medical BAN and compatible
with requirements of other standardization bodies, e.g., ETSI eHealth.
doc.: IEEE 802.15-09-0054-00-0006
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January, 2009
John F.M. Gerrits / John R. Farserotu, CSEMSlide 28
Annex
doc.: IEEE 802.15-09-0054-00-0006
Submission
January, 2009
Slide 29
References
[TCAS2008] John F.M. Gerrits, John R. Farserotu and John R. Long,"Low-Complexity Ultra Wideband Communications", IEEE Transactions on Circuits and Systems-II, Vol. 55, No. 4, April 2008, pp. 329 - 333.
[ICUWB2007] John F.M. Gerrits, John R. Farserotu and John R. Long,"Multipath Behavior of FM-UWB Signals",ICUWB2007, Singapore, September 2007.
[TG6_2007] John F.M. Gerrits, and John R. Farserotu,"FM-UWB: A Low Complexity Constant Envelope LDR UWB Communication System",IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs),16 - 20 July 2007, San Francisco, California, USA, doc.: IEEE 802.15-07-0778-04-0ban.
[EURASIP2005] John F.M. Gerrits, Michiel H.L. Kouwenhoven, Paul R. van der Meer, John R. Farserotu, John R. Long,“Principles and Limitations of Ultra Wideband FM Communications Systems”,
EURASIP Journal on Applied Signal Processing, Volume 2005, Number 3, 1 March 2005, pp. 382 - 396.
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