doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA May 2009 Slide 1 Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Block based PHY and Packet Transmission for Low Data Rate In-body WBAN Date Submitted: [4 MAY 2009] Source: [Dong-Sun Kim 1, Jong-Ik Song 1, Tae-Ho Hwang 1, Young-Hwan Kim 1, Jae-Gi Son 1, Sang-Jin Hyun 1, Ha-Joong Chung 1 and Yangmoon Yoon 2 ] Company:[KETI 1, KORPA 2 ] Address : [KETI 1 ; #68 Yatap-dong Bundang-gu, Seongnam-si, Gyeonggi-do , South Korea, KORPA 2 ; 78 Garak-dong, Songpa-gu, Seoul, , South Korea] Voice: [ , ], FAX: [ , ] 1, 2 ] Re: [] Abstract: Key requirements of the BAN standards effort, including power, cost and throughput scalability, can be addressed using a scalable block frame structure based on variable block FEC. In addition, BCH encoded 2FSK modulation scheme enable simple structure, low power consumptions and low cost transceiver implementation under in- body communication channel. Purpose: This document is intended as a proposal for addressing the requirements of the TG6 standard. Notice: This document has been prepared to assist the IEEE P 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 P

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Contributors Name Affiliation Dong Sun Jong-Ik Tae-Ho Young-Hwan Jae Gi Sang-Jin Ha-Joong Yangmoon May 2009 Slide 2 KETI : Korea Electronics Technology Institute KORPA : Korea Radio Promotion Agency

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Slide 3 Presentation Outline Applications for low data-rate in-body WBAN Regulations for 400MHz MICS Comparison of Modulations Error control frame for Low-data-rate In-body Communication Error Control Frame Structure MAC Channel Access Topology for Implantable Devices Scalable Packet Conclusion Reference May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Slide 4 Applications for Low-data-rate In-body WBAN Applications for Implantable BAN - Deep Brain Stimulator - Implantable Cardioverter Defibrillator - Pacemaker - Drug-Delivery ApplicationTarget Data RateLatencyBER EMG 32 Kbps (1KHz sample, 16-bit ADC, 2 channels) < 250 ms< Deep Brain Stimulator < 320 Kbps< 250 ms< Drug Delivery< 16 Kbps< 250 ms< ECG 192 Kbps (6 Kbps, 32 channels) < 250 ms< May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Regulations for 400MHz MICS International Reference –ITU-R SA 1346, Sharing between the Meteorological Aids Service and Medical Implant Communications Systems(MICS) operating in the Mobile Service in the Frequency Band MHz US standards –US FCC Regulations, available from : –47CFR –FCC add adjacent spectrum(401~402 & 405~406 MHz) for MICS March 19, 2009, By report and order(FCC09-23) Slide 5 ScenarioDescriptionFrequency BandChannel Model S1Implantable to Implantable MHzCM1 S2Implantable to Body Surface MHzCM2 S3Implantable to External MHzCM2 S4Body Surface to Body Surface(LOS) 13.5, 50, 400, 600, 900MHz 2.4, GHz CM3 S5 Body Surface to Body Surface(NLOS) 13.5, 50, 400, 600, 900MHz 2.4, GHz CM3 S6Body Surface to External (LOS) 900MHz 2.4, GHz CM4 S7Body Surface to External (NLOS) 900MHz 2.4, GHz CM4 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Comparison of Modulations Simulation results under channel model 2 –BPSK, 2FSK, 4FSK Slide 6 System configuration –CM2 400MHz PL model 10cm away from the body surface, FSPL can be added CM2. link budget –Carrier Frequency : 403.5MHz –BW : 300kHz –MCS BFSK – coherent / non-coherent BPSK – hard decision 4FSK – coherent / non-coherent –Noise Figure : 5dB –HW loss margin : 5dB –Thermal noise : -174dBm –Tx power : 25μW –Antenna Gain : 0dB May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Comparison of Modulations Simulation results for Different demodulations [AWGN] –BPSK, 2FSK, 4FSK Slide 7 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Error control frame for Low-data-rate In-body Communication Design objective –Scalable packet size Advantage : In highly attenuated in-body model, scalable block based transmission would be better than fixed packet based transmission. Bitmap based data-block management –Power efficiency modulation –High reliability Header : 16byte, BCH(128,120) Data : variable block length (Max block FEC: BCH(256,248)) Error control flow using block map based frame structure. –Bandwidth efficiency modulation 2FSK Slide 8 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA MAC Channel Access Tow type of device –Coordinator, Implantable Device Coordinator must scan before transmission –CCA(carrier/energy) each channel over 10 msec Data transmission –Block map based transmission Binary Sequencing 1bit Flow Control –Frame Pending or stop transmission 48bit address information –16bit BAN ID, 32bit transceiver ID Slide 9 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Error Control Frame Structure Slide 10 Header FEC for implantable devices 32bit Bitmap Block for 32 data blocks 16bit Ban ID : Medical Service ID 32bit Transceiver ID : 2 32 = 4G Scalable Block Size : Num of bits in Block : 8/16/32/64/128/256 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Topology for Implantable Devices Maximum Number of Nodes –Under 10 Nodes in 2m (Address: 2 32 Nodes) Star Topology –Indirect Transmission –Broadcast –Multi-hop Link Slide 11 [Coordinator / Device] CD Wakeup Data D0 D2 D3 D1 Wakeup [Indirect Transmission] Data C May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Channel Access Sequence Diagram Slide 12 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Retransmission Mechanism Slide 13 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Flow Control Slide 14 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Scalable Packet PER comparison of variable packet size –Variable packet sizes are not issue under path loss + shadow model [CM2] Slide 15 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Scalable Packet PER comparison of variable packet size –Variable packet sizes are not issue under path loss + shadow model [CM2] Slide 16 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Conclusion Transceiver with error control enabled scalable frame block decreases retransmission packet size and increases duty efficiency. Use 2FSK combined with block FEC at low data rate to let simple receiver structure and implementation. This presentation introduces key scheme to be applicable to a standard of WBAN Slide 17 May 2009

doc.: IEEE Submission D.S Kim, J.I Song, T.H Hwang, Y.H Kim, J.G Son, S.J Hyun, H.J Chung, KETI Y. M Yoon, KORPA Reference Slide 18 Kamya Yekeh Yazdandoost and Ryuji Kohno, “Channel Model for Body Area Network(BAN)”, , April Sukor.M, Ariffin.S,, “Performance Study of Wireless Body Area Network in Medical Environment,” Second Asia International Conference on, 2008 doc. IEEE doc. IEEE FCC add adjacent spectrum(401~402 & 405~406 MHz) for MICS March 19, 2009, By report and order(FCC09-23) FCC, Medical implant communications, January 2003, Arthur W. ASTRIN, Huan-Bang LI, and Ryuji KOHNO, “Standardization for Body Area Networks,” IEICE TRANS. COMMUN., Vol.E92-B, No. 2, pp , February 2009 Tolga Yalcin, and Netlin Ismailoglu, “A Low-Power System-on-Chip for Telecommunications : Single Chip Digital FM Receiver/Demodulator IP,” The thirty-Third Asilomar Conference on Signals, Systems, and Computers, Vol. 1, pp , Oct John.G.Proakis, "Digital Communications 2nd Edition.", Mcgraw Hill, ISBN May 2009