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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ u-Services That Require Features of WiBEEM Protocol ] Date Submitted: [14 November, 2007] Source: [Suk-Hyun Song (1), and Ho-In Jeon (2)]

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:[u-Services That Require Features of WiBEEM Protocol] Date Submitted: [14 November, 2007] Source: [Suk-Hyun Song (1), and Ho-In Jeon(2)] Company: [National Information Society Agency(NIA) (1), and Dept. Engineering, Kyung-Won University (KWU) (2)] Address: [San 65, Bok-Jung-Dong, Sung-Nam-Shi, Kyung-Gi-Do, Republic of Korea] Voice 1: [ +82-31-753-2533], Voice 2:[ +82-10-4708-5328] FAX: [+82-31-753-2532], E-Mail: [jeon1394@kornet.net] Re: [This work has been supported by KATS and SKTelecom.] Abstract: [This document proposes some services enabled by WiBEEM Protocol.] Purpose: [Technical Contributions on the IEEE 802.15 WNG Task Group] 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. Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  2. u-Services That Require Features of WiBEEM Protocol Suk-Hyun Song(1), and Ho-In Jeon(2) (1) NIA (National Information Society Agency), (2) Kyung-Won University, Republic of Korea Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  3. Contents • Introduction to WiBEEM(Wireless Beacon-enabled Energy Efficient Mesh Network) Protocol • Improved PHY with Data Rate • Advanced MAC with Beacon Scheduling with QoS Support • Enhanced NWK with Device Mobility • u-Services that require features of WiBEEM Protocol • Healthcare Service • ITS • Disaster Prevention Service • Bridge Management Service • Underground Facility Management • Conclusion Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  4. Features of WiBEEM Consumes very low power Ease of installation Reliable data transfer from 250 Kbps to 4 Mbps 1-hop comm. within 30 m and expandable to several kilometers via Mesh. Mesh topology for beacon-enabled sensor networks Extremely low-cost A very long battery life A simple and flexible protocol Overview of the WiBEEM Specification • Target market • U-Healthcare • Information Infrastructure for Digital Hospital • WBAN (Body Area Network) • U-Home Networking • Automatic Meter Reading • Universal Remote Controller • Automotive Networks • Industrial Networks • Facility Management of a City • Sensor Network • Audio/Video capable Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  5. WiBEEM Protocol Stack Higher Layer NLDE-SAP NLME-SAP WiBEEM NWK Layer Security Network Management Network Message Broker Routing Management MLDE-SAP MLME-SAP WiBEEM MAC Layer PLDE-SAP PLME-SAP WiBEEM Physical (PHY) Layer 2.4 GHzRadio (Ch.1) 2.4 GHzRadio (Ch.16) 2.4 GHzRadio (Ch.3) 2.4 GHzRadio (Ch.2) Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  6. Data Rate Minimum 250 Kbps when just one channel is used. Maximum 4 Mbps for Isochronous Data using 16 channels Channels Max 16, Min 1 channel in the 2.4GHz ISM band ACA (Adaptive Channel Aggregation) concept is used. Modulation O-QPSK at 2.4GHz Coexistence with 802.11b DSSS and 802.11g OFDM of WLAN 802.15.1 FHSS of Bluetooth 802.15.3 DSSS of High-Rate WPAN 802.15.4 O-QPSKof Low-Rate WPAN PHY Overview of the WiBEEM Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  7. PPDU: 133 Bytes 1 8 to 127 Octets: 4 1 Preamble Sequence Start ofFrame Delimiter Frame Length MPDU(MAC Protocol Data Unit) SHR (Synchronization Header) PHR ( PHYHeader ) PSDU (PHY Service Data Unit) PPDU(PHY Protocol Data Unit) • Bigger PPDU size would be preferable. • Large file synchronizations. • PACS applications in the hospital • Data contention and delay may cause some problems. Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  8. Multiple Beacons in one Superframe Low Power Consumption due to the Perfect Synchroni- zation all over the Network by using Beacon Scheduling Dynamic Channel Selection Network Topology Star Topology P2P Topology Cluster-tree Network Topology Mesh Topology for Beacon as well as Beaconless Network 65,536 = 216 devices per MPID (Mesh Piconet ID) Data Security Support with AES-128 Security MAC Overview of the WiBEEM Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  9. New Superframe Structure of WiBEEM Beacon #1 Beacon #n Beacon #1 Beacon #2 DSP BOP PQP CAP CFP CFP CFP = CFPL ×aBaseSuperframeDuration [symbols] PQP PQP = PQPL ×aBaseSuperframeDuration [symbols] BOPL BOPL = BTTSL × maxBeaconNumber [symbols] SD (Superframe Duration) SD = aBaseSuperframeDuration × 2SO [symbols] = 960 × 2SO [symbols] BI (Beacon Interval) BI = aBaseSuperframeDuration × 2BO [symbols] = 960 × 2BO [symbols] Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  10. Beacon Scheduling Done for 40 Nodes 14 16 8 11 12 17 13 12 9 18 29 13 12 10 6 10 11 11 11 26 15 7 27 9 19 22 25 2 23 5 7 8 2 9 39 10 5 13 6 9 1 20 28 24 1 6 5 12 4 6 MPC 8 21 10 4 14 3 8 38 9 3 7 10 15 7 13 7 30 34 32 37 40 16 11 5 15 36 31 BTTS 35 14 BTTSL 33 1 3 4 2 6 5 15 16 7 8 14 10 9 11 13 12 DeepSleep BOP CFP CAP PQP 1 3 4 5 6 36 2 14 16 18 33 34 9 13 7 8 35 12 32 11 21 10 19 28 15 20 38 27 40 24 22 26 23 17 29 39 30 31 37 25 Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  11. Beacon Frame Format and Payload Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  12. MAC and NWK FC Fields for QoS MAC Frame Control Field Bits : 0-2 3 4 5 6 7-9 10-11 12-13 14-15 Frame Type Security Enabled Frame Pending Ack. Request Intra-PAN Reserved Destination Addressing Mode QoS Priority Source Addressing Mode NWK Frame Control Field 10-11 Bits : 0-1 2-5 6 7 8 9 12-15 Frame type Protocol version Discover route Fragmentation Multicast Flag Security Reserved QoS Priority Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  13. Proposed Prioritized Channel Access in CAP • Each channel access function contends with • AIFS[AC] (instead of LIFS) and CW[AC] (instead of CW) Contention Windowfrom [0,CW[AC]] AIFS[AC] Immediate access when medium is idle >= AIFS[AC] AIFS[AC] BackoffWindow SIFS Busy Medium Next Frame Slot Time Defer Access Select Slot and decrement backoffas long as medium stays idle Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  14. Backoff Times with UP for New MAC Beacon #1 Traffic with UP of 6 and 7 only can access the channel in this tile slot. Beacon #1 Beacon #2 DSP BOP PQP CAP CFP Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  15. Network Formation by Passive and Active Scan Network Growing and Network Management Efficient Real-Time Short Address Allocations Addressing mechanism based on NAA (Next Address Available) algorithm for Efficient Address Space Usage The short address can be assigned in real-time. Low Latency Routing Mechanism WiBEEM Routing based on simplified AODV-like routing Different from the ZigBee routing Network Message Broker High speed mobility support Data Fragmentation NWK Overview of the WiBEEM Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  16. NWK General Frame Format 0/1 0/1 Var Var 2 2 2 0/2 0/1 Variable Octets: 2 Fragmen-tation Length Fragmen-tation ID Fragmen-tation Count Fragmen-tation Number Frame Control Target Address Origi-nator Address TTL Max. Broadcast Hop Count Broadcast ID Number Frame Payload Routing Fields NWK Payload Fragmentation Fields NWK Header Bits : 0-1 2-5 6 7 8 9 10-15 Frame Type Protocol Version Discover Route Fragmentation Multicast Flag Security Reserved Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  17. NAA Information in Beacon Payload Bits : 0-3 4-7 8-11 12 13 14 15 Beacon Order Superframe Order Final CAP Slot Battery life Extension Reserved PAN Coordinator Association Permit Octets: 2 1 2 k m Variable 2 4/10 Frame Control Beacon Sequence Number Source Address Information Superframe Specification CFP Fields Pending Address Field Beacon Payload FCS MFR(MAC Footer) MHR (MAC Header) MSDU (MAC Service Data Unit) 1 1 1 1 2 2 2 1 1 1 Octets: 1 BOPL My BTTS (BeaconTx TimeSlot) BTTSL Depth NAA Child Short Address Parent Short Address HOP Count Child Device Type My Profile ID Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  18. Association Request NAA Grant Request NAA Grant Response Association Response Efficient Real-Time Addressing by NAA WMC A NAA Value in theBeacon Payload is 5 3 4 B C D WRC WRC WRC 1 NAA Value in theBeacon Payload is 5 2 WRC F=5 E Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  19. Services Requiring Features of WiBEEM • Healthcare Service • ITS • Disaster Prevention Service • Bridge Management Service • Underground Facility Management • And there are a lot more! Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  20. Intelligent Transport System TrafficControl Center UCC Control Box CCTV Traffic Lights VMS Detectors Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  21. Industry Home PC Environment Management Vibration Sensor nod Construction stream Router Water contamina Population Sensor node Router Sink Node + CCTV PDA Officer CCC Information Air Population Sensor node Router Notice Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  22. Facility Management City Traffic Control Center UCC Disaster Prevention Center Router Router Router Router Pressure PTZ-Camera Vibration G/W Gas Leak G/W Static Measurement Temperature Bridge Safety Indicator Salinity Dynamic Measurement PTZ-Camera Freezing/Fog Sensor Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  23. Bridge Management - Today CDMABS CDMABS CDMABS CDMAG/W CDMAG/W WindPressureSensor CDMAG/W CrackSensor CDMAG/W WaterTemperatureSensor CDMAG/W WaterPollutionSensor CDMAG/W Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  24. Bridge Management - Tomorrow WindPressureSensor WiBEEMInfrastructure WaterTemperatureSensor WiBEEMInfrastructure WaterPollutionSensor Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  25. Road Management Web Camera WiBEEMInfrastructure WiBEEMInfrastructure Fog Sensor FreezingSensor Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  26. U-Healthcare Service Scenario U-Healthcare Center Home Internet 4. Transmit the Collected Data 2. Data Collection 3. Emergency Alert FTTH 1. Subscription of U-Healthcare Service RG(AP) 5. Store Data WiBEEM WirelessInternet 6. Analyze the Data 4. Transmit the Collected Data 8. Emergency Service U-Hospital CDMA, GSM, or HSDPA WiBEEM 10. Provision of Contents Subscribed CellularPhone 2. Data Collection 7. Call the Emergency Service 9. Periodic Monitoring 3. Emergency Alert Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  27. Healthcare Services WiBEEM Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  28. Conclusions • WiBEEM protocol has unique features of supporting low power consumption, device mobility, and QoS. • There are many examples of services that require device mobility and QoS. • Facility management • Healthcare Services • Disaster Prevention • Enhancement of IEEE 802.15.4 MAC has to be made that can support QoS and device mobility over mesh network. • WiBEEM protocol is one of the possible candidates. Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

  29. Acknowledgment • This work has been supported partially by NIA(National Information Society Agency). Suk-Hyun Song (NIA), and Ho-In Jeon (KWU)

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