November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Mesh PAN Alliance (MPA) and .15.3 integration] Date Submitted: [2005-11-15] Source: [Guido R. Hiertz, Yunpeng Zang, Sebastian Max, Hans-Jürgen Reumerman] Company [Philips Research Laboratories Aachen & ComNets, RWTH Aachen University] Address [Kopernikusstr. 16, 52074 Aachen, Federal Republic of Germany] Voice: [+49-241-80-25-82-9], FAX: [+49-241-80-22-24-2], E-Mail: [hiertz@ieee.org, zangyp@ieee.org, smx@comnets.rwth-aachen.de, hans-j.reumerman@philips.com] Re: [IEEE P802.15.5 WPAN MESH Networking Call For Proposals IEEE 802.15-5/0071, January 2005] Abstract: [The document describes enhancements to our proposal 15-05-0247-00-0005 to seamlessly integrate 802.15.3 legacy devices into our distributed, decentralized Mesh WPAN MAC proposal.] Purpose: [We have identified means to set-up a decentralized Mesh among devices that can work as .15.3 PNC for non-Mesh aware .15.3 legacy devices. Our approach foresees seamless integration of .15.3 to provide them service via the Mesh WPAN backbone.] 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. Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Mesh PAN Alliance (MPA) November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh PAN Alliance (MPA) Guido R. Hiertz Sebastian Max Yunpeng Zang Hans-Jürgen Reumerman Philips Research Laboratories Aachen Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Overview Mesh PAN Alliance Integration with .15.3 Superframe structure November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Overview Mesh PAN Alliance Superframe structure Beacon Period Data Transmission Period Frame Aggregation Multi-Channel extension Integration with .15.3 Local Beacon Local CTA Mesh integration Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Philips Research Laboratories ComNets, RWTH Aachen University November 2005 Mesh PAN Alliance Philips Research Laboratories ComNets, RWTH Aachen University MAC design http://mpa.comnets.rwth-aachen.de Guido R. Hiertz, Sebastian Max et al., Philips

Mesh WPAN design criteria November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh WPAN design criteria High speed WPAN High throughput Low latency Easy set-up Cheap devices Single transceiver/radio solution Decentralized Data services Isochronous Asynchronous High spatial frequency reuse Support for single/multiple frequency Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Mesh WPAN Timing structure November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh WPAN Timing structure Superframe Slotted structure Medium Access Slots (MAS) Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Mesh WPAN Superframe structure November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh WPAN Superframe structure Mesh Beacon Period (MBP) Network and topology management Mesh Traffic Period (MTP) Data exchange Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Mesh & legacy .15.3 integration November 2005 Mesh & legacy .15.3 integration Hierarchical approach for legacy device integration High level superframe Mesh Beacon Period, Mesh Traffic Period Local level superframe .15.3 Superframe integrated into Mesh superframe Local .15.3 beacon etc. Guido R. Hiertz, Sebastian Max et al., Philips

Hierarchical approach – Local level November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Hierarchical approach – Local level Superframe equally slotted Medium Access Slots (MAS) Mesh WPAN devices serve .15.3 devices as PNC Reserved MAS for piconet traffic Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Local level Superframe structure November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Local level Superframe structure Mesh and local superframe offset Each PNi shifted by i to Mesh superframe t Local i Local Beacon #m CTA 2 (private) Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Example: Integration of 802.15.3 devices November 2005 Example: Integration of 802.15.3 devices Mesh Link Obstacle Guido R. Hiertz, Sebastian Max et al., Philips

Mesh Beacon Period Used for coordination Every device transmits beacon November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh Beacon Period Used for coordination Every device transmits beacon Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Mesh Beacon Period (MBP) November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Mesh Beacon Period (MBP) Three Mesh Beacon slots per Medium Access Slot (MAS) Mesh Beacon size may vary Adaptive Mesh Beacon protocol allows flexible number of Mesh Beacons per MAS Mesh Beacon carry Device ID Synchronization information Neighborhood information Neighbor‘s neighbors Medium Access Information Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Neighborhood information map November 2005 Neighborhood information map Mesh Beacons send at most robust PHY mode Reception close to interference range Devices store neighborhood information  Neighborhood table Guido R. Hiertz, Sebastian Max et al., Philips

Mesh Beacon Period (MBP) measurements November 2005 Mesh Beacon Period (MBP) measurements Neighborhood table informs about used Mesh Beacon slots Mesh Devices continuously listen during MBP Store received power indication for each Mesh Beacon Combine power and Mesh Beacon device ID  Neighborhood and interference graph Guido R. Hiertz, Sebastian Max et al., Philips

Data Transmission Period November 2005 Data Transmission Period Guido R. Hiertz, Sebastian Max et al., Philips

Data Transmission Period November 2005 Data Transmission Period Scheduled transmissions Contention avoidance Collision avoidance Distributed Mutual interference awareness Efficient spatial frequency reuse Support for Distributed Quality of Service A-/synchronous data Wireless USB VoIP Multimedia (Video, Audio) streaming  Distributed Reservation Protocol (DRP) Guido R. Hiertz, Sebastian Max et al., Philips

Distributed Reservation Protocol (DRP) November 2005 doc.: IEEE 802.15-05-0670-00-0005 November 2005 Distributed Reservation Protocol (DRP) Devices announce desired transmissions Receiver & transmitter negotiate via beacon Beacons carry information on other reservations Interference awareness allows parallel transmissions Guido R. Hiertz, Sebastian Max et al., Philips Guido R. Hiertz, Sebastian Max et al., Philips

Data transmission rules November 2005 Data transmission rules Reservations must be accepted by receiver Transmitter announces wish in beacon Receiver accepts or declines wish in its beacon Priority support High priority reservations may replace low priority All data transmission are unidirectional No immediate ACK DATA and ACK separate Slots assigned to transmitter only Predictable interference Delayed ACK Piggyback with DATA Explicit as Block ACK Guido R. Hiertz, Sebastian Max et al., Philips

Frame Aggregation Aggregate small frames into larger PDU November 2005 Frame Aggregation Aggregate small frames into larger PDU Separate Frame Check Sequence Multiple receivers possible Guido R. Hiertz, Sebastian Max et al., Philips

Multiband PHY – MAC enhancements November 2005 Multiband PHY – MAC enhancements Guido R. Hiertz, Sebastian Max et al., Philips

Conclusion Ready for the next decade of wireless freedom November 2005 Conclusion Mesh PAN Alliance (MPA) proposal Distributed & decentralized Quality of Service support Hidden/Exposed node problem solved High spatial frequency reuse Robust & reliable Legacy .15.3 seamlessly integrated Outlook Simulation results Further details on beaconing World model example Routing procedures Ready for the next decade of wireless freedom Guido R. Hiertz, Sebastian Max et al., Philips

Thank you for your attention! November 2005 Thank you for your attention! http://mpa.comnets.rwth-aachen.de The Mesh PAN Alliance Get meshed, get freedom for your Wireless Personal Area Networks Guido R. Hiertz, Sebastian Max et al., Philips