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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)
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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: Requirements of the Layer 2 Routing over the IEEE 802.15.4 Date Submitted: 7 November, 2013 Source: Seong-Soon Joo, In-Hwan Lee, Cheol-Sig Pyo Company: ETRI Address: 161 Gajeong-dong, Yuseong-gu, Daejeon, KOREA Voice: +82-42-860-6333, FAX: +82-42-860-4197, E-Mail: ssjoo@etri.re.kr Re: Abstract: To raise a new technical issue to be discussed in the TG, questions on the scope of the layer 2 routing protocols to be handled in TG10 are proposed. Purpose: Response to the IEEE802.15 TG10 call for interest 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.

  2. Requirements of the Layer 2 Routing over the IEEE 802.15.4 Seong-Soon Joo*, In-Hwan Lee, Cheol-Sig Pyo ETRI

  3. Requirements of Layer 2 Routing (I) • user requirements • from application services • scope of the TG10 • Layer 2 routing over IEEE 802.15.4 networks • IEEE 802.15.4 PHY & MAC features designed for variety of applications

  4. Requirements of Layer 2 Routing (II) • Layer 2 routing extends the area coverage over variety of IEEE 802.15.4 PHYs and MACs • from the IEEE 802.15.4, requirements • low rate short range with battery and very low complexity • the industrial market supporting mission-critical service • low cost, low energy, reliable communications for active RFID and sensor applications • large scale process control applications such as SUN • low energy critical infrastructure monitoring • variety of requirements on Layer 2 Routing • low energy consumption : routing protocol complexity • real time : routing convergence time • deterministic delay : traffic load balancing • reliable transmission : multipath routing, rerouting • optimized routing protocol over various MAC features

  5. MAC features of IEEE 802.15.4 • IEEE 802.15.4 • non-beacon network • beacon enabled network • superframe structure • IEEE 802.15.4e • beacon enabled MAC • Deterministic and Synchronous Multi-Channel Extension (DSME) • Low Latency (LLDN) • Time Slotted Channel Hopping (TSCH) • low energy MAC • coordinated sampled listening (CSL) • receiver initiated transmission (RIT) • IEEE 802.15.4k • Time-slot Relaying based Link Extension (TRLE) • IEEE 802.15.4m • TVWS multichannel cluster tree PAN (TMCTP)

  6. Routing over IEEE 802.15.4 MAC features • routing over • asynchronous MAC • non beacon enabled PAN • CSL • RIT • synchronous MAC • IEEE 802.15.4 superframe • DSME • LLDN • TSCH • tree-topology supported MAC • TRLE • TMCTP • variety of requirements • low complexity • long lived • deterministic delay • real time

  7. Design Considerations • asynchronous MAC • minimize routing convergence time • low overhead • simple route measure calculation • synchronous MAC • minimize occupancy of slots • traffic load balancing • multi-path routing, rerouting • fit to low duty cycled network • tree topology supported MAC

  8. Conclusions • some questions • Is it possible one routing protocol fits for all? • TG10 will derive the multiple solutions as the Layer 2 Routing protocol? • Still it is required common ground for L2R over multiple MAC features? • What will be the common ground, if it is required. • these questions needs to be answered for preparing the technical guidance framework