Autonomous Link-based TSCH Cell Scheduling
draft-3k1n-6tisch-alice0-01

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6TiSCH Working Group                                    Seo Hyang Kim
Internet-Draft                              Seoul National University
Intended status: Standards Track                           Na Eon Kim
Expires: June 17, 2017                      Seoul National University
                                                       Nguyen Duc Lam
                                            Seoul National University
                                                       Chong Kown Kim
                                            Seoul National University
                                                    December 15, 2016

                 Autonomous Link-based TSCH Cell Scheduling
                        draft-3k1n-6tisch-alice0-01

Abstract

   This document describes the limitation of present TSCH cell 
   scheduling methods which use centralized or decentralized approach. 
   It firstly overview pros and cons of various cell scheduling 
   approaches including centralized, decentralized and autonomous TSCH 
   cell scheduling methods. It also suggest design considerations on 
   devising autonomous scheduling approach to avoid unexpected 
   confliction and increase channel utilization. For the last, it 
   provides one example that reflects all design considerations 
   mentioned. 

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Kim, et al.               Expires June 17, 2017                [page 1]

Internet-Draft                   ALICE                    December 2016

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Table of Contents

 1.  Introduction . . . . . . . . . . . . . . . . . . . .. . . . . .  3
 2.  Requirements Language . . . . . . . . . . . . . . . . . . . . .  3
 3.  Terminology. . . . . . . . . . . . . . . . . . . . . . . .  . .  3
 4.  TSCH Cell Scheduling. . . . . . . .. . . . .  . . . . . . . . .  3
      4.1.  Centralized Approach . . . . . . . . . . . . . . . . . .  4
      4.2.  Decentralized Approach. .  . . . . . . . . . . . . . . .  5
      4.3.  Autonomous Approach . . .  . . . . . . . . . . . . . . .  5
 5.  Design Considerations for Autonomous TSCH Cell Scheduling . . .  6
      5.1.  Link-based scheduling  . . . . . . . . . . . . . . . . .  6
      5.2.  Hop-count-based scheduling . . . . . . . . . . . . . . .  7
      5.3.  SlotframeID . . . . . . .  . . . . . . . . . . . . . . .  7
      5.4.  Upstream: link-based, Downstream: node-based . . . . . .  7
      5.5.  Upstream downstream scheduling . . . . . . . . . . . . .  8
 6.  ALICE overview  . . . . . . . . . .. . . . .  . . . . . . . . .  8
      6.1.  Link-based scheduling  . . . . . . . . . . . . . . . . .  9
      6.2.  Hop-count-based scheduling . . . . . . . . . . . . . . .  9
      6.3.  SlotframeID . . . . . . .  . . . . . . . . . . . . . . .  9
      6.4.  Upstream: link-based, Downstream: node-based . . . . . . 10
      6.5.  Upstream downstream scheduling . . . . . . . . . . . . . 10 
 7.  ALICE details . . . . . . . . . . . . . . . . . . . . . . . . . 10 
      7.1. Upstream cell scheduling. . . . . . . . . . . . . . . . . 11
           7.1.1. Recieve scheduling . . . . . . . . . . . . . . . . 11
           7.1.2. Send scheduling. . . . . . . . . . . . . . . . . . 11
      7.2. Downstream cell scheduling. . . . . . . . . . . . . . . . 11 
           7.2.1. Recieve scheduling . . . . . . . . . . . . . . . . 11
           7.2.2. Send scheduling. . . . . . . . . . . . . . . . . . 11
      7.3. Upstream and Downstream Scheduling. . . . . . . . . . . . 12
 8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 12 
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