1 / 5

A Location Service for Beacon Vector Routing

A Location Service for Beacon Vector Routing. Chris Baker, Daekyeong Moon, Jorge Ortiz. Motivation and Problem Formulation. Beacon Vector Routing (BVR) Point-to-point routing scheme Dynamic beacon-derived coordinate system

lucien
Download Presentation

A Location Service for Beacon Vector Routing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A Location Service for Beacon Vector Routing Chris Baker, Daekyeong Moon, Jorge Ortiz

  2. Motivation and Problem Formulation • Beacon Vector Routing (BVR) • Point-to-point routing scheme • Dynamic beacon-derived coordinate system • Each node in network has an associated node id and a runtime-derived coordinate • Assumptions • Node id’s are unique and unchanging • Beacon Vector Coordinates are subject to change with topology of the network • Current BVR • sends [node_id, BVCoords] mapping through Ethernet backchannel

  3. Key Solution Ideas • Distributed Cache/Lookup Scheme • Consistent hashing to spread the lookup-request load amongst beacons • Cache entry replacement • Explore cache size and replacement schemes to minimize packets moving through network and balance with system constraints (i.e. memory size, power, etc) • Eavesdropping scheme • Nodes eavesdrop packets on route to beacons and cache beacon responses • Nodes respond to beacon request to shorten response time and decrease network traffic

  4. Current Status and Future Plans • Currently implemented/tested: • Initial version of BVR Location Service modules in place (no local caching) • Cache modules in progress • Code tested in TOSSIM • High-level simulator (HLS) in progress for testing different caching schemes • Future Plans: • Integrate local caching into version 0.1 of Location Service • Test and implement cache entry replacement in HLS and TOSSIM • Test BVR Location Service on Motes • Tweak and turn knobs to find best performance/overhead tradeoffs in real test-bed • Implement Beacon election algorithm

  5. Questions?

More Related