12.07.2015 Views

Wireless Ad Hoc and Sensor Networks

Wireless Ad Hoc and Sensor Networks

Wireless Ad Hoc and Sensor Networks

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

352 <strong>Wireless</strong> <strong>Ad</strong> <strong>Hoc</strong> <strong>and</strong> <strong>Sensor</strong> <strong>Networks</strong>Totaldata per Joule (Kbits/J)0.60.50.40.30.20.10Data transmitted per Joule (cluster topology)20 clusters, 8 sensors per cluster, duration 20s1 2 3 4 5 6 7 8 9 10Per-flow rate (Kbps)Sleeping mode + DPCDPC802.11FIGURE 7.27Total data transmitted per joule.Each flow coming out of the CH is assigned equal weight, 0.1428, for thesake of convenience the ADFS algorithm parameters: α = 09 . ,SF = 002 . β = 01 . , expected delay is 1.0 sec, expected queue length is 10,sum of initial weights assigned to all the flows is equal to unity, ρ is a5 5Fire location(sensors generatemore data)043BS1 2 3 Cluster head #3<strong>Sensor</strong> nodeFIGURE 7.28Contention time for varying per flow rate.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!