The Synchronized Peer-to-Peer Framework  and Distributed Contention-Free Medium Access for  Multihop Wireless Sensor Networks

<table>CCA in slotted
CSMA-CA—idle channel. Transmission should start at (<i>A</i>). In ns-2, it
sometimes erroneously starts at (<i>B</i>).</table>

Journal of Sensors

fig15

Figure 14

Figure 14: The Synchronized Peer-to-Peer Framework  and Distributed Contention-Free Medium Access for  Multihop Wireless Sensor Networks 