| 摘要 |
When a node (N) enters a new environment, and periodically thereafter, it initiates a network-learning protocol, wherein the node broadcasts a query at a particular power setting, and receives responses from each of the other nodes (A-F) that received the query. The node then adjusts its power setting, resends the query, and again receives responses to the query. This process is repeated until the node has sent the query throughout a set of power settings. During this process, the node notes which other nodes respond to the query at each power setting. The transition point of the power setting at which each node begins to respond defines the electronic-distance, or range, of each node from the querying node. The querying node subsequently uses the range of each node to determine the power setting that it uses to communicate with each node. |
