E level 1 and level 2 the value is the radius of the

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: oute Each level-2 stream includes level-1 stream In level-2, the size of the radius of the stream can be determined based on QoS specified in the instruction Combination of types and levels creates different kinds of QoS for a stream After streams are chosen, the source sends N-message to establish the streams back to the sink The repairs of streams are accomplished via N-message and S-message Once the streams are accomplished, data travels from sources to the sink through either level-1 or level-2 stream with I-message The sink can update the instruction (or task) at the sources through either level-1 or level-2 stream using U-message Both sources and sink can terminate the streams using U-message SER 1. Source Discovery A sink broadcasts an S-message to find routes from sink to source S-message contains the following fields: TID NAP LID NH AE TID: Task ID NAP: Network Access Point (indicates where the instruction is originated; represents a unique sink) LID: Local ID (each node has a local ID that is randomly selected from a set) NH: Number of hops from the sink AE: Average energy of a route AE = NHi-1 * AEi-1 + Ei NHi-1 + 1 SER 1. Source Discovery TID has the following fields: LI MT INS TLOC LI: Length indicator MT: Message type (MT=0 (S-message); MT=1 (I-message); MT=2 (U-message); MT=...
View Full Document

Ask a homework question - tutors are online