Mittagsseminar (in cooperation with J. Lengler, A. Steger, and D. Steurer)

Date and Time: Thursday, April 26, 2012, 12:15 pm

Duration: 30 minutes

Location: OAT S15/S16/S17

Speaker: Matias Korman (Universitat Politècnica de Catalunya)

Geometric problems in Ad-Hoc Networks

Ad-hoc networks are commonly used whenever a number of electronic devices are spread across a geographical area and no central communication hub exists. In order to send messages between two sensors located far from each other, the message is repeated by other devices located between them. Ideally we could assign large enough radius to each sensor so that they can freely communicate with each other. However, this approach brings many problems like quick battery drainage and high interference. Thus, we look for a balance that allows free communication while reducing energy requirements and minimizing interference. In this talk, we will discuss the different approaches that have been taken to deal with this problem. We will also consider the case in which antennas are directional, and thus, in addition to the communication radius to each sensor one must also establish their orientation.

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