Analysis of a simple feedback scheme for error correction over a lossy network

• A control theoretic analysis of a simple error correction scheme for lossy packet-switched networks is presented. Based on feedback information from the error correction process in the receiver, the sender adjusts the amount of redundancy using a so called extremum-seeking controller, which do not rely on any accurate model of the network loss process. The closed-loop system is shown to converge to a limit cycle in a neighborhood of the optimal redundancy. The result are validated using packet-based simulations with data from wireless sensor network experiments.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)

Nyckelord

Cost function

Error correction

Feedback

Limit-cycles

Packet switching

Protocols

Redundancy

Streaming media

Switches

Wireless sensor networks

Automatic control

Reglerteknik

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)