A researching step on the WSN routing protocols' scope: ProMultihoping proposal
Author
Ferrer Martí, Jordi
Term
4. term
Education
Publication year
2011
Pages
60
Abstract
Trådløse sensornetværk (WSN) består af mange små, batteridrevne enheder, der indsamler og sender data. Da batterikapacitet er begrænset, er energistyring afgørende. Dette speciale undersøger, hvordan to almindelige routingtopologier (klyngedannelse og flade netværk) påvirker energiforbruget. I klyngede netværk organiseres sensorer i grupper, og en klyngeleder videresender data; i flade netværk er alle noder lige og ruter data direkte eller via naboer. Specialet gennemgår eksisterende energibesparende klyngeprotokoller og energibevidste flade protokoller og vurderer deres adfærd gennem simuleringer. Ved at forstå, hvordan disse protokoller fungerer, kan man vælge den rette energistrategi under forskellige forhold. På den baggrund foreslås en ny energibevidst ruteprotokol, som sammenlignes med eksisterende tilgange i simuleringer. Derudover introduceres en metode til dataaggregering for at reducere transmissioner, som testes ved simulering.
Wireless sensor networks (WSNs) consist of many small, battery-powered devices that collect and transmit data. Because batteries are limited, energy management is critical. This thesis examines how two common routing topologies (clustering and flat) affect energy use. In clustering, sensors are organized into groups and a cluster head forwards data; in flat networks, all nodes are equal and route data directly or via peers. The thesis reviews existing energy-efficient clustering protocols and energy-aware flat protocols, and evaluates their behavior through simulations. Understanding how these protocols operate helps choose appropriate energy strategies under different conditions. Building on these insights, the thesis proposes a new energy-aware routing protocol and compares it with existing approaches in simulation. It also introduces a data aggregation method to reduce transmissions, which is tested via simulation.
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