Simulation of Random Linear Network Coding in Ad-Hoc Networks
Author
García Segovia, Beatriz
Term
10. term
Publication year
2012
Submitted on
2012-05-31
Pages
46
Abstract
This thesis investigates Random Linear Network Coding (RLNC) in ad hoc wireless mesh networks, focusing on how cooperative relaying and recoding at the relay may influence performance in a classic Alice Bob topology. Methodologically, a program was developed using NS-3 as a library so that RLNC experiments can be run without modifying the simulator. The implementation covers source, relay, and sink over NS-3’s 802.11 and propagation models. Three protocols are defined and studied: direct transmission, cooperative relaying, and cooperative relaying with recoding. For each, analytical expressions are derived (e.g., for the number of required transmissions and innovative packets) and compared against NS-3 simulations. The thesis states assumptions, discusses results, and outlines protocol improvements. While the excerpt does not provide numerical findings, the contributions include a reusable simulation tool, protocol specifications, and an analytical framework to assess the potential benefits of cooperative relaying and recoding.
Denne afhandling adresserer simulering af Random Linear Network Coding (RLNC) i ad hoc trådløse meshnet og undersøger særligt, hvordan samarbejdende relæer og rekodning i relæet kan påvirke ydeevnen i en klassisk Alice Bob topologi. Metodisk er der udviklet et program baseret på NS-3 brugt som bibliotek, så RLNC kan afprøves uden at ændre selve simulatoren. Implementeringen omfatter kilde, relæ og destination over NS-3s 802.11-modeller og udbredelsesmodeller. Der defineres og analyseres tre protokoller: direkte kommunikation, samarbejdende relæ og samarbejdende relæ med rekodning. For hver protokol opstilles analytiske beregninger, fx for antal nødvendige transmissioner og innovative pakker, som sammenholdes med NS-3 simuleringer. Afhandlingen beskriver antagelser, diskuterer resultater og skitserer forbedringer af protokollerne. Uddraget angiver ikke konkrete kvantitative resultater, men bidraget omfatter et genanvendeligt simulationsværktøj, protokolbeskrivelser og en analytisk ramme til at evaluere potentielle gevinster ved samarbejdende relæ og rekodning.
[This apstract has been generated with the help of AI directly from the project full text]
Keywords