Applicazione VoIP su reti veicolari IEEE 802.11p: misurazioni ed analisi delle prestazioni.

Realizzazione di un sistema per la simulazione di un programma VoIP su ambienti veicolari comunicanti tramite interfacce wireless 802.11p a corto raggio. Ulteriore realizzazione di un programma di post-processing per l'analisi dei risultati ottenuti. Sono stati svolti molti e vari esperimenti per la raccolta dei dati

Understanding 802.11e Voice Behaviour via Testbed Measurements and Modeling

Analytic modeling and simulation of 802.11 and 802.11e have flagged up a number of potential performance problems with voice in an infrastructure mode network. This body of work has also predicted a number of possible solutions, such as the use of TXOP. In this paper we reproduce a number of these problems in a 802.11 testbed, and demonstrate that analytic models usefully bound performance. We study the impact of buffer size, which is difficult to fully capture in analytic models. We observe an asymmetry in buffer requirements between stations and the access point and explore how buffering and the use of TXOP impact throughput and delay of voice

Understanding 802.11e Voice Behaviour via Testbed Measurements and Modeling

Analytic modeling and simulation of 802.11 and 802.11e have flagged up a number of potential performance problems with voice in an infrastructure mode network. This body of work has also predicted a number of possible solutions, such as the use of TXOP. In this paper we reproduce a number of these problems in a 802.11 testbed, and demonstrate that analytic models usefully bound performance. We study the impact of buffer size, which is difficult to fully capture in analytic models. We observe an asymmetry in buffer requirements between stations and the access point and explore how buffering and the use of TXOP impact throughput and delay of voice

Understanding 802.11e Voice Behaviour via Testbed Measurements and Modeling

Analytic modeling and simulation of 802.11 and 802.11e have flagged up a number of potential performance problems with voice in an infrastructure mode network. This body of work has also predicted a number of possible solutions, such as the use of TXOP. In this paper we reproduce a number of these problems in a 802.11 testbed, and demonstrate that analytic models usefully bound performance. We study the impact of buffer size, which is difficult to fully capture in analytic models. We observe an asymmetry in buffer requirements between stations and the access point and explore how buffering and the use of TXOP impact throughput and delay of voice

Understanding 802.11e Voice Behaviour via Testbed Measurements and Modeling

Abstract — Analytic modeling and simulation of 802.11 and 802.11e have flagged up a number of potential performance problems with voice in an infrastructure mode network. This body of work has also predicted a number of possible solutions, such as the use of T XOP. In this paper we reproduce a number of these problems in a 802.11 testbed, and demonstrate that analytic models usefully bound performance. We study the impact of buffer size, which is difficult to fully capture in analytic models. We observe an asymmetry in buffer requirements between stations and the access point and explore how buffering and the use of T XOP impact throughput and delay of voice. Keywords — 802.11e, CSMA/CA, buffering, test-bed, voice, measuremen