Design of an enhanced access point to optimize TCP performance in Wi-Fi hotspot networks (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Design of an enhanced access point to optimize TCP performance in Wi-Fi hotspot networks (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s11276-006-6466-9 (literal)

Alternative label

• [1] Bruno R., [1] Conti M., [1] Gregori E. (2007)
  Design of an enhanced access point to optimize TCP performance in Wi-Fi hotspot networks
  in Wireless networks; Kluwer Academic Publishers, Dordrecht (Paesi Bassi)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• [1] Bruno R., [1] Conti M., [1] Gregori E. (literal)

Pagina inizio

• 259 (literal)

Pagina fine

• 274 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• Codice Puma: cnr.iit/2007-A0-029 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://dl.acm.org/citation.cfm?id=1232047 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 13 (literal)

Rivista

• Wireless networks (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• Wireless Networks Journal (literal)

Note

• Scopu (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• [1] CNR-IIT, Pisa, Italy (literal)

Titolo

• Design of an enhanced access point to optimize TCP performance in Wi-Fi hotspot networks (literal)

Abstract

• In the last years, the number of Wi-Fi hotspots at public venues has undergone a substantial growth, promoting the WLAN technologies as the ubiquitous solution to provide high-speed wireless connectivity in public areas. However, the adoption of a random access CSMA-based paradigm for the 802.11 MAC protocol makes difficult to ensure high throughput and a fair allocation of radio resources in 802.11- based WLANs. In this paper we evaluate extensively via simulations the interaction between the flow control mechanisms implemented at the TCP layer and the contention avoidance techniques used at the 802.11 MAC layer. We conducted our study considering initially M wireless stations performing downloads from the Internet. From our results, we observed that the TCP downlink throughput is not limited by the collision events, but by the inability of the MAC protocol to assign a higher chance of accessing the channel to the base station. We propose a simple and easy to implement modification of the base station's behavior with the purpose of increasing the TCP throughput reducing useless MAC protocol overheads. With our scheme, the base station is allowed to transmit periodically bursts of data frames towards the mobile hosts. We design a resource allocation protocol aimed at maximizing the success probability of the uplink transmissions by dynamically adapting the burst length to the collision probability estimated by the base station. By its design, our scheme is also beneficial to achieve a fairer allocation of the channel bandwidth among the downlink and uplink flows, and among TCP and UDP flows. Simulation results confirm both the improvement in the TCP downlink throughput and the reduction of system unfairness. (literal)

Editore

• Kluwer Academic Publishers (Editore)

Prodotto di

• Ubiquitous Internet (ICT.P07.018.002) (Modulo)
• Istituto di informatica e telematica (IIT) (Istituto)

Autore CNR

• ENRICO GREGORI (Unità di personale interno)
• RAFFAELE BRUNO (Persona)
• MARCO CONTI (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di informatica e telematica (IIT) (Istituto)
• Ubiquitous Internet (ICT.P07.018.002) (Modulo)

Autore CNR di

• RAFFAELE BRUNO (Persona)
• MARCO CONTI (Unità di personale interno)
• ENRICO GREGORI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Wireless networks (Rivista)

Editore di

• Kluwer Academic Publishers (Editore)