Improvingt uplink bandwidth management in 802.16 networks

Andres Emilio Arcia Moret (1) , Nicolas Montavont (1) , Alejandro Paltrineri (1) , David Ros Sanchez (1)

1 RSM - Département Réseaux, Sécurité et Multimédia

In 802.16 networks, bandwidth request-grant mechanisms allow managing the uplink bandwidth needs of subscriber stations. Subscriber stations send their bandwidth requests to the base station, where most of the bandwidth scheduling is centralized. After processing such requests, the base station schedules the transmission of uplink traffic. In this paper we present a preliminary investigation of some bandwidth allocation issues, related to the management of the perception of subscriber stations' bandwidth needs at the base station. We illustrate how the bandwidth perception varies depending on the policy used to manage bandwidth requests and grants. Focusing on the case of TCP Best Effort traffic, we assess by simulation the potential impact of such policies on the system's aggregate throughput.

Mots clés: IEEE 802.16; Uplink bandwidth management; Bandwidth perception; TCP; Best-effort

Domaines: Réseaux et télécommunications [cs.NI]; Multimédia [cs.MM]

Andres Emilio Arcia Moret, Nicolas Montavont, Alejandro Paltrineri, David Ros Sanchez. Improvingt uplink bandwidth management in 802.16 networks. 34th IEEE Conference on Local Computer Networks (LCN), Oct 2009, Zürich, Switzerland. pp.233 - 236, ⟨10.1109/LCN.2009.5355099⟩. ⟨hal-02865056⟩