Analysis of Asynchronous Multi-Packet Reception in 802.11 Distributed Wireless Networks

— This paper proposes a mathematical framework for evaluating the throughput of an 802.11 Distributed Wireless Network (DWN) when the system allows Multi-Packet Reception (MPR) in asynchronous operating mode. Differently from previous studies on MPR, which assume a certain synchronization between the different sources at the beginning of the respective transmissions, this work analyzes a fully distributed scenario, where each node can access to the medium in a completely asynchronous way. More precisely, a new transmission may begin in an already busy channel, as long as the current channel load is within a given threshold. The presented model, which includes the synchronous scenario as a particular case, is employed to investigate the influence of the number of allowed communications, of the load threshold, and of the minimum contention window on the network performance.

• Type: Conference
• Year: 2009
• Where: GLOBECOM
• Authors: Fulvio Babich, Massimiliano Comisso
• Keywords: Asynchronous Operating Mode, Communications, Current Channel Load, GLOBECOM 2009, Minimum Contention Window