The Fundamental Role of Hop Distance in IEEE802.11 Multi-Hop Ad Hoc Networks

In wireless networks, it is well understood what throughput can be achieved by nodes who can hear each other (i.e. nodes within a single cell)[1, 3]. The effects of nodes beyond the sensing range (known as hidden nodes) on a sender are complicated and difficult to analyze. Consequently, how to analytically model multi-hop adhoc networks, specially networks based on the popular IEEE802.11 standards remains largely open. In a recent paper [2], the throughput of a particular wireless network topology (linear network with a given number of hidden nodes) has been derived analytically. In this paper, we unify previous results on single-cell models, and results characterizing different types of hidden node interference and the analysis of [2], to derive a general solution for throughput given a linear network of arbitrary density and transmission distance between source and destination nodes. An important insight from our model is that there is a certain transmission distance, which is less...

• Type: Conference
• Year: 2005
• Where: ICNP
• Authors: Yan Gao, Dah-Ming Chiu, John C. S. Lui
• Keywords: Hidden Node, ICNP 2005, Network Protocols, Throughput, Wireless Network