Achieve Significant Throughput Gains in Wireless Networks with Large Delay-Bandwidth Product

Abstract

Traditionally, Bandwidth-Delay Product can be used to measure the capacity of network “pipe” between two nodes. However, in multi-hop wireless networks, Bandwidth-Delay Product cannot reveal the network condition accurately. In this paper, we define a new metric called Delay-Bandwidth Product (DBP) for wireless networks, which measures the capacity of a one-hop pipe in wireless networks. Wireless networks with a large DBP can have a throughput larger than the one based on traditional understanding. We propose a scheduling algorithm aims for making use of the large DBP in wireless networks. We then design simulations to figure out how much throughput gains can be achieved in wireless networks, with small DBPs and large DBPs respectively. The simulation result demonstrates that we can achieve significant throughput gains in wireless networks with large DBP.