Effects of Small Transfers and Traffic Patterns on Performance and Cache Efficacy of Ad Hoc Routing
Shao-Cheng Wang, Ahmed Helmy · 2003
Abstract Short-lived small transfers such as resource discovery and queries are likely to constitute a significant portion of the traffic in future ad hoc networks. In earlier work on ad hoc routing, randomly assigned long-lived connections have been studied. In this study we show that small transfers stress the route setup phase (vs. maintenance/repair phase) and exhibit significant different behavior than the commonlystudied long-lived transfers. Through extensive simulations, we attribute such differences to “cache ” performance. A firstorder estimation model is also developed to advocate this result. The outcome of this study strongly suggests the need to re-visit ad hoc routing protocols to address small transfers.