A Low-latency Routing in Ad Hoc Networks for Many Short-lived Connections

Wireless ad hoc network is expected to be integrated with wired networks and many applications will communicate over these networks transparently. Some applications need a reliable end-to-end transmission while wireless networks have less reliability than wired ones inherently. There are various ways to satisfy this demand. Many studies have been dedicated to improve the throughput of a connection over an ad hoc network. However, most of them have assumed persistent connections. This is clearly inadequate because major of connections are actually short-lived. For such connections, the routing latency in ad hoc networks is considerably long. In this paper, we propose a new routing protocol for ad hoc networks, the Lowlatency Hybrid Routing protocol (LHR). LHR is designed to be suitable for an application where many devices need to transmit small data, while it is also applicable to mobile ad hoc networks. According to the simulation results, LHR is able to establish and process more connections within a given time period than other existing ad hoc routing protocols. key words: Ad hoc network, Low latency routing, Short-lived connection