Link Quality Estimation for Reliable Data Dissemination in Vehicular Ad hoc Networks

The special characteristics of Vehicular Ad hoc Networks such as dynamic topology, high mobility and frequent disconnection causes major problems during data dissemination. Since, the latter requires reliable communication in low delay, effective link quality estimation is a vital issue. Motivated by these facts, several link quality based dissemination approaches have been proposed. These approaches need to be surveyed to give a complete literature review and a comprehensive comparison. Therefore, we study and survey in this paper most of proposed link quality estimation based dissemination approaches. We, also, propose a classification of link quality estimation methods and according to this, we present a comparative study and analyze the presented works. Based on our study, we propose a new dissemination approach which aims to take advantages of the analyzed approaches.