SURVEY ON FAULT DIAGNOSIS IN MANETs

AbstractRecent technological advancements have led to the popularity of mobile devices, which can dynamically form wireless networks. Unfortunately, mobile devices are vulnerable to failure because of various factors, including physical damage due to deployment in harsh environmental conditions, limited energy and malicious attacks. Node faults may be frequent in a mobile ad-hoc network. With the advent of modern computer networks, fault diagnosis has been a focus of research activity and has become a critical need to guarantee robust service for various applications. Many techniques have been suggested to solve this problem but they still cannot satisfy the special needs for MANETs. In this paper we consider the fault diagnosis problem in MANETs, i.e. the problem of identifying faulty host by fault –free ones. This paper reviews the history of fault diagnosis in networks. This survey integrates the vast amount of research efforts that have been produced in this field, from the earliest theoretical models to new promising applications.