1. INTRODUCTION
Mobile Ad hoc Network (MANET) is a decentralized, infrastructure-less network where
wireless nodes move arbitrarily. Trust is defined as a degree of belief about the behavior of
other entities. Establishing trust relationships among participating nodes is vital that their trust
value or reputation will be hurt by non-cooperative or destructive behavior. Motivation towards
trust is from assistance in decision-making to improve security and robustness, Misbehavior
detection, Adaptation to risk.