摘要: Mobile ad hoc networks (MANETs) have nodes that are dynamically and arbitrarily located. The often battery powered may behave selfishly to preserve power. A promising mechanism deal with node selfishness is use reputation methods. In this paper, we discuss some general issues current methods used mitigate selfish behavior propose a simple efficient Locally Aware Reputation System (LARS) for which the of derived by using direct observation. LARS flexible can both extreme selective selfishness.