Unidirectional link problem in AODV routing protocol

Ad hoc is a kind of self organized network which is different from traditional communication system. In recent years, ad hoc network has been well developed. AODV (ad hoc on-demand distance vector) is an important protocol of ad hoc network which is recommended by IETF by its simple operation and outstanding performance. However, AODV protocol is not perfect so far, which still has some issues needed to be amended. In this contribution, a unidirectional link problem in AODV protocol is discussed and several effective solutions are proposed, and some theoretical analysis is referred for performance comparison.