Patent ID: 8098650

Claim:
A routing apparatus comprising: a routing table management unit for generating a routing table by receiving interest information of a user of a mobile node, and for broadcasting the routing table through the mobile ad hoc network; an effectiveness calculation unit for calculating effectiveness values for respective paths, included in a routing table broadcasted by some other external node, based on both the interest information of the user of the mobile node and interest information of users of destination nodes of the respective paths when the routing table is received from the other external node; a storing unit for storing the generated routing table; and a routing path setting unit for setting a routing path on the basis of the routing table stored in the storage unit, wherein the routing table management unit updates the routing table using the effectiveness values for respective paths calculated by the effectiveness calculation unit, and wherein the effectiveness calculation unit calculates the effectiveness values for respective paths by using energy-aware coverage-preserving hierarchical routing (ECHR()) values calculated through matching between the interest information of the users of the destination nodes of the respective paths, included in the routing table received from the other external node, and the interest information set in the initial routing table.