Main Article Content
Energy is the major constraint in wireless sensor network. In wireless sensor network with static mobile collector (SNSMC),static nodes located near to sink consume more energy, since the nodes relay the data collected by sensor nodes far away from the sink. The battery drained in short time. This problem is resolved by the MMC-WSN method. While simplifying the routing process, proposing an energy-efficient routing technique based on cluster based method for mobile sink is preferred. First part ,the selection of cluster head (CH) in cluster based method made periodically according to their residual energy and in second part the mobile sink moves across the sensing field and directly collects data from cluster heads and returns to back to initial site in a specific sequence based on spanning graphs. The spanning graph includes the shortest search path for the MS. Finally, a tour-planning algorithm is used on the basis of the spanning graph. An energy efficient routing technique (EFR) in WSNs among obstacles uses the shortest route. In this way, the mobile sink retrieves all detected knowledge among a given time and sends to base station which reduces the packet delay and energy-consumption and WSNs.