Designing a lifetime-maximization routing in wireless sensor networks poses a great challenge mainly due to unreliable wireless links and limited power supply. The lifetime maximization can be achieved by EFFORT which is an opportunistic routing where the path diversity and the improvement of transmission reliability is improved. Besides, asynchronous sleep-wake scheduling is an effective mechanism named ANYCAST to reduce energy consumption by appropriately arranging sensor nodes to sleep. In this paper, the authors exploit two methods called EFFORT and ANYCAST to maximize the network lifetime in WSN.