A Survey Multihop and Geographic Opportunistic Routing Protocol in Wireless Sensor Network

Wireless Sensor Networks (WSN) are networks that consist of sensors which are distributed in an ad hoc manner. These sensors work with each other to sense some physical phenomenon and then the information gathered is processed to get relevant results. Wireless sensor networks consist of protocols and algorithms with self-organizing capabilities. It use broadcast nature to communicate with other sensors & collect information, process it and send it to base station. Opportunistic routing is based on the use of broadcast transmissions to improve the network throughput and increases transmission reliability as compare to traditional routing. This is usually achieved by ordering the forwarding nodes according to some criteria. In opportunistic routing, intermediate nodes take participation to packet forwarding in a localized and consistent manner. This paper gives an overview on different Multihop and Geographic Opportunistic routing protocol which use different metric to efficiently deliver a packet from source to destination which either minimize Energy Consumption, End to End delay and Increases the throughput.