Cdma Based Security for Warm-hole Attacks in Underwater Wireless Sensor Network System

Regular activity of the human is being extended to marine and sub-marine regions. Invention of war activity and marine research on minerals and bio-diversity is leading to install wireless sensor devices in deep underwater system. The underwater sensors and network areas are applied through a number of applications like research, water games, self-defense against enmity, finding of minerals and study of the effect of soil erosion, bio-diversity, and greenhouse effect. Marine weather is having a strong impact on the transmission system. Marine weather imposes highly corrosion, multipath fading, high delay, limiting bandwidth, multi-path fading on the transmission system. Worm-hole is one of the multi paths fading error in underwater sensor technology. A wormhole is caused by the mirror image effect of transmission system from one device to another device. Wormhole causing serious problem like fading of important data, adverse effect on the neighbor devices present in underwater system, illegal data transmission and using valuable bandwidth. To avoid the warm hole effect on under water network system this method proposes a CDMA based transmission which is having a numbering system for every device present in the network, every node is having a controller which can detect it through calculation method. This technique is an efficient error detecting technique without any overload of extra hardware device and complex protocol.