Communication techniques for wireless sensor networks using distributed universal compaction algorithms

In this paper novel distributed universal compaction algorithm for support of multipoint to point or point to point transmission in opposite direction is presented. Most of the energy needed for executing the algorithm is used in receiving (supportive) node, which is supposed to have plenty of energy for transmission. It generates appropriate (supportive) sequence, which is received by a supported node with limited energy resources. The supported node when it needs to transmit stored information towards the supportive node sends a short message (in extreme case only one pulse) in agreed time point after it discovers a string in the supportive sequence, which is identical to a prefix of the string of stored data, which waits for transmission towards the supportive node. Results of simplified simulation experiments are presented as well. They give proof of the concept for point to point communication. Possible application in Un-attended WSN in order to increase security (help to hide Wireless Sensors) or in Wireless Passive Sensor Network in order to increase WSN lifetime are viable.