Hexagonal Two Tier Data Dissemination model for large scale wireless sensor networks

In wireless sensor networks new challenges appear when we target a large scale sensor network. The existing approaches suggest that each sink propagates its location continuously through the whole sensor field to keep the entire sensor modes updated with the direction of forwarding future data reports. The scalability problems appear when multiple mobile sinks send query request. This will lead to both increase of collisions in wireless transmission and excessive power consumption in battery operated sensor nodes. Hexagonal TTDD approach provides high efficiency in scalable data dissemination from multiple sources to multiple mobile sinks. Each source builds its own hexagonal grid structure and the sinks send their data query within local cells which will enable them to continuously receive data while moving. The performance of hexagonal TTDD evaluated through detailed analysis.