The DEEC and EDEEC Heterogeneous WSN Routing Protocols

Wireless Sensor Networks are autonomic nodes disseminated in a large area of interest. These small units are capable of taking various measurements of their environment and sending them to distant base stations (BS) for further scheduling. Typical WSNs are composed of a great number of nodes, which have elementary energies and resources. This paper discusses the heterogeneous protocols of wireless sensor networks by targeting particularly two heterogeneous WSN routing protocols DEEC and EDEEC, which have several common characteristics, however DEEC is a protocol with two energy levels while EDEEC determines three energy levels. Some comparisons between the DEEC and the EDEEC heterogeneous WSN routing protocols are made and discussed in this paper. Three factors characterize the WSN Heterogeneity: The amount of initial energies, the signal power and the computational resources. In this paper, only energy aspect is considered.