A survey of power-efficient gathering of sensor information system based routing protocols of wireless sensor networks

Energy consumption has to be considered when developing energy-efficient routing algorithms, which has been a challenging issue in the field of WSNs. The idea of LEACH is dynamic clustering that brings extra overhead, such as head changes and advertisements, which may diminish the gain in energy consumption. Moreover, PEGASIS a near optimal chain-based protocol proposed, it was an improvement over LEACH protocol to extend the network lifetime. However, PEGASIS data transmission will create time-delay and, the probability of long chain is always high because of the limitations of greedy algorithm approach for such shortcomings, many protocols was proposed by researchers recently improved algorithms based on PEGASIS such as PEG-Ant, PDCH and PCC et al. Among them, EEPB, and IEEPB was proposed. In this paper, a survey of some routing protocols that are classified based on PEGASIS topology was conducted, and conclude with some open research problems for further research. © 2012 IFSA.