Error Analysis of Time Synchronization in WSNs
Feng Hongxia Zhou Ying (Beijing University of Posts and Telecommunications, Beijing 100876)
Non-deterministic delay in message transmission is the significant factor affecting the accuracy of time synchronization in wireless sensor networks. Several existing time synchronization protocols are classified and studied. The errors of these different protocols are analyzed in detail based on the decomposition of the message delivery delays. Different time synchronization protocols should be designed to meet various situations considering the application field, the accuracy required and lifetime etc..