DFT-MSN: The Delay/Fault-Tolerant Mobile Sensor Network for Pervasive Information Gathering

Abstract— This paper focuses on the Delay/Fault-Tolerant Mobile Sensor Network (DFT-MSN) for pervasive information gathering. We develop simple and efficient data delivery schemes tailored for DFT-MSN, which has several unique characteristics such as sensor mobility, loose connectivity, fault tolerability, delay tolerability, and buffer limit. We first study two basic approaches, namely, direct transmission and flooding. We analyze their performance by using queuing theory and statistics. Based on the analytic results that show the tradeoff between data delivery delay/ratio and transmission overhead, we introduce an optimized flooding scheme that minimizes transmission overhead in flooding. Then, we propose a simple and effective DFT-MSN data delivery scheme, which consists of two key components for data transmission and queue management, respectively. The former makes decision on when and where to transmit data messages based on the delivery probability, which reflects the lik...

• Type: Conference
• Year: 2006
• Where: INFOCOM
• Authors: Yu Wang, Hongyi Wu
• Keywords: Communications, Data Delivery Scheme, DFT-MSN Data Delivery, INFOCOM 2006, Transmission Overhead