Delay‐aware data collecting protocol for low‐duty‐cycle wireless sensor networks

Abstract

Duty-cycled technology has been introduced as an efficient way to preserve node energy and prolong network lifetime for wireless sensor networks (WSNs). However, many applications with real-time feature require that some message must be sent to the sink node within a limited time. The authors propose a novel data collecting scheme-MTDR which aims to minimise transmission delay in low-duty-cycle WSNs. In MTDR, all the nodes are assigned to the corresponding levels according to the hop count to the sink node, and calculate their minimum transmission delay to the sink node based on the shortest path structure. Finally, simulation results show that their proposed algorithm can achieve better performance compared with some related works.

Algorithm for energy consumption minimisation in wireless sensor network

“…He et al targeted the problem of transmission delay and to overcome the problem proposes an algorithm minimise transmission delay routing (MTDR). The performance of MTDR is compared with existing expected sleep latency (ESL) and shortest path route (SPR) algorithms and minimised a significant amount of delay [20]. Zhang and Li [21] used joint probability of data packet numbers and the sensor phases in various modes of wireless nodes in duty-cycled WSN.…”

A New Approach for Cluster Head Selection in Wireless Sensor Networks

“…The time delay depends on the path transmission delay, which is directly proportional to the number of hops between the sender and sink. It also depends on the waiting time spent waiting for the sink or receiver to wake up [7].…”