In-network data storage protocols for wireless sensor networks: A state-of-the-art survey

Abstract

In wireless sensor networks, the aim of storage protocols is to efficiently replicate data across nodes and to improve data collection and querying by sinks. Among them, in-network storage protocols replicate data in a set of nodes that depends on some characteristics such as network topology and geographic location. Researchers have proposed various techniques to implement in-network storage. In this article, we summarize and highlight the key ideas of existing protocols which are further classified into three categories (reactive, unstructured proactive, and structured proactive) based on topology, load balancing, transmission strategy, and reliability. Benefits and drawbacks of each protocol are studied and compared with different requirements. Finally, future research directions are provided for efficient in-network storage in wireless sensor network.

Power-saving Asynchronous Quorum-based Protocols for Maximal Neighbour Discovery

“…According to Figure 10, the quorums set of the AS-Grid(5 × 10) are as follows: {a:(0, 5,10,15,20,25,30,35,40,45,46,47,48,49), b:(0, 1,6,11,16,21,26,31,36,41,46,47,48,49), c:(0, 1,2,7,12,17,22,27,32,37,42,47,48,49), d:(0, 1,2,3,8,13,18,23,28,33,38,43,48,49), e:(0, 1,…”

“…For another example, as Figure 13 shows, quorums set of the LPS-Grid(4× 6) are as follows: {a:(0, 4,8,12,16,20,21,22), b: (1,5,9,13,17,21,22,23), c: (2,6,10,14,18,22,23,20), d: (3,7,11,15,19,23,20,21)} Similarly, if we assume that there are two nodes that want to select one of the quorum sets in a random manner and node 1 selects quorum A, then:…”

“…On the other hand, the generation and conveyance of telecommunication traffic and the growing internet data of the order of 200 exabytes per month [11] are very energy-intensive [12][13][14]. Moreover, wireless sensor networks (WSNs) normally comprise small sensors with short radio transmission range, limited onboard associated power supply, www.aetic.theiaer.org mediocre processing capability and small data storage resources [15][16]. Limited power supply constitutes the most significant constraint in WSNs [17][18].…”

A novel routing protocol considering the boundary effects for ad hoc networks

“…Routing protocols are classified into reactive, on-demand, and hybrid types. 2 On-demand routing protocols are highly concerned by researchers all over the world for their advantages, such as low routing overhead and no need for maintaining the whole network information. In on-demand routing protocols, source nodes initiate routing discovery processes by means of broadcasting routing request (RREQ) packets.…”