Multipath Routing in Wireless Sensor Networks: Survey and Research Challenges

Abstract

A wireless sensor network is a large collection of sensor nodes with limited power supply and constrained computational capability. Due to the restricted communication range and high density of sensor nodes, packet forwarding in sensor networks is usually performed through multi-hop data transmission. Therefore, routing in wireless sensor networks has been considered an important field of research over the past decade. Nowadays, multipath routing approach is widely used in wireless sensor networks to improve network performance through efficient utilization of available network resources. Accordingly, the main aim of this survey is to present the concept of the multipath routing approach and its fundamental challenges, as well as the basic motivations for utilizing this technique in wireless sensor networks. In addition, we present a comprehensive taxonomy on the existing multipath routing protocols, which are especially designed for wireless sensor networks. We highlight the primary motivation behind the development of each protocol category and explain the operation of different protocols in detail, with emphasis on their advantages and disadvantages. Furthermore, this paper compares and summarizes the state-of-the-art multipath routing techniques from the network application point of view. Finally, we identify open issues for further research in the development of multipath routing protocols for wireless sensor networks.

Flexible Disjoint Multipath Routing Protocol Using Local Decision in Wireless Sensor Networks

“…또한, 네트워크의 트래픽 부하를 분산시 켜 높은 수준의 데이터 전송률을 제공할 수도 있다 [1,[7][8][9] . 그러나 다중경로 라우팅에서 중요한 이슈 중 에 경로의 중첩이나 경로 간 간섭 문제를 다루기 위 해서는 노드, 링크, 무선 분리와 같은 분리형 다중 경로의 구축과 이를 이용한 강건한 라우팅이 필요하 다 [9,10] . 구가 필요하다 [6,10] .…”

“…그러나 다중경로 라우팅에서 중요한 이슈 중 에 경로의 중첩이나 경로 간 간섭 문제를 다루기 위 해서는 노드, 링크, 무선 분리와 같은 분리형 다중 경로의 구축과 이를 이용한 강건한 라우팅이 필요하 다 [9,10] . 구가 필요하다 [6,10] . 최근 이를 위한 연구들도 진행되 정보를 얻을 수 있다 [16] .…”

Energy efficiency in wireless sensor networks: A top-down survey

“…Multipath routing protocols also enhance network reliability by providing multiple routes, which enables the network to recover faster from a failure, whereas in single path schemes, when a node runs out of power, a new route must be recomputed. The interested reader can consult [101] for a recent survey of multipath routing protocols for WSNs.…”

An Optimized QoS-based Multipath Routing Protocol for Wireless Sensor Networks

“…This process enhances the reliability with minimum latency of the network. This motivated us to employ the concept of multipath routing for reliable transmission, which reduces the control overhead for route discovery and increases the throughput of the system [9].…”