NDLI: Duplicate detectable opportunistic forwarding in duty-cycled wireless sensor networks

Content Provider	ACM Digital Library
Author	He, Yuan Liu, Yunhao Wang, Jiliang Liu, Daibo Hou, Mengshu Cao, Zhichao
Copyright Year	2016
Description	Author Affiliation: Tsinghua University, Beijing, China(Hou, Mengshu; University of electronic science and technology of china, Chengdu, China (Liu, Daibo; Liu, Yunhao); He, Yuan; Wang, Jiliang; Cao, Zhichao)
Abstract	Opportunistic routing, offering relatively efficient and adaptive forwarding in low-duty-cycled sensor networks, generally allows multiple nodes to forward the same packet simultaneously, especially in networks with intensive traffic. Uncoordinated transmissions often incur a number of duplicate packets, which are further forwarded in the network, occupy the limited network resource, and hinder the packet delivery performance. Existing solutions to this issue, e.g., overhearing or coordination based approaches, either cannot scale up with the system size, or suffer high control overhead. We present Duplicate-Detectable Opportunistic Forwarding (DOF), a duplicate-free opportunistic forwarding protocol for low-duty-cycled wireless sensor networks. DOF enables senders to obtain the information of all potential forwarders via a slotted acknowledgment scheme, so the data packets can be sent to the deterministic next-hop forwarder. Based on light-weight coordination, DOF explores the opportunities as many as possible and removes duplicate packets from the forwarding process. We implement DOF and evaluate its performance on an indoor testbed with 20 TelosB nodes. The experimental results show that DOF reduces the average duplicate ratio by 90%, compared to state-of-the-art opportunistic protocols, and achieves 61.5% enhancement in network yield and 51.4% saving in energy consumption.
Starting Page	662
Ending Page	673
Page Count	12
File Format	PDF
ISSN	10636692
Volume Number	24
Issue Number	2
Journal	IEEE/ACM Transactions on Networking (TON)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-04-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Duplicate-detectable Energy constraint Low-duty-cycled Opportunistic forwarding Wireless sensor network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Networks and Communications Software Computer Science Applications

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