NDLI: An opportunistic routing for real-time data in Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Seungmin Oh Yongbin Yim Jeongcheol Lee Hosung Park Sang-Ha Kim
Copyright Year	2013
Description	Author affiliation: Dept. of Comput. Eng., Chungnam Nat. Univ., Daejeon, South Korea (Seungmin Oh; Yongbin Yim; Jeongcheol Lee; Hosung Park; Sang-Ha Kim)
Abstract	In this paper, we propose an opportunistic real-time data dissemination protocol in order to solve the transmission failure problem in error-prone WSNs. Retransmission is wellknown for recovery of transmission failure, however, this may cause the severe time delay possibly to violate the real-time requirement. To solve the problem, our protocol exploits both broadcasting nature and temporal opportunity concept. In a radio-range of a sensor node, there may be multiple neighbor nodes to satisfy the real-time requirement. By broadcasting property, all neighbors can receive a data from a node, and only each satisfying neighbor decides its relay toward the destination by using temporal selection function. The temporal function is related to the tolerable time period to be able to satisfy the realtime requirement. By giving the priority to the node with smaller tolerable time, we have more opportunities to forward toward the destination. That is, even if a node with a long tolerable time waits for the longer period of time, it still has a chance to forward with the real-time requirement. In summary, the proposed protocol attains the high reliability and real-time requirement by removing data retransmission and multiple opportunities with temporal consideration. Simulation results show that the proposed protocol is superior to the existing real-time protocols in terms of real-time data dissemination and energy consumption.
Starting Page	1157
Ending Page	1162
File Size	527494
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6554727
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Real-time systems Reliability Relays Wireless sensor networks Energy consumption Delays multipath wireless sensor networks reliability real-time data dissemination
Content Type	Text
Resource Type	Article

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