NDLI: Multihop ACK-based greedy forwarding using expected transmission cost in wireless sensor networks

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Multihop ACK-based greedy forwarding using expected transmission cost in wireless sensor networks

Content Provider	ACM Digital Library
Author	Choo, Hyunseung Choi, Wook Bae, Dongju
Abstract	In this paper, we propose a multihop ACK-based greedy forwarding (MAGF) scheme that considers the asymmetrical reliability of wireless links in order to improve the reliability and efficiency of packet transmissions. Existing greedy forwarding schemes forward packets only considering the distance to a destination. In real wireless communication, however, signal strength is exponentially reduced in accordance with the distance, which results in a waste of the limited battery resource due to a large number of packet retransmissions. To solve such an inefficient packet transmission problem, many schemes have been proposed. However, they are either unrealistic due to a huge overhead of using the entire network information or inefficiency as they do not consider the asymmetric link characteristics. Our proposed MAGF uses a routing path with a minimum expected transmission cost (ETC) by considering the balance between the number of transmissions and the hop count for enhancing packet delivery rate and energy efficiency. Simulation results show that MAGF improves packet delivery rate by about 13% and energy efficiency by about 16% compared with PRRxDistance greedy forwarding (GF).
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISBN	9781450305716
DOI	10.1145/1968613.1968752
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-02-21
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Multihop Asymmetry Energy-efficiency Reliability
Content Type	Text
Resource Type	Article

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