NDLI: Energy Efficiency in Ad-hoc Wireless Networks with Two Realistic Physical Layer Models

Content Provider	IEEE Xplore Digital Library
Author	Wei Feng Elmirghani, J.M.H.
Copyright Year	2009
Abstract	Most nodes of ad-hoc wireless networks are batterypowered, therefore energy efficiency is an important concern in ad-hoc networks. Most transmission and energy consumption models in ad-hoc wireless networks assume an ideal physical layer model, where the probability of the packet being eceived by the neighbour is 100% once the neighbour node is within the transmission range of the transmitter. In this paper, we investigate the Rayleigh fading and ognormal fading scenarios to derive the optimal transmission range in ad-hoc wireless networks. In this paper, based on the hop-by-hop retransmissions (HHRs) model, where a packet is retransmitted between two nodes until it is received and acknowledged correctly, the relationship between expected energy consumption and the distance between two nodes is derived in the two-node model. In an equal-hop end-to-end multihop transmission model, the relationship between the total expected energy consumption, the range of each hop, and the transmission power of each node is derived and analysed. It is shown that the minimum energy consumption can be achieved by adjusting both the transmission power and the range of each hop. Furthermore, based on a one hop model, an efficiency function is proposed based on the one hop progress and one hop energy consumption. The relationship between expected one hop energy consumption, the range of the hop, and the nodes transmission power has been derived and the results show that, these two relationships derived through different methods are the same, which validates the relationship.
Starting Page	401
Ending Page	406
File Size	240218
Page Count	6
File Format	PDF
ISBN	9780769537863
DOI	10.1109/NGMAST.2009.30
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-15
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	transmission power Energy consumption Terms energy efficiency Rayleigh channels Physical layer Throughput Ad hoc networks Transceivers Lognormal fading Next generation networking ad-hoc networks Wireless networks Spread spectrum communication Energy efficiency Rayleigh fading
Content Type	Text
Resource Type	Article

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