Publication detail

Energy efficient relay placement in dual hop 802.15.4 networks

CHANDRA, A. BISWAS, S. GHOSH, B. BISWAS, N. BRANTE, G. DEMO SOUZA, R.

Original Title

Energy efficient relay placement in dual hop 802.15.4 networks

Type

journal article in Web of Science

Language

English

Original Abstract

IEEE 802.15.4 has emerged as a popular standard for short range wireless sensor networks used in industrial, military, health, and environmental sectors. The limited lifetime of such networks is one of the critical design challenges. This paper e xamines the how relaying through intermediate sensor nodes can enhance the lifetime of an 802.15.4 network. In particular, novel energy consumption models for both AF and DF relays have been developed. Different relay gain scaling mechanisms and forwarding strategies under each of the relay categories were also considered and their energy efficiencies were compared. For every relaying protocol, it was found that there exists an optimum location where energy saving is maximum and this location is not necessarily different for different modes. In summary, it has been observed that the optimum location for AF relays is the equidistant point from source and destination. In contrast, the optimal location for DF relays is closer to source. The effect of different PHY level (outage probability, path loss) and MAC level parameters (frame length) on the energy efficiency are also studied.

Keywords

IEEE 802.15.4, Wireless relay, Amplify-and-forward (AF), Decode-and-forward (DF), Average power scaling (APS), Instantaneous power scaling (IPS), Energy consumption, Optimum location

Authors

CHANDRA, A.; BISWAS, S.; GHOSH, B.; BISWAS, N.; BRANTE, G.; DEMO SOUZA, R.

RIV year

2014

Released

1. 4. 2014

ISBN

0929-6212

Periodical

WIRELESS PERSONAL COMMUNICATIONS

Year of study

75

Number

4

State

Kingdom of the Netherlands

Pages from

1947

Pages to

1967

Pages count

21

BibTex

@article{BUT112129,
  author="Aniruddha {Chandra} and Sankalita {Biswas} and Biswajit {Ghosh} and Nilanjan {Biswas} and Glauber {Brante} and Richard {Demo Souza}",
  title="Energy efficient relay placement in dual hop 802.15.4 networks",
  journal="WIRELESS PERSONAL COMMUNICATIONS",
  year="2014",
  volume="75",
  number="4",
  pages="1947--1967",
  doi="10.1007/s11277-013-1447-7",
  issn="0929-6212"
}