Battery Power Efficiency of PPM and OOK in Wireless Sensor Networks

Abstract

Sensor nodes in wireless sensor networks (WSNs) are often expected to operate on batteries for a long period of time. Battery power-efficiency is a critical factor dictating the lifetime of WSNs. In this paper, we compare two pulse-based modulations, namely pulse position modulation (PPM) and on-off keying (OOK), both of which are suitable for WSNs due to their low complexity transceivers. The comparison is based on a general model that integrates typical WSN transmission and reception modules with realistic nonlinear battery models. We analyze and compare the battery power efficiency of PPM and OOK using coherent detection, and with bit error rate (BER) and cutoff rate criteria. Our results reveal that in sparse WSNs, PPM is more battery power-efficient. In dense WSNs, OOK outperforms PPM. In addition, the battery power-efficiency of OOK increases as the required cutoff rate decreases.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA490450

Entities

People

  • Ananthram Swami
  • Fengzhong Qu
  • Liuqing Yang

Organizations

  • University of Florida

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Bandwidth
  • Channel Models
  • Data Rate
  • Design Criteria
  • Detection
  • Detectors
  • Energy Consumption
  • Frequency Shift
  • Modulation
  • Networks
  • Probability
  • Sensor Networks
  • Signal Processing
  • Simulations
  • Transmitters
  • Wireless Sensor Networks

Readers

  • Computer Networking
  • Radio communications and signal processing.

Technology Areas

  • AI & ML