Diversity and cooperative communications in body area networks

Diversity and cooperative communications in body area networks

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Advances in Body-Centric Wireless Communication: Applications and state-of-the-art — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

In this chapter, we investigate diversity and cooperative communications, and particularly cooperative diversity, for body-centric communications in wireless body area networks (BANs). Cooperative diversity for BANs is vitally important for required communications reliability, as well as increasing network and sensor lifetime by potentially reducing energy consumption, as will be shown here. We describe what is meant by cooperative communications and cooperative diversity, including a brief survey of the state-of-the-art. Description and analysis of the benefits of cooperative diversity in BANs is mainly with respect to the physical layer, but there is also some brief discussion of the MAC layer and network layer. In terms of cooperative receive diversity, feasible in IEEE 802.15.6 Standard compliant BAN, several cooperative receive combining techniques are described, which are all beneficial over single-link communications in terms of firstand second-order statistics. A simple, practical, technique of switch-and-examine combining shows good performance in terms of important metrics, and this can be further enhanced when combined with a simple “sample-and-hold” transmit power control, which can help reduce energy consumption for sensor radios.

Chapter Contents:

  • Abstract
  • 2.1 Introduction
  • 2.2 Cooperative on-body communications - illustrations
  • 2.3 General overview of cooperative communications
  • 2.4 State-of-the-art in BAN literature
  • 2.4.1 Co-located spatial diversity in BANs
  • 2.4.2 Cooperative diversity
  • 2.5 Experimental method, gaining data for studies of cooperative communications
  • 2.6 Coded GFSK on-body communications with cooperative diversity
  • 2.6.1 System model for coded GFSK CoBANs
  • 2.6.2 Performance analysis
  • 2.7 Outage analysis, cooperative selection combining and maximum-ratio combining
  • 2.8 Implementation of cooperative selection and maximum-ratio combining
  • 2.8.1 Single-link fading statistics
  • 2.8.2 Performance analysis
  • Analysis of outage probability
  • 2.8.3 Analysis of second-order statistics
  • 2.9 Cooperative diversity with switched combining
  • 2.9.1 Switched combining - implementation
  • 2.9.2 Theoretical performance
  • 2.9.3 Analysis of outage probability
  • Optimum hST
  • Overall outage probability performance
  • Outage probability performance at particular hub positions
  • Outage probability performance - empirical compared with theoretical
  • 2.9.4 Switching rate analysis
  • 2.10 Cooperative switched diversity with power control
  • 2.10.1 Transmit power control using "sample-and-hold" prediction
  • 2.10.2 First- and second-order statistics
  • 2.10.3 Performance analysis
  • 2.11 Conclusion
  • References

Inspec keywords: telecommunication network reliability; body area networks; diversity reception; cooperative communication

Other keywords: wireless body area network; body-centric communications; diversity communication; sample-and-hold transmit power control; single-link communication; cooperative receive combining technique; second-order statistics; BAN; first-order statistics; MAC layer; switch-and-examine combining technique; communication reliability; cooperative receive diversity; energy consumption; IEEE 802.15.6 standard; cooperative communication

Subjects: Reliability; Radio links and equipment; Biomedical communication

Preview this chapter:
Zoom in

Diversity and cooperative communications in body area networks, Page 1 of 2

| /docserver/preview/fulltext/books/te/pbte065e/PBTE065E_ch2-1.gif /docserver/preview/fulltext/books/te/pbte065e/PBTE065E_ch2-2.gif

Related content

This is a required field
Please enter a valid email address