Performance optimization over channel model for a low rate wireless personal area network

Indong Yeo, Jonghyune Kim, Sunshin An

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The Low Rate Wireless Personal Network (LR-WPAN) is a new standard uniquely designed for low data rates and low energy consumption. LR-WPAN researchers are focusing extensively on the wireless technology and energy consumption, but many papers do not cover channel characterization and link quality assessment in LR-WPANs, even though we could reasonably surmise that the network performance will be optimized only when the channel and link information are provided. In this paper, we will suggest a new mechanism for performance enhancement in the presence of a time-varying channel response. First, we will regard the Link Quality Indicator (LQI) as a channel state indicator. Second, we will modify the pure CSMA-CA procedure by reflecting the LQI measurement. Finally, we roughly observe the time-varying channel, and then we assign a weight to the L2 scheduling parameter known as the Backoff Exponent (BE). This mechanism upgrades the network performance when there is a time-varying channel. This paper addresses the problem by creating an efficient scheduling scheme that is based on the channel memory. The result of an NS-2 simulation indicates an overall improvement in the effective throughput, energy consumption, and end-to-end delay.

Original languageEnglish
Title of host publication3rd International Conference on Digital Information Management, ICDIM 2008
Pages154-159
Number of pages6
DOIs
Publication statusPublished - 2008
Event3rd International Conference on Digital Information Management, ICDIM 2008 - London, United Kingdom
Duration: 2008 Nov 132008 Nov 16

Publication series

Name3rd International Conference on Digital Information Management, ICDIM 2008

Other

Other3rd International Conference on Digital Information Management, ICDIM 2008
CountryUnited Kingdom
CityLondon
Period08/11/1308/11/16

ASJC Scopus subject areas

  • Information Systems
  • Information Systems and Management

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