7. Noise
Published Online: 14 JUL 2011
DOI: 10.1002/9781119973225.ch7
Copyright © 2011 John Wiley & Sons, Ltd
Book Title
Indoor Radio Planning: A Practical Guide for GSM, DCS, UMTS, HSPA and LTE, Second Edition
Additional Information
How to Cite
Tolstrup, M. (2011) Noise, in Indoor Radio Planning: A Practical Guide for GSM, DCS, UMTS, HSPA and LTE, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781119973225.ch7
Publication History
- Published Online: 14 JUL 2011
- Published Print: 29 JUL 2011
ISBN Information
Print ISBN: 9780470710708
Online ISBN: 9781119973225
- Summary
- Chapter
Keywords:
- noise, noise performance and noise calculations - in radio planning;
- radio link quality, not defined by absolute signal level - but by signal-to-noise ratio;
- RF planners, considering noise issue in DAS systems - on UL of link budget, as ‘black magic’;
- thermal noise, being ‘white noise’ - power distributed equally in total RF spectrum;
- reference noise level for GSM and DCS/UMTS - noise power density, frequency-independent;
- cascaded noise, passive DAS - passive cables and components, losses from base station to antenna, and vice versa;
- deploying mast-mounted amplifiers (LNAs) - in mobile systems, in UMTS deployment;
- noise power from parallel systems - two noise sources into one output;
- noise control, in cascaded systems - multiple amplifiers, and interconnecting cable;
- UMTS UL/DL performance improvement - after upgrade of passive DAS
Summary
This chapter contains sections titled:
Noise Fundamentals
Cascaded Noise
Noise Power
Noise Power from Parallel Systems
Noise Control
Updating a Passive DAS from 2G to 3G