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Spectrum Estimation Methodology for Next Generation Wireless Systems

Authors
Irnich, Tim and Walke, Bernhard
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University Kontakt: Tim Irnich

In Proceedings of 11th Wireless World Research Forum, WWRF, p. 6, Oslo,Norway, 2004.
Publication Date: Jun, 2004
On page(s):6
ISBN: 3-00-013978-8

Abstract
A new methodology for calculating the spectrum demand for next generation wireless communication systems is presented1. The methodology considers a cell or cell cluster carrying the traffic of a mix of packet based services, taking the multiplexing gain of packet based traffic and the service-specific QoS parameters mean throughput, mean delay and delay percentile into account. A suitable balance between accuracy and complexity has to be found. Accordingly, two approaches of different complexity are presented. A very simple approach maps the expected offered packet traffic to the required system capacity by exploiting a characteristic of the relation between system load and system throughput that is common to all packetbased systems. A second approach is based on the analysis of a queuing system. The required system capacity is calculated for services with mean throughput and mean delay requirements. Using an additional iterative procedure also delay percentile requirements can be taken into account. The queuing approach is more complex but also significantly more accurate than the simple approach.

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Bibtex

@INPROCEEDINGS{IrWaWWRF11,
  AUTHOR          = {Irnich, T. and Walke, B.},
  TITLE           = {Spectrum Estimation Methodology for Next Generation Wireless Systems},
  YEAR            = {2004},
  MONTH           = {Jun},
  PAGES           = {6},
  ADDRESS         = {Oslo,Norway},
  BOOKTITLE       = {Proceedings of 11th Wireless World Research Forum, WWRF},
  AFFILIATION     = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
  ISBN            = {3-00-013978-8},
  ANNOTE          = {Spectrum estimation, 4G, Next Generation Wireless Systems,
                    M/G/1,
NONPRE, priorities, mean waiting time, mean IP delay, delay
                    percentile},
  URL             = {http://www.comnets.rwth-aachen.de} 
}

Letzte Änderung: 17.09.2008 11.46