NDLI: Spectrum efficiency evaluation for different wireless technologies based on traffic modeling

Content Provider	IEEE Xplore Digital Library
Author	Ball, C.F. Ivanov, H.K.
Copyright Year	2005
Description	Author affiliation: Commun. Mobile Networks, Siemens AG, Munich (Ball, C.F.; Ivanov, H.K.)
Abstract	Channel capacity and spectrum efficiency are widely used to compare the performance of different wireless technologies in cellular packet data networks. Recent studies revealed strong impact of traffic modeling on these key performance indicators. In this paper two generic traffic models are used to evaluate the spectrum efficiency for widespread GSM/EDGE and the upcoming new broadband OFDM IEEE 802.16 WiMax system. The first traffic model assumes an equal mean packet data call duration (EMPC-D) whereas the second one assumes an equal mean packet call data volume (EMPC-V) per subscriber. The evaluation procedure is based on a newly proposed combined analytical/geometric approach for rapid performance estimation in cellular packet data networks. The results obtained from the derived analytical formulas have been verified and confirmed by numerical computations and detailed system level simulations. The study of GSM/EDGE and mobile WiMax in 1times3 reuse as well as WiMax applied to fixed broadband wireless access (BWA) in 1times1 reuse shows a considerable difference of 40% to 60% in terms of spectrum efficiency between both traffic models. The comparison of mobile WiMax with GSM/EDGE reveals a moderate performance advantage for the new broadband OFDM system in the order of 20%-40% higher spectrum efficiency. BWA WiMax, however, provides a three-fold capacity gain compared to mobile WiMax
Starting Page	2055
Ending Page	2061
File Size	5281812
Page Count	7
File Format	PDF
ISBN	9783800729098
DOI	10.1109/PIMRC.2005.1651801
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-11
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Traffic control WiMAX Telecommunication traffic GSM Cellular networks OFDM Channel capacity Performance analysis Computational modeling Analytical models WiMax Channel Capacity Spectrum Efficiency EDGE IEEE802.16
Content Type	Text
Resource Type	Article

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