NDLI: Spectrum sharing for frequency hopped CDMA systems with overlaying cellular structures

Content Provider	IEEE Xplore Digital Library
Author	Li-Chun Wang Kuan-Jiin Shieh
Copyright Year	2003
Description	Author affiliation: Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan (Li-Chun Wang; Kuan-Jiin Shieh)
Abstract	This paper analyzes the uplink capacity of a frequency hopped CDMA system with spectrum sharing between a hot spot microcell embedded in an overlaying macrocell. We investigate how frequency hopping can function together with power control in order to allow the two tiers in the CDMA hierarchical cellular system. We consider random frequency hopping (RFH) and dynamic frequency hopping (DFH) combined with three power management methods: 1) signal strength based dynamic power control (PC); 2) static power setting with different maximum transmit power constraints (SPS); and 3) no power control (NPC). Through analysis and simulation, we demonstrate that when employing either the SPS or the PC methods, frequency sharing with DFH outperforms frequency sharing with RFH in terms of system capacity. Both frequency sharing schemes provide larger capacity than splitting frequency band between macrocells and microcells. However, without using any power management methods, only frequency sharing with DH can still perform better than the frequency splitting approach. In some cases frequency sharing with RFH may even have lower capacity than frequency splitting.
Starting Page	1945
Ending Page	1949
File Size	309632
Page Count	5
File Format	PDF
ISBN	0780377575
ISSN	10903038
DOI	10.1109/VETECS.2003.1207164
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-22
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency Multiaccess communication Microcell networks Macrocell networks Power control Energy management Power system management Power system modeling Analytical models Interference
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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