DocumentCode :
383871
Title :
Resource allocation with power-shaping in TDMA-based mobile radio systems
Author :
Tralli, Velio ; Veronesi, Riccardo ; Zorzi, Michele
Author_Institution :
Dipt. di Fisica, Ferrara Univ., Italy
Volume :
1
fYear :
2002
fDate :
15-18 Sept. 2002
Firstpage :
354
Abstract :
We apply dynamic slot allocation with power-shaping to TDMA-based (pure or hybrid) mobile radio systems. We show that this technique, originally proposed by the Authors for fixed broadband wireless access systems, where interference is mitigated by the use of highly directional antennas, is able to increase the capacity even in full frequency reuse cellular systems with omnidirectional antennas. By using a set of power profiles, suitably defined here for hexagonal cells with three sectors, that limit (or shape) the power transmitted in each slot of the frame, this allocation technique partially organizes the intercell and intersector interference in the available slots and makes it partially predictable. This allows an efficient use of radio resources, when the base stations assign radio resources in an uncoordinated fashion without the need of centralized strategies requiring heavy signaling load.
Keywords :
cellular radio; code division multiple access; directive antennas; frequency allocation; multiuser channels; radiofrequency interference; time division multiple access; TDMA; base stations; directional antennas; dynamic slot allocation; fixed broadband wireless access systems; frequency reuse cellular systems; hexagonal cells; hybrid TD/CDMA; intercell interference; interference; intersector interference; mobile radio systems; omnidirectional antennas; power profiles; power-shaping; radio resources; resource allocation; signaling load; wideband cellular systems; Base stations; Directional antennas; Frequency; Interference; Land mobile radio; Multimedia systems; Resource management; Scheduling algorithm; Time division multiple access; Wideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
Type :
conf
DOI :
10.1109/PIMRC.2002.1046721
Filename :
1046721
Link To Document :
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