On analysis and capacity estimation of TDMA/FDMA systems with interference adaptation dynamic channel allocation

Author

Xu, Ziqiang ; Akansu, Ali N.

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

3

fYear

1998

fDate

18-21 May 1998

Firstpage

1820

Abstract

It has been shown by simulation results that the interference adaptation dynamic channel allocation (IA-DCA) strategy is a promising channel allocation method in TDMA/FDMA systems. However, theoretical analysis of IA-DCA has not been thoroughly studied in the literature. The main difficulty is how to represent the interference in the IA-DCA environment. In this paper, the computation of both downlink and uplink co-channel interference in the IA-DCA environment is investigated. A framework for the analysis of 2-way balanced IA-DCA schemes is proposed. An asymptotic upper performance bound for the IA-DCA strategy is derived. The bound is used to estimate the maximum capacity enhancement the IA-DCA method can provide over the fixed channel allocation. Both a deterministic propagation model and a lognormal shadowing model are considered

Keywords

cellular radio; channel allocation; channel capacity; cochannel interference; frequency division multiple access; time division multiple access; IA-DCA strategy; TDMA/FDMA systems; asymptotic upper performance bound; capacity estimation; cellular radio networks; deterministic propagation model; downlink co-channel interference; interference adaptation dynamic channel allocation; lognormal shadowing model; maximum capacity enhancement; simulation results; uplink co-channel interference; Channel allocation; Computational modeling; Downlink; Frequency division multiaccess; Interchannel interference; Interference constraints; Multiaccess communication; Radiofrequency interference; Shadow mapping; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.686070

Filename

686070