Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686070
