Title :
Improved Erlang capacity of combined carrier channel assignment for hybrid FDMA/CDMA systems supporting voice and data services
Author :
Koo, Insoo ; Yang, Jeongrok ; Kim, Kiseon
Author_Institution :
Multimedia Commun. Syst. Lab., Kwang-Ju Inst. of Technol., South Korea
Abstract :
The authors focus on the evaluation of the Erlang capacity for hybrid FDMA/CDMA systems supporting voice and data services with two channel allocation schemes; the independent carrier channel assignment (ICCA) scheme and the combined carrier channel assignment (CCCA) scheme. As a result, the CCCA scheme shows considerable Erlang capacity improvement with an increase of carriers of hybrid FDMA/CDMA. For a fixed number of carriers, the Erlang capacity of CCCA is almost the same as that of ICCA with small channel elements (CEs). However, CCCA outperforms ICCA with an increase of CEs
Keywords :
cellular radio; channel allocation; code division multiple access; frequency division multiple access; integrated voice/data communication; CCCA scheme; Erlang capacity; ICCA scheme; channel allocation schemes; channel elements; combined carrier channel assignment; data services; hybrid FDMA/CDMA systems; independent carrier channel assignment; voice services; Bandwidth; Base stations; Channel allocation; Circuits; Frequency division multiaccess; Multiaccess communication; Narrowband; Radio frequency; Robustness; Wideband;
Conference_Titel :
TENCON 2001. Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology
Print_ISBN :
0-7803-7101-1
DOI :
10.1109/TENCON.2001.949597
