Title :
Hierarchical wideband multicarrier CDMA systems
Author :
Kim, John Y. ; Stüber, Gordon L.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
Hierarchical wideband multicarrier CDMA (MC-CDMA) systems are studied. A MC-CDMA system divides the system bandwidth into several equal narrow subbands that are used to transmit multiple signal waveforms in parallel. MC-CDMA systems are known to be robust to multipath fading and narrowband interference. We propose a hierarchical MC-CDMA system where the microcell(s) occupies a fraction of the available subbands. It is shown that such an architecture is a viable way of supporting microcell traffic while protecting the existing macrocell traffic
Keywords :
code division multiple access; fading channels; interference suppression; microcellular radio; multipath channels; telecommunication traffic; hierarchical wideband MC-CDMA; microcell traffic; multicarrier CDMA; multipath fading; multiple signal waveforms; narrowband interference; Bandwidth; Fading; Interference; Microcell networks; Multiaccess communication; Multicarrier code division multiple access; Narrowband; Protection; Robustness; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956519
