Title :
Hierarchical wideband multicarrier CDMA systems: reverse link analysis
Author :
Kim, John Y. ; Stüber, Gordon L.
Author_Institution :
Amperion Inc., Andover, MA, USA
fDate :
7/1/2003 12:00:00 AM
Abstract :
The reverse link performance of hierarchical wideband multicarrier code-division multiple-access (MC-CDMA) systems is studied. An 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. The effects of microcell Nakagami fading and power control error are also studied.
Keywords :
code division multiple access; fading channels; hierarchical systems; microcellular radio; multipath channels; MC-CDMA system; equal narrow subbands; hierarchical wideband multicarrier CDMA systems; microcell traffic; multipath fading; multiple signal waveforms; narrowband interference; power control error; reverse link analysis; system bandwidth; Bandwidth; Fading; Interference; Microcell networks; Multiaccess communication; Multicarrier code division multiple access; Narrowband; Power system protection; Robustness; Wideband;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2003.814336
