Bound on mutual information for DS-CDMA spreading over independent fading channels
- 23 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 187-191 vol.1
- https://doi.org/10.1109/acssc.1997.680053
Abstract
We consider using DS-CDMA over channels which decorrelate in frequency. We allow the bandwidth to increase while maintaining a fixed total average power. The bandwidth over which we transmit is divided into several slices, each of which has its own spreading sequence. We show that for a large bandwidth DS-CDMA spreading is not advantageous when the channel truly decorrelates in frequency or when the channel bandwidth slices are correlated but not jointly estimated.Keywords
This publication has 2 references indexed in Scilit:
- Bandwidth scaling for fading channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- The capacity of discrete-time Rayleigh fading channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002