Capacity enhancement in digital cellular systems using variable bitrate speech coding

@article{Mammen1997CapacityEI,
  title={Capacity enhancement in digital cellular systems using variable bitrate speech coding},
  author={C. P. Mammen and Bhaskar Ramamurthi},
  journal={Proceedings of ICC'97 - International Conference on Communications},
  year={1997},
  volume={2},
  pages={735-739 vol.2}
}
In this paper, we consider the use of variable bitrate (VBR) speech coding to reduce co-channel interference and thus increase the capacity of cellular systems. We propose the so-called VBR-FEC scheme in which a variable-rate forward error-correcting code (FEC) is used in conjunction with a VBR speech coder. We then present an analysis of the enhancement in capacity that can be expected in the case of a CDMA system employing the proposed VBR-FEC scheme. Next, we present a design example using a… CONTINUE READING

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