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Hybrid TDMA/CDMA based on filtered multitone modulation for uplink transmission in HFC networks

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1 Author(s)

We present a hybrid TDMA/CDMA system for uplink transmission in multiple access networks that is based on filtered multitone modulation. We consider an application to uplink transmission in hybrid fiber/coax networks. After discussing the characteristics of the proposed system, we address the problem of initial ranging and power adjustment of unregistered stations. Finally, we introduce a new collision resolution algorithm in conjunction with FMT modulation that uses iterative identification of the competing stations to achieve high throughput on the collision channel. System performance is investigated by simulations.

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Communications Magazine, IEEE  (Volume:41 ,  Issue: 10 )