Title :
Hybrid TDMA/CDMA based on filtered multitone modulation for uplink transmission in HFC networks
Author :
Cherubini, Giovanni
fDate :
10/1/2003 12:00:00 AM
Abstract :
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.
Keywords :
code division multiple access; hybrid fibre coax networks; modulation; time division multiple access; FMT modulation; HFC networks; collision resolution algorithm; filtered multitone modulation; hybrid TDMA/CDMA system; hybrid fiber/coax networks; initial ranging; iterative identification; medium access control; multiple access networks; multiple access system; power adjustment; simulations; system performance; throughput; unregistered stations; uplink transmission; Bandwidth; Downlink; Frequency synchronization; Hybrid fiber coaxial cables; Intelligent networks; Iterative algorithms; Multiaccess communication; OFDM modulation; Time division multiple access; Timing;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2003.1235602
