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Capacity of single carrier systems with frequency-domain equalization

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3 Author(s)
Tingting Shi ; State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China ; Shidong Zhou ; Yan Yao

This paper deals with the capacity behavior of single carrier modulation with frequency-domain equalization (SC-FDE) systems in broad-band multipath fading environments for the case where the channel is unknown at the transmitter and perfectly known at the receiver. The capacity performance of SC-FDE system is compared with that of orthogonal frequency-division multiplexing (OFDM) system. And the influence of the propagation environment and system parameters on capacity of these systems is studied. A useful conclusion is obtained that the expected capability of the SC-FDE is always poorer than that of OFDM in frequency-selective fading channel, and it is closer to OFDM in channel with lower delay spread. Furthermore, it is found that although the expected capacity of SC-FDE decreases with increasing delay spread, the outage probability may decrease as a result of the frequency diversity.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004