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http://dx.doi.org/10.7840/kics.2013.38A.9.810

Simultaneous Single Band Duplex System for the Spectrum Efficiency Improvement  

An, Changyoung (충북대학교 전자공학과)
Ryu, Heung-Gyoon (충북대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38A, no.9, 2013 , pp. 810-816 More about this Journal
Abstract
In this paper, we propose a SSD (simultaneous single-band duplex) system using Digital Cancellation. Also, we propose a method for Digital Cancellation when RF Cancellation is effectively performed. The proposed system has estimation frame for effective self-interference channel estimation in time-domain. The proposed system calculates signal power for selection of optimal coefficient after digital cancellation. Then, the proposed system selects coefficient of minimum signal power. Further, the proposed system uses LDPC code to minimize the effects of remaining self-interference signal. The proposed system shows BER performance of at 20dB by cancelling self-interference and iterating LDPC code. That is, the proposed system shows that the SSD communication is possible in static self-interference channel.
Keywords
SSD; full-duplex; duplex; self-interference cancellation;
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