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http://dx.doi.org/10.7840/kics.2015.40.11.2131

Performance Evaluation and Signal Analysis of In-Band Full-Duplex System with ADC Effect  

An, Changyoung (Department of Electronics Engineering, Chungbuk National University)
Ryu, Heung-Gyoon (Department of Electronics Engineering, Chungbuk National University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.11, 2015 , pp. 2131-2141 More about this Journal
Abstract
In this paper, we analyze ADC effect in IBFD system. Also, we design IBFD system with ADC effect, and evaluate BER performance of the system according to power of self-interference. Firstly, we describe a fundamentals of general IBFD system. And then we calculate and analyze characteristics of desired signal before and after ADC when residual self-interference is added to desired signal after RF cancellation. In this calculation, we have confirm some conditions for selection of # of ADC bit. Finally, we design IBFD system with ADC effect, and evaluate BER performance of the system by using Simulink simulation tool. As simulation results, we have confirmed that when power of residual self-interference is high before ADC, IBFD system must use high-bit ADC for decreasing quantization step. Also, we have confirmed that quantization step should be lower than one-third of amplitude of desired signal for effective communication with good performance.
Keywords
IBFD; ADC; quantization step; self-interference; SIC;
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Times Cited By KSCI : 1  (Citation Analysis)
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