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A Resource Management Technique for OFDM-based Digital Duplex Systems  

Park, Chang-Hwan (School of Electrical & Electronic Engineering, Chung-Ang University)
Kim, Moo-Chul (School of Electrical & Electronic Engineering, Chung-Ang University)
Ko, Yo-Han (School of Electrical & Electronic Engineering, Chung-Ang University)
Park, Kyung-Won (Advanced Mobile Technology Research Center, Korea Electronics Technology Institute)
Jeon, Won-Gi (Advanced Mobile Technology Research Center, Korea Electronics Technology Institute)
Paik, Jong-Ho (Advanced Mobile Technology Research Center, Korea Electronics Technology Institute)
Lee, Seok-Pil (Broadcasting.Communication Convergence Research Center, Korea Electronics Technology Institute)
Cho, Yong-Soo (School of Electrical & Electronic Engineering, Chung-Ang University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.12C, 2009 , pp. 1131-1137 More about this Journal
Abstract
In this paper, a resource management technique for digital duplexing (DD) systems using orthogonal frequency division multiple access (OFDMA) is proposed. The proposed technique can reduce the dynamic range of the signal received at the subscriber station (SS) and minimize the effects of inter-symbol interference (ISI) and inter-carrier interference (ICI) due to the time difference of arrival (TDoA) without using a cyclic suffix. It is shown by computer simulation that the proposed technique can reduce the number of bits for an analog-to-digital converter (ADC) and increase the signal-to-interference and noise ratio (SINR) significantly.
Keywords
Digital Duplex; SDD; TDoA; Grouping;
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