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A Synchronous Digital Duplexing Technique for Wireless Transmission in Indoor Environments  

Park, Chang-Hwan (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.33, no.12C, 2008 , pp. 971-982 More about this Journal
Abstract
In this paper, we propose a new digital duplexing scheme, called SDD(Synchronous Digital Duplexing), which can increase data efficiency and flexibility of resource by transmitting uplink signal and downlink signal simultaneously. In order to transmit uplink data and downlink data simultaneously, the proposed SDD obtains mutual informations between AP(access point) and each SSs(subscriber station), SS and other SSs by mutual ranging procedure. These informations are used for selection of transmission time, decision of CS insertion, setting of CS length, and FFT duration resetting, etc. It is shown that the proposed SDD is appropriate for duplexing scheme in indoor environments over the conventional TDD(Time Division Duplexing) and FDD(Frequency Division Duplexing).
Keywords
SDD; OFDM; TDD; FDD; Zipper;
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