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A Synchronous Digital Duplexing Technique for OFDMA-Based Indoor Communications

Chang-Hwan PARK, Yo-Han KO, Yeong-Jun KIM, Kyung-Won PARK, Won-Gi JEON, Jong-Ho PAIK, Seok-Pil LEE, Yong-Soo CHO

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Summary :

In this paper, we propose a new digital duplexing scheme, called synchronous digital duplexing (SDD), which can increase data efficiency and flexibility of resource by transmitting uplink signal and downlink signal simultaneously in wireless communication. In order to transmit uplink and downlink signals simultaneously, the proposed SDD obtains mutual information among subscriber stations (SSs) with a mutual ranging symbol. This information is used for selection of transmission time, decision on cyclic suffix (CS) insertion, determination of CS length, and re-establishment of FFT starting point.

Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.7 pp.2492-2495
Publication Date
2009/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E92.B.2492
Type of Manuscript
LETTER
Category
Transmission Systems and Transmission Equipment for Communications

Authors

Keyword

SDD,  OFDM,  TDD,  FDD,  Zipper,  mutual ranging