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공과대학
전자전기공학전공
Journal papers
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Advanced hybrid OFDM system with multi-layer TDD architecture
Title
Advanced hybrid OFDM system with multi-layer TDD architecture
Authors
Shin S.-J.
;
Kim M.-R.
;
Yu H.-I.
;
Kang Y.-J.
;
Kim N.-M.
;
Shin O.-S.
Ewha Authors
김낙명
SCOPUS Author ID
김낙명
Issue Date
2007
Journal Title
IEEE Vehicular Technology Conference
ISSN
1550-2252
Citation
IEEE Vehicular Technology Conference, pp. 2712 - 2716
Indexed
SCOPUS
Document Type
Conference Paper
Abstract
Various hybrid duplexing techniques have been proposed to accommodate asymmetric multimedia services for next generation cellular systems. Many of them apply time division duplexing (TDD) technology in the inner cell region and frequency division duplexing technology in the outer region. One concern for such arrangement would be mitigating the intercell interference. They need, however, to use a fairly long guard time between uplink and downlink portion of a frame, because of the propagation time from the base station (BS) to the farthest mobile station (MS) in the TDD region. Such inefficiency becomes exaggerated when the raw data rate increases. We propose a multi-layer TDD architecture which includes several concentric TDD regions having different guard times. The proposed architecture has been proven by computer simulation that it has much smaller average delay when there is a mixture of multimedia traffic, and it accommodates more traffic having with different requirements of maximally allowable delay. © 2007 IEEE.
DOI
10.1109/VETECS.2007.557
ISBN
1424402662
9781424402663
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