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Adaptive Guard Symbol Insertion Method for One-Cell Reuse TDMA Cellular Systems
Seiichiro HORIKAWA Osamu MUTA Yoshihiko AKAIWA
IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
TDMA, one-cell reuse, adaptive guard symbol insertion, co-channel interference suppression,
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In this paper, we propose an adaptive guard symbol insertion method for one-cell reuse TDMA cellular systems in which co-channel interference is reduced by adaptively selecting the best transmit-pulse waveform with different guard (null-) symbols according to the average error power (AEP) corresponding to signal-to-interference and noise power ratio (SINR), even though the same frequency channel is used at all base stations. Using the proposed system, current TDMA-based systems are readily extensible to one-cell reuse systems, which achieves higher spectrum efficiency. The system capacity is enhanced using the proposed method; moreover, the required qualities such as blocking probability and outage probability are retained.