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Subcarrier Block Power Control for Adaptive Downlink OFDM with Frequency Spreading and Equalization  

Kim Nam-So (모빌링크텔레콤연구소)
Cho Sung-Ho (모빌링크텔레콤연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.3A, 2006 , pp. 214-220 More about this Journal
Abstract
In this paper, we propose the transmit power controlled adaptive modulated OFDM with frequency symbol spreading and equalization(TPC-AMS/FSS-OFDM) system. In the transmitter of the TPC-AMS/FSS-OFDM, each SP transformed signal is spread by orthogonal spreading codes and combined, so the detected signals obtain the same SINR(signal interference to noise ration) for each frequency symbol spreading block. In this case, we can assign the same modulation level and transmit power for each frequency symbol spreading block. Thus, the proposed system provides the increased throughput performance with reducing the total transmit power, FBI and MLI.
Keywords
Adaptive; MLI; FBI; Frequency symbol spreading; Subcarrier block; Equalization;
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