One‐cell reuse TDMA system using OFDM‐based adaptive modulation and multilevel transmit power control schemes

One‐cell reuse TDMA system using OFDM‐based adaptive modulation and multilevel transmit power control schemes

OFDM AMS/MTPC (OFDM‐based Adaptive Modulation Scheme with Multilevel Transmit Power Control) using multilevel transmit power control schemes to set the modulation levels and transmitted power of each subcarrier of an OFDM (Orthogonal Frequency Division Multiplexing) system can significantly improve...

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Veröffentlicht in:Electronics & communications in Japan. Part 1, Communications Communications, 2005-12, Vol.88 (12), p.50-60
Hauptverfasser: Nakanishi, Toshiyuki, Sampei, Seiichi, Morinaga, Norihiko
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adaptive modulation scheme
multilevel transmitted power control
OFDM
one‐cell reuse TDMA system
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container_title Electronics & communications in Japan. Part 1, Communications
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creator Nakanishi, Toshiyuki
Sampei, Seiichi
Morinaga, Norihiko
description OFDM AMS/MTPC (OFDM‐based Adaptive Modulation Scheme with Multilevel Transmit Power Control) using multilevel transmit power control schemes to set the modulation levels and transmitted power of each subcarrier of an OFDM (Orthogonal Frequency Division Multiplexing) system can significantly improve the throughput in an isolated cell environment. This paper takes advantage of the property that OFDM AMS/MTPC allows high throughput by using the frequency selectivity of the received SINR (Signal to Interference plus Noise power Ratio) in the presence of interference, and a one‐cell reuse TDMA (Time Domain Multiple Access) system using simple wireless resource control is proposed. In this system, it is necessary to limit dynamic variations of the interference power level associated with transmit power control in such a way that control of the OFDM AMS/MTPC can be appropriately carried out depending on the interference among the cells. In this paper, it is confirmed that an effective cell reuse value of 1.46 can be achieved by optimization with regard to the application of diversity reception, the control period of adaptive modulation, and the spacing of the required SINR of the modulation level. © 2005 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 88(12): 50–60, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.20195
doi_str_mv 10.1002/ecja.20195
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This paper takes advantage of the property that OFDM AMS/MTPC allows high throughput by using the frequency selectivity of the received SINR (Signal to Interference plus Noise power Ratio) in the presence of interference, and a one‐cell reuse TDMA (Time Domain Multiple Access) system using simple wireless resource control is proposed. In this system, it is necessary to limit dynamic variations of the interference power level associated with transmit power control in such a way that control of the OFDM AMS/MTPC can be appropriately carried out depending on the interference among the cells. In this paper, it is confirmed that an effective cell reuse value of 1.46 can be achieved by optimization with regard to the application of diversity reception, the control period of adaptive modulation, and the spacing of the required SINR of the modulation level. © 2005 Wiley Periodicals, Inc. 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subjects adaptive modulation scheme
multilevel transmitted power control
OFDM
one‐cell reuse TDMA system
title One‐cell reuse TDMA system using OFDM‐based adaptive modulation and multilevel transmit power control schemes
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