A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA(Terrestrial Radio Communications)
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概要
- 論文の詳細を見る
We have been investigating an orthogonal frequency division multiple access (OFDMA) based cellular system that is called "dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)" for the development of beyond third generation (B3G) mobile communication systems. Moreover, we have already proposed a time alignment control (TAC) to compensate propagation delays that induce a multiple-access interference (MAI) in the uplink OFDMA. However, that TAC includes a large amount of computations. This means that it is quite difficult for the OFDMA systems to implement TAC into volume-limited hardware devices such as field programmable gate array (FPGA). Thus, we propose a new complexity-reduced TAC (CRTAC) in this paper. CRTAC can be implemented into such devices easily. In this paper, we show some computer simulation results, and then evaluate the error rate performances of DPC-OF/TDMA employing CRTAC. Moreover, we also show the benefit of the reasonable level of the implementation complexity made by CRTAC.
- 社団法人電子情報通信学会の論文
- 2006-08-01
著者
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FUNADA Ryuhei
National Institute of Information and Communications Technology (NICT)
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HARADA Hiroshi
National Institute of Information and Communications Technology (NICT)
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Funada Ryuhei
National Inst. Information And Communications Technol. (nict) Kanagawa Jpn
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Kimura Ryota
Ubiquitous Mobile Communications Group (UMCG) National Institute of Information and Communications T
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KIMURA Ryota
Graduate School of Global Information and Telecommunication Studies, Waseda University
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SHIMAMOTO Shigeru
Graduate School of Global Information and Telecommunication Studies, Waseda University
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Shimamoto Shigeru
Graduate School Of Global Information And Telecommunication Studies Waseda University
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Harada Hiroshi
National Inst. Of Information And Communications Technol. (nict) Kanagawa Jpn
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Shimamoto Shigeru
Graduate Scholl Of Global Information And Telecommunication Studies Waseda University
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Harada Hiroshi
National Insitute Of Information And Communication Technology
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Kimura Ryota
Graduate School of Engineering, Gunma University
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