カテゴリ: 論文誌(論文単位)グループ名: 【C】電子・情報・システム部門発行日: 2014/04/01タイトル(英語): A Method to Construct Phase Spreading Sequences for CPM-CDMA Systems著者名: 森岡 和行（信州大学大学院総合工学系研究科），アサノ デービッド（信州大学工学部情報工学科）著者名(英語): Kazuyuki Morioka (Department of Mathematics and System Development, The Interdisciplinary Graduate School of Science and Technology, Shinshu University), David Asano (Department of Computer Science & Engineering, Shinshu University)キーワード: 位相連続変調(CPM)，位相連続周波数偏移変調(CPFSK)，最小偏移変調(MSK)，ガウス型最小偏移変調(GMSK)，符号分割多元接続(CDMA)，位相拡散系列(PSS) Continuous phase modulation，Continuous phase frequency shift keying，Minimum shift keying，Gaussian minimum shift keying，Code division multiple access，Phase spreading se要約(英語): In this paper, a construction method for phase spreading sequences which is suitable for CPM-CDMA systems is proposed. Using these sequences, the performance of asynchronous CPM-CDMA systems with traditional BPSK/OQPSK-CDMA systems and the tradeoff between spreading factor and modulation parameters are considered. Numerical results show that the optimal modulation index for CPFSK-CDMA systems is h=0.5 and the performance is better for lower values of BbTc in GMSK-CDMA systems. Also, we found that the user capacities of MSK-CDMA systems are 2.3 times larger than that of BPSK/OQPSK-CDMA systems.本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.134 No.4 （2014） 特集：量子ビームによるナノバイオ物理応用技術本誌掲載ページ: 534-542 p原稿種別: 論文／日本語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/134/4/134_534/_article/-char/ja/
