Weighting strategy in the state space problem for DS-CDMA code acquisition

• Item type: SIG Technical Reports(1)
• 公開日: 2005-06-10
• タイトル: Weighting strategy in the state space problem for DS-CDMA code acquisition
• タイトル / 言語: en
• タイトル: Weighting strategy in the state space problem for DS-CDMA code acquisition
• 言語: eng
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_18gh
• 資源タイプ: technical report
• 著者所属: Graduate School of Media and Governance Keio University
• 著者所属: Graduate School of Media and Governance Keio University
• 著者所属(英): en
• 著者所属(英): Graduate School of Media and Governance Keio University
• 著者所属(英): en
• 著者所属(英): Graduate School of Media and Governance Keio University
• 著者名: Ruo, Ando; Yoshiyasu, Takefuji
• 著者名(英): Ruo, Ando; Yoshiyasu, Takefuji
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: We present a formulation of state-space problem of which solution is directed by redundant reasoning control method for semi-heuristic and lightweight DS-CDMA code acquisition. The reasoning of the state-space problem provides us with the way to find a K bit synchronized sequence among K dephased sequences with less calculation cost compared with serial search and matched filter. In this process redundancy-restriction method called weighting strategy enhances the searching ability of FOL (First order logic) reasoning for the faster and lightweight code acquisition. The combination of weighting strategy and correlator enables us to achieve the peak-detection within K/3 times of calculating inner products and its measurement. Our system is evaluated by the reduced cost of proving state-space problem using weighting strategy and its robustness of using the proposal code acquisition framework. Experiment shows that the proposal method is robust if K/N sequences are grouped with N ranging 3 from 5.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: We present a formulation of state-space problem of which solution is directed by redundant reasoning control method for semi-heuristic and lightweight DS-CDMA code acquisition. The reasoning of the state-space problem provides us with the way to find a K bit synchronized sequence among K dephased sequences with less calculation cost compared with serial search and matched filter. In this process, redundancy-restriction method called weighting strategy enhances the searching ability of FOL (First order logic) reasoning for the faster and lightweight code acquisition. The combination of weighting strategy and correlator enables us to achieve the peak-detection within K/3 times of calculating inner products and its measurement. Our system is evaluated by the reduced cost of proving state-space problem using weighting strategy and its robustness of using the proposal code acquisition framework. Experiment shows that the proposal method is robust if K/N sequences are grouped with N ranging 3 from 5.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA11838947
• 書誌情報: 情報処理学会研究報告ユビキタスコンピューティングシステム（UBI）; 巻 2005, 号 60(2005-UBI-008), p. 377-382, 発行日 2005-06-10
• Notice: SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc.
• 出版者 / 言語: ja
• 出版者: 情報処理学会