On a Recent 4Phase Sequence Design for CDMA (Special Issue on Spread Spectrum Techniques and Applications)
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概要
- 論文の詳細を見る
Recently, a family of 4-phase sequences (alphabet {1,j,-1,-j}) was discovered having the same size ^r+1 and period 2^r-1 as the family of binary (i.e., {+1, -1}) Gold sequences, but whose maximum nontrivial correlation is smaller by a factor of √<2>. In addition, the worst-case correlation magnitude remains the same for r odd or even, unlike in the case of Gold sequences. The family is asymptotically optimal with respect to the Welch lower bound on C_<max> for complex-valued sequences and the sequences within the family are easily generated using shift registers. This paper aims to provide a more accessible description of these sequences.
- 社団法人電子情報通信学会の論文
- 1993-08-25
著者
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Kumar Vijay
Communication Sciences Institute Ee-systems University Of Southern California
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Hammons RogerJr.
Communication Sciences Institute, EE-Systems, University of Southern California
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Hammons Rogerjr.
Communication Sciences Institute Ee-systems University Of Southern California