Signal design to optimize trade-off between bandwidth efficiency and power efficiency in uplink CDMA systems

Journal article

In this paper, we compare two signal designs for uplink quasi-synchronous code division multiple access (CDMA) channels in order to optimize the trade-off between bandwidth efficiency and power efficiency. The design we call band-limited DS/CDMA design, is based on the time-domain assignment of Gold sequences, just as in the ordinary DS/CDMA, but with band-constrained cyclic chip interpolation functions, which is unlike the ordinary DS/CDMA. The other design, MC/CDMA design, is based on frequ...

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Authors: Handa, A; Fujii, M; Itami, M; Itoh, K

• Publication status: Published
• Journal: IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
• Volume: E89A
• Issue: 11
• Pages: 3032-3041
• Publication date: 2006-11-01
• DOI: 10.1093/ietfec/e89-1.11.3032
• EISSN: 1745-1337
• ISSN: 0916-8508
• Language: English
• Keywords: frequency-domain processing; bandwidth efficiency; power efficiency; DS/CDMA; MC/CDMA; signal design