{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T23:10:01Z","timestamp":1738365001614,"version":"3.35.0"},"reference-count":9,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T00:00:00Z","timestamp":1221177600000},"content-version":"vor","delay-in-days":3361,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1999,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A time domain Spread Spectrum (SS)\u2010based subcarrier recovery method is proposed for down\u2010link Multi\u2010Carrier Code Division Multiplexing (MC\u2010CDM) system, which periodically inserts SS pilot signals into data signal stream in a time division manner at the transmitter. Instantaneous channel impulse response is first estimated by correlating the received pilot signal at the receiver, and then corresponding instantaneous frequency response essential for subcarrier recovery is calculated from the Discrete Fourier Transform (DFT) of the estimated impulse response. The SS pilot\u2010assisted method is also applicable to Direct Sequence (DS)\u2010CDM system as a means to estimate instantaneous channel impulse response for Rake combining, and taking the same approach in both MC\u2010CDM and DS\u2010CDM systems, there is no large difference between them in terms of transmission efficiency and receiver complexity. The proposed MC\u2010CDM system must be a promising down\u2010link multiplexing protocol, because it can achieve better bit error rate (BER) performance than the DS\u2010CDM system with the same SS pilot\u2010assisted Rake combiner in frequency selective fast Rayleigh fading channel.<\/jats:p>","DOI":"10.1002\/ett.4460100406","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T13:35:28Z","timestamp":1221226528000},"page":"369-376","source":"Crossref","is-referenced-by-count":4,"title":["Spread Spectrum\u2010Based Subcarrier Recovery Method for Multi\u2010Carrier Code Division Multiplexing System"],"prefix":"10.1002","volume":"10","author":[{"given":"Shinsuke","family":"Hara","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Montree","family":"Budsabathon","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"unstructured":"N.Yee J\u2010P.LinnartzandG.Fettweis Multi\u2010Carrier CDMA in indoor wireless radio networks. InInternational Symposium on Personal Indoor and Mobile Radio Communications pages109\u2013113 1993.","key":"e_1_2_1_2_2"},{"unstructured":"K.FazelandL.Papke On the performance of convolutionally\u2010coded CDMA\/OFDM for mobile communication system. InInternational Symposium on Personal Indoor and Mobile Radio Communications pages468\u2013472 1993.","key":"e_1_2_1_3_2"},{"doi-asserted-by":"crossref","unstructured":"A.Chouly A.BrajalandS.Jourdan Orthogonal multicarrier techniques applied to direct sequence spread spectrum CDMA systems. In Global Telecommunications Conference pages1723\u20131728 1993.","key":"e_1_2_1_4_2","DOI":"10.1109\/GLOCOM.1993.318364"},{"doi-asserted-by":"publisher","key":"e_1_2_1_5_2","DOI":"10.1109\/35.642841"},{"doi-asserted-by":"crossref","unstructured":"S.HaraandR.Prasad DS\u2010CDMA MC\u2010CDMA and MTCDMA for Mobile Multi\u2010Media Communications. InThe 46th IEEE Vehicular Technology Conference pages1106\u20131110 1996.","key":"e_1_2_1_6_2","DOI":"10.1109\/VETEC.1996.501483"},{"unstructured":"S.Hara andR.Prasad Design and performance of Multi Carrier CDMA system in frequency selective Rayleigh fading channels accepted for publication in IEEE Trans on Veh. Technol.","key":"e_1_2_1_7_2"},{"unstructured":"P.Dambacher Digital Broadcasting. The Institution of Electrical Engineers 1996.","key":"e_1_2_1_8_2"},{"issue":"3","key":"e_1_2_1_9_2","first-page":"393","article-title":"Pilot\u2010assited subcarrier recovery methods for OFDM systems (in Japanese)","volume":"182","author":"Imamura D.","year":"1999","journal-title":"IEICE Trans, on Commun."},{"volume-title":"Mobile Communications Engineering","year":"1995","author":"Lee W. C. Y.","key":"e_1_2_1_10_2"}],"container-title":["European Transactions on Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fett.4460100406","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ett.4460100406","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T22:36:31Z","timestamp":1738362991000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ett.4460100406"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,7]]},"references-count":9,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1999,7]]}},"alternative-id":["10.1002\/ett.4460100406"],"URL":"https:\/\/doi.org\/10.1002\/ett.4460100406","archive":["Portico"],"relation":{},"ISSN":["1124-318X","1541-8251"],"issn-type":[{"type":"print","value":"1124-318X"},{"type":"electronic","value":"1541-8251"}],"subject":[],"published":{"date-parts":[[1999,7]]}}}