{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,1]],"date-time":"2025-02-01T05:30:54Z","timestamp":1738387854716,"version":"3.35.0"},"reference-count":18,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T00:00:00Z","timestamp":1221177600000},"content-version":"vor","delay-in-days":4029,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1997,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The effect of chip waveform shaping on both the error and spectral performance of DS\u2010CDMA communication systems using generalized offset quadrature modulation formats is investigated. A solution to the problem of optimizing the chip waveform shape to achieve minimum multiple access interference variance at a given in\u2010band power bandwidth occupation and with a continuous phase constraint is presented. Several design examples with various bandwidth occupancies are used to illustrate the gains achieved by the optimized chip waveforms over other conventional modulation schemes such as OQPSK and MSK.<\/jats:p>","DOI":"10.1002\/ett.4460080510","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T14:40:22Z","timestamp":1221230422000},"page":"527-536","source":"Crossref","is-referenced-by-count":3,"title":["Optimal chip waveforms for DS\u2010CDMA with generalized OQPSK modulation"],"prefix":"10.1002","volume":"8","author":[{"given":"Mohamed A.","family":"Landolsi","sequence":"first","affiliation":[]},{"given":"Wayne E.","family":"Stark","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"key":"e_1_2_1_2_2","unstructured":"M. B.Pursley F. D.Garber J. S.Lehnert:Analysis of generalized quadriphase spread\u2010spectrum communications. In Conf. Rec IEEE Int. Conf. Commun. June1980 Vol. 1 p.15.3.1\u201315.3.6."},{"volume-title":"Multi\u2010User Communications","year":"1980","author":"Pursley M. B.","key":"e_1_2_1_3_2"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1981.1094989"},{"key":"e_1_2_1_5_2","unstructured":"J. S.Lehnert:Chip waveform selection in offset\u2010quaternary direct\u2010sequence spread\u2010spectrum multiple\u2010access communications. M. S Thesis University of Illinois at Urbana\u2010Champaign 1981."},{"key":"e_1_2_1_6_2","doi-asserted-by":"crossref","unstructured":"M. A.Landolsi W. E.Stark:DSICDMA chip waveform design for optimal power bandwidth performance. In Proc. PIMRC95 Toronto Canada September1995 p.706\u2013710.","DOI":"10.1109\/PIMRC.1995.480961"},{"key":"e_1_2_1_7_2","doi-asserted-by":"crossref","unstructured":"R.Anjaria R.Wyrwas:The effect of chip waveform of CDMA systems in multipath fading noisy channels. Proceedings of the 42\u2010nd IEEE VTS Conference Denver Colorado May1992 p.672\u2013675.","DOI":"10.1109\/VETEC.1992.245483"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.544456"},{"key":"e_1_2_1_9_2","unstructured":"H.Imai:On pulse waveforms for asynchronous CDM communications (in Japanese). Chap. 6 of Studies on code division multiplex communication systems and feedback channels. M. S Thesis University of Tokyo March1968."},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/49.298058"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/49.54460"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1976.1093294"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1979.1094468"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1981.1095099"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.212358"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/j.1538-7305.1961.tb03976.x"},{"key":"e_1_2_1_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/j.1538-7305.1961.tb03977.x"},{"key":"e_1_2_1_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-2031-7"},{"volume-title":"Spheroidal wave functions","year":"1957","author":"Flammer C.","key":"e_1_2_1_19_2"}],"container-title":["European Transactions on Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fett.4460080510","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ett.4460080510","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T22:39:33Z","timestamp":1738363173000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ett.4460080510"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,9]]},"references-count":18,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1997,9]]}},"alternative-id":["10.1002\/ett.4460080510"],"URL":"https:\/\/doi.org\/10.1002\/ett.4460080510","archive":["Portico"],"relation":{},"ISSN":["1124-318X","1541-8251"],"issn-type":[{"type":"print","value":"1124-318X"},{"type":"electronic","value":"1541-8251"}],"subject":[],"published":{"date-parts":[[1997,9]]}}}