{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,12]],"date-time":"2025-04-12T05:47:58Z","timestamp":1744436878609},"reference-count":15,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T00:00:00Z","timestamp":1221177600000},"content-version":"vor","delay-in-days":4578,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1996,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This work considers asynchronous DS\u2010CDMA systems with single\u2010user receivers. The focus is on chip pulse shaping and combined error control\/PN sequence spreading. It is shown that pulse shaping can significantly reduce the effects of cross\u2010talk interference. A criterion which measures the ability of a chip waveform to reduce cross\u2010talk interference is derived, taking into account, the signal bandwidth. This work also shows that the best performance is achieved when all the bandwidth expansion is accomplished by error control coding. instead of PN sequences. Comparisons of CDMA systems using different pulse shapes are presented, taking into account the bandwidth of each pulse. Finally CDMA is compared to orthogonal multiple access (TDMA\/FDMA) in an interference free environment. It is shown that for the same bandwidth (99% energy containment bandwidth), CDMA with suitable chip waveforms and coding yields the same performance as binary orthogonal multiple access with raised cosine shaping of 70% excess bandwidth.<\/jats:p>","DOI":"10.1002\/ett.4460070204","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T11:42:17Z","timestamp":1221219737000},"page":"133-143","source":"Crossref","is-referenced-by-count":9,"title":["Chip shaping and channel coding for CDMA"],"prefix":"10.1002","volume":"7","author":[{"given":"Jean\u2010Paul","family":"Chaib","sequence":"first","affiliation":[]},{"given":"Harry","family":"Leib","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.1979.1089969"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.1984.1146083"},{"key":"e_1_2_1_4_2","doi-asserted-by":"crossref","unstructured":"M. B.Purslcy E.Geraniotis Error probabilities for direct\u2010sequence spread\u2010spectrum multiple access communications \u2010 Part II: approximations. \u201cIEEE Trans. Comm.\u201d May1982 p 985\u2013995.","DOI":"10.1109\/TCOM.1982.1095552"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/49.54460"},{"key":"e_1_2_1_6_2","volume-title":"Probability and information theory, with applications to radar","author":"Woodward P. M.","year":"1953"},{"key":"e_1_2_1_7_2","volume-title":"Radar signals, an introduction to theory an application","author":"Cook C. E.","year":"1967"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.1980.1090291"},{"key":"e_1_2_1_9_2","volume-title":"The theory of error\u2010correcting codes","author":"MacWilliams F. J.","year":"1977"},{"key":"e_1_2_1_10_2","volume-title":"Principles of digital communication and coding","author":"Viterbi A. I.","year":"1979"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1977.1093915"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1109\/25.289411"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1987.1096720"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.41160"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.135712"},{"key":"e_1_2_1_16_2","volume-title":"Digital communications","author":"Proakis John G.","year":"1989"}],"container-title":["European Transactions on Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fett.4460070204","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ett.4460070204","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,27]],"date-time":"2023-10-27T01:15:21Z","timestamp":1698369321000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ett.4460070204"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1996,3]]},"references-count":15,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1996,3]]}},"alternative-id":["10.1002\/ett.4460070204"],"URL":"https:\/\/doi.org\/10.1002\/ett.4460070204","archive":["Portico"],"relation":{},"ISSN":["1124-318X","1541-8251"],"issn-type":[{"value":"1124-318X","type":"print"},{"value":"1541-8251","type":"electronic"}],"subject":[],"published":{"date-parts":[[1996,3]]}}}