{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T09:10:30Z","timestamp":1698225030301},"reference-count":15,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2011,1,31]],"date-time":"2011-01-31T00:00:00Z","timestamp":1296432000000},"content-version":"vor","delay-in-days":5935,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1994,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The development of very low bit rate image compression algorithms renders the transmission of moving and still video with associated speech in a variety of existing and future narrowband telecommunication networks. Existing analog, narrowband (mobile) networks represent a potential field for the introduction of digital bearer services under utilization of the underlying system resources in a compatible manner. A broader variety of services in coexistence with existing analog services may be provided without new network planning. This paper presents corresponding techniques for video and speech transmission in the existing Nonpublic Land Mobile Network under application of commercially available radio telephones and an additional, external digital signal processing unit. Special attention is given to the choice of a digital modulation method under consideration of network constraints such as adjacent channel interference and linear distortions due to nonideal analog IF filters. In this context a modified maximum likelihood detector based on an equivalent linear model of the baseband transmission link is presented. For robust low bit rate video transmission a combined source\u2010channel coding scheme with unequal error protection matched to the source and channel characteristics in case of the target mobile narrowband network is proposed.<\/jats:p>","DOI":"10.1002\/ett.4460050607","type":"journal-article","created":{"date-parts":[[2011,1,31]],"date-time":"2011-01-31T13:43:14Z","timestamp":1296481394000},"page":"705-718","source":"Crossref","is-referenced-by-count":0,"title":["Digital video and speech transmission in existing land mobile radio networks"],"prefix":"10.1002","volume":"5","author":[{"given":"R. Mann","family":"Pelz","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Benthin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K. \u2010D.","family":"Kammeyer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,1,31]]},"reference":[{"key":"e_1_2_1_2_2","unstructured":"Technical Guidelines for Radio Systems of the Nonpublic Land Mobile Radio Network for Speech and Data Transmission with a Channel Spacing of 12.5 20 25 kHz FTZ 17 TR 2049 German PTT 1988."},{"key":"e_1_2_1_3_2","volume-title":"Microwave Mobile Communications","author":"Jakes W. C.","year":"1974"},{"key":"e_1_2_1_4_2","first-page":"473","article-title":"Stochastic models and digital simulation of mobile channels","volume":"32","author":"Schulze H.","year":"1989","journal-title":"Proc. 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Mann","year":"1992","journal-title":"Nachrichtentechnik Elektronik"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1109\/78.91143"},{"key":"e_1_2_1_14_2","unstructured":"T. E.Tremain The government standard linear predictive coding algorithm: LPC\u2010 10. \u201cSpeech Technology\u201d April1982 p40\u201349."},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.2763"},{"key":"e_1_2_1_16_2","unstructured":"J.Hagenauer P.H\u00f6her A Viterbi algorithm with soft\u2010decision output and its applications. Proc. GLOBECOM Dallas 1989 p.47.1.1\u201347.1.7."}],"container-title":["European Transactions on Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fett.4460050607","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ett.4460050607","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,24]],"date-time":"2023-10-24T03:09:27Z","timestamp":1698116967000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ett.4460050607"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,11]]},"references-count":15,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1994,11]]}},"alternative-id":["10.1002\/ett.4460050607"],"URL":"https:\/\/doi.org\/10.1002\/ett.4460050607","archive":["Portico"],"relation":{},"ISSN":["1124-318X","1541-8251"],"issn-type":[{"value":"1124-318X","type":"print"},{"value":"1541-8251","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,11]]}}}