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The proposed algorithm is mainly based on artificial bandwidth extension (ABE) from narrowband to wideband. It consists of three main functions: packet loss concealment in the narrowband, ABE in the modified discrete cosine transform (MDCT) domain, and smoothing of wideband MDCT coefficients with those of the last good frame. The performance of the proposed PLC algorithm is implemented by replacing the PLC algorithm employed in the ITU-T Recommendation G.729.1. The experimental results show that the proposed PLC algorithm provides significantly better speech quality than the PLC in the ITU-T G.729.1. <\/jats:p>","DOI":"10.1155\/2014\/852798","type":"journal-article","created":{"date-parts":[[2014,4,18]],"date-time":"2014-04-18T01:29:26Z","timestamp":1397784566000},"page":"852798","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["A Packet Loss Concealment Technique Improving Quality of Service for Wideband Speech Coding in Wireless Sensor Networks"],"prefix":"10.1177","volume":"10","author":[{"given":"Nam In","family":"Park","sequence":"first","affiliation":[{"name":"School of Information and Communications, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 500-712, Republic of Korea"}]},{"given":"Jin Ah","family":"Kang","sequence":"additional","affiliation":[{"name":"Smart-Work Research Section, Wired & Wireless Convergence Research Department, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 305-700, Republic of Korea"}]},{"given":"Seong Ro","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Information & Electronics, College of Engineering, Mokpo National University, 1666 Youngsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam 534-729, Republic of Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0105-6693","authenticated-orcid":false,"given":"Hong Kook","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Information and Communications, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 500-712, Republic of Korea"}]}],"member":"179","published-online":{"date-parts":[[2014,4,17]]},"reference":[{"key":"B1-2014-852798","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/434301"},{"key":"B2-2014-852798","doi-asserted-by":"publisher","DOI":"10.1109\/ISCC.2009.5202391"},{"first-page":"291","volume-title":"Proceedings of the IEEE Real-Time Systems Symposium","author":"Manghalam R.","key":"B3-2014-852798"},{"key":"B4-2014-852798","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/153034"},{"key":"B5-2014-852798","first-page":"91","volume":"50","author":"Newton P. 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