Title :
A redundant residue number system coded burst-by-burst adaptive joint-detection based CDMA speech transceiver
Author :
How, H.T. ; Liew, T.H. ; Kuan, Ee-Lin ; Yang, Lie-Liang ; Hanzo, Lajos
Author_Institution :
Dept. of Electron. & Comput. Sci., Univ. of Southampton, UK
Abstract :
A burst-by-burst (BbB) adaptive speech transceiver is proposed, which can drop its source coding rate and speech quality under transceiver control in order to invoke a more error resilient modem mode among less favorable channel conditions. The adaptive multirate (AMR) speech codec is operated at bit rates of 4.75 and 10.2 kb/s and combined with source sensitivity-matched redundant residue number system (RRNS) based channel codes. BbB adaptive joint detection aided code division multiple access is used for supporting the dual rate speech codec. Both the objective and subjective speech quality assessments favored the proposed BbB adaptive transceiver.
Keywords :
adaptive codes; channel coding; code division multiple access; residue number systems; speech codecs; speech coding; transceivers; CDMA speech transceiver; burst-by-burst adaptive joint-detection; channel codes; code division multiple access; redundant residue number system code; source coding; speech codec; speech quality; Adaptive control; Adaptive systems; Error correction; Modems; Multiaccess communication; Programmable control; Source coding; Speech codecs; Speech coding; Transceivers; AMR voice codec; HSDPA; RNS; RRNS;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2005.861175
