Title :
Multirate coding for mobile communications link adaptation
Author :
Atungsiri, S.A. ; Tateesh, S.T. ; Kondoz, A.
Author_Institution :
Surrey Univ., Guildford, UK
fDate :
6/1/1997 12:00:00 AM
Abstract :
A mobile communication system that uses multirate source and channel coding is capable of trading off the source coder bit rate against the channel coder rate to optimise performance over a wide range of channel conditions. This link adaptation enables a mobile station to maintain reasonable speech quality even during marginal carrier to interference ratio conditions. The paper details the design and evaluation of a quad-rate speech and channel coder optimised to provide wireless link adaptation by seamless rate switching
Keywords :
channel coding; land mobile radio; radio links; source coding; speech coding; speech intelligibility; vocoders; carrier to interference ratio; channel coder rate; channel conditions; mobile communication system; mobile communications link adaptation; mobile station; multirate channel coding; multirate source coding; performance optimisation; quadrate channel coder; quadrate speech coder; seamless rate switching; source coder bit rate; speech quality; wireless link adaptation;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:19971242
