Title :
Digital companding scheme using A I based custom constellation mapping and selection
Author :
Sastry, K. Sankara ; Babu, M. S. Prasad
Author_Institution :
Dept. of CS&SE, Andhra Univ., Visakhapatnam, India
Abstract :
The data rate is important in telecommunication because it is directly proportional to the cost of transmitting the signal. Saving bits is the same as saving money. In this paper we propose new digital companding scheme based on using different constellation orderings (QAM modulator), depending on the data to be transmitted. The proposed scheme was simulated in Matlab7.4 and it was shown that the proposed companding scheme effective with low compression error.
Keywords :
artificial intelligence; compandors; pulse code modulation; quadrature amplitude modulation; telecommunication computing; AI based custom constellation mapping; QAM modulator; constellation orderings; custom constellation selection; digital companding scheme; low compression error; pulse code modulation companding; Bit error rate; Constellation diagram; Noise; Quadrature amplitude modulation; Receivers; Transmitters; QAM; digital companding;
Conference_Titel :
Software Engineering and Service Sciences (ICSESS), 2010 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6054-0
DOI :
10.1109/ICSESS.2010.5552371
