Title :
New UPA scheme for turbo codes in cdma2000 system
Author_Institution :
Fac. of Eng. & Technol., Multimedia Univ., Malacca, Malaysia
Abstract :
Turbo codes are part of the standardization for the 3G wireless communication system. They have been chosen for their error correcting ability to approach the Shannon limit. In a standard turbo coding system, all bits are transmitted with equal energy. This strategy does not guarantee optimum allocation. UPA ( unequal power allocation) been adopted to optimize the power allocation for each bit stream. Using new modified technique for UPA, the performance of turbo codes is studied.
Keywords :
3G mobile communication; error correction codes; optimisation; power control; turbo codes; 3G wireless communication; Shannon limit; UPA scheme; cdma2000 system; error correcting; optimum allocation; performance; standardization; turbo codes; unequal power allocation; AWGN channels; Binary phase shift keying; Code standards; Decoding; Euclidean distance; Modulation coding; Multimedia systems; Power distribution; Signal to noise ratio; Turbo codes;
Conference_Titel :
TENCON 2003. Conference on Convergent Technologies for the Asia-Pacific Region
Print_ISBN :
0-7803-8162-9
DOI :
10.1109/TENCON.2003.1273288
