Title :
Analysis and optimization of interleave-division multiple-access communication systems
Author :
Li, Kai ; Wang, Xiaodong ; Li, Ping
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
In this paper, we focus on the analysis and optimization of the interleave-division multiple-access (IDMA) system. The spectral efficiencies of the coded IDMA system are analyzed. Optimal power allocation among users in IDMA, to maximize the spectral efficiency with a finite-alphabet constellation, is also considered. Differential evolution is adopted to solve the power profile optimization problem.
Keywords :
Hadamard codes; binary codes; evolutionary computation; iterative methods; multi-access systems; multiuser detection; optimisation; phase shift keying; turbo codes; BPSK; binary codebooks; differential evolution; finite-alphabet constellation; interleave-division multiple-access system; iterative chip-level multiuser detection; power allocation optimization; spectral efficiency optimization; turbo-Hadamard coded IDMA system; AWGN; Reactive power; Transmitters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1415860
