Title :
HSDPA link adaptation based on novel quality model
Author :
Hai, Wang ; Lei, Wan ; Min, Liao
Author_Institution :
Ericsson Res., Ericsson (China) Co. Ltd., Beijing, China
fDate :
30 May-1 June 2005
Abstract :
A simple model for rate and modulation "interpolation" of 3GPP turbo code performance of the first transmission is studied. To ease the application of the information based quality model, the paper proposes an approximation for the information expression, and proposes a polynomial to calculate the needed information for a given coding rate. The proposed approximation and fitting polynomial are applied to the link adaptation in HSDPA to select the best transport format and resource combination (TFRC). With this proposal, simulations for only a few TFRC are needed to construct the model, and the performance of other TFRC are predicted by this model. The model is applicable for different modulation schemes, coding rates and mobile speeds.
Keywords :
3G mobile communication; interpolation; modulation coding; packet radio networks; polynomial approximation; radio access networks; turbo codes; 3GPP turbo code; HSDPA link adaptation; approximation polynomial; coding rate; fitting polynomial; high speed downlink packet access; information based quality model; information expression approximation; mobile speeds; modulation interpolation; rate interpolation; transport format and resource combination; Adaptation model; Additive white noise; Channel coding; Decoding; Modulation coding; Multiaccess communication; Polynomials; Predictive models; Quadrature phase shift keying; Signal to noise ratio; HSDPA; link adaptation; quality model;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543306
