Combination of adaptive modulation and space frequency block coding or antenna weighting for efficient encoded data transmissionThe method provides a modulation process for transmitting data on several sub-carriers over several radio channels. The method involves receiving a bit loading table provided on ...
modulation and coding levels to apply to a downlink signal transmitted from the base station to the user equipment, the selection being based upon a comparison between the reported downlink signal transmission quality and a threshold value; and a threshold value adjusting unit operable, when the ...
In this paper, we study the performance of an Orthogonal Frequency Division Multiplexing (OFDM) WiMAX transmission system with adaptive modulation and coding (AMC) over different fading channels. An explanation necessary to understand the block diagram of the system is briefly given and a MATLAB ...
An audio encoder applies an adaptive block-encoding process to segments of audio information to generate frames of encoded information that are aligned with a reference signal conveying the alignment of a sequence of video information frames. The audio information is analyzed to determine various charac...
In most block-based video coding systems, the fast block matching algorithms (BMAs) use the origin as the initial search center, which may not track the motion very well. To improve the accuracy of the fast BMAs, a new adaptive motion tracking search algorithm is proposed in this paper. Ba...
Performance of variable-power adaptive modulation with space-time block coding and imperfect channel state information over Rician fading channels The performance analysis of a space-time block coded multiple input multiple output system with variable-power (VP) adaptive modulation (AM) over Rician fa....
摘要: Presents information on a study which described an adaptive threshold control scheme for packet radio acquisition. Description of the adaptive threshold control scheme; block diagram of the acquisition system and the adaptive threshold control scheme; Performance analysis....
H. Liew and L. Hanzo: Spacetime trellis and spacetime block coding versus adaptive modulation... Hanzo,“Space-time trellis and space-time block coding versus adaptive Modulation and coding aided OFDM for wideband channels,”IEEE Transactions on Vehicular... L Hanzo,T Liew,B Yeap,... - ...
This technology will find applications in the distribution and transmission of AM quality audio programming over low rate channels such as the INMARSAT Standard A, B and aeronautical systems 展开 关键词: adaptive signal processing amplitude modulation audio coding audio signals data compression linear ...
We show that when the channel has no ISI, then adaptive antennas, in the form of beamforming, can be combined with space-time coding to achieve a diversity of mL and a large signal processing (SNR) gain, whenever n⩾L. When the channel has ISI, beamforming can be used to achieve...