Title :
Wireless SPIHT-encoded image transmission employing hierarchical modulation: A DSP implementation
Author :
Zamkotsian, Martin ; Peppas, Kostas P. ; Fovakis, George ; Lazarakis, F. ; Alexandridis, A. ; Dangakis, K. ; Cottis, Panayotis G.
Author_Institution :
Lab. of Wireless Commun., Nat. Centre for Sci. Res. “Demokritos”, Athens, Greece
Abstract :
In this paper, the performance of wireless transmission of SPIHT-encoded images employing Hierarchical Quadrature Amplitude Modulation (HQAM) is investigated with an experimental test-bed. Two Texas Instruments (TI) Digital Starter Kits (DSK), each one equipped with the floating point DSP chip TMS320C6713, are employed for the system testing, one for the transmitter and one for the receiver. The digital signal processing that formats the information data in preparation for transmission as well as the digital signal processing that recovers the information data at the receiver site are described in detail. Various results measuring bit error rates and peak signal-to-noise ratios are presented to demonstrate the performance of the experimental setup under various channel conditions, for different values of the modulation parameters.
Keywords :
digital signal processing chips; error statistics; quadrature amplitude modulation; radio receivers; radio transmitters; visual communication; wireless channels; DSK; DSP chip TMS320C6713; HQAM; Texas Instruments; bit error rates; data transmission; digital signal processing; digital starter kits; hierarchical quadrature amplitude modulation; receiver; signal-to-noise ratios; transmitter; wireless SPIHT-encoded image transmission; Digital signal processing; Discrete wavelet transforms; Estimation; Software; WiMAX; Discrete Wavelet Transform (DWT); Experimental Results; Hierarchical Quadrature Amplitude Modulation (HQAM); SPIHT algorithm; Unequal Error Protection (UEP); Wireless test-bed;
Conference_Titel :
Signal Processing and Information Technology(ISSPIT), 2013 IEEE International Symposium on
Conference_Location :
Athens
DOI :
10.1109/ISSPIT.2013.6781929
