Title :
An adaptive modulation scheme in wireless multimedia sensor networks
Author :
Ali, Alghamdi ; Hua, Kun
Author_Institution :
Dept. of Electr. & Comput. Eng., Lawrence Technol. Univ., Southfield, MI, USA
Abstract :
In this paper, we propose an adaptive modulation approach in an adaptive way guaranteeing signal interpretation quality and energy efficiency in wireless multimedia sensor networks. The performance of QPSK, QAM with OFDM are compared and designed for diverse channel environments. MATLAB Simulink simulations illustrated the transmitting and receiving performance based on the bit error rate, Discrete-Time Scatter, Spectrum Scope, and constellation diagram.
Keywords :
adaptive modulation; multimedia communication; quadrature amplitude modulation; quadrature phase shift keying; wireless sensor networks; MATLAB Simulink simulations; OFDM; QAM; QPSK; adaptive modulation scheme; bit error rate; constellation diagram; discrete-time scatter; diverse channel environments; energy efficiency; signal interpretation quality; spectrum scope; wireless multimedia sensor networks; Bit error rate; Fading; Mathematical model; OFDM; Phase shift keying; Quadrature amplitude modulation;
Conference_Titel :
GLOBECOM Workshops (GC Wkshps), 2011 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4673-0039-1
Electronic_ISBN :
978-1-4673-0038-4
DOI :
10.1109/GLOCOMW.2011.6162437
