Title :
Aerial modulation for high order PSK transmission schemes
Author :
Alrabadi, Osama N. ; Kalis, Antonis ; Papadias, Constantinos B. ; Prasad, Ramjee
Author_Institution :
Broadband Wireless & Sensor Networks Group (BWiSE), Athens Inf. Technol. (AIT), Athens, Greece
Abstract :
The performance of PSK schemes degrades as the modulation order increases and becomes somehow unreliable over wireless fading channels. In this work, we improve the performance of high order PSK transmission schemes over Rayleigh fading channels by mapping the neighboring symbols of a PSK signal constellation onto a set of weakly-correlated field patterns. We implement the scheme using a compact two element ESPAR (electronically steerable parasitic array radiator) antenna with an inter-element spacing of lambda/16. An appreciable gain regarding the system performance is obtained using the proposed scheme.
Keywords :
Rayleigh channels; antenna arrays; antenna radiation patterns; phase shift keying; Rayleigh channels; aerial modulation; electronically steerable parasitic array radiator antenna; high-order PSK transmission schemes; wireless fading channels; Antenna arrays; Constellation diagram; Entropy; Fading; Impedance; Phase shift keying; Signal mapping; Transmission line matrix methods; Varactors; Wireless sensor networks; ESPAR; M-PSK modulation; Pattern Switching; Rayleigh Fading Channels;
Conference_Titel :
Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology, 2009. Wireless VITAE 2009. 1st International Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-1-4244-4066-5
Electronic_ISBN :
978-1-4244-4067-2
DOI :
10.1109/WIRELESSVITAE.2009.5172556
