Title :
Design of multicarrier pulses maximizing SINR by ISI/ICI shaping for the Doubly Dispersive channel
Author :
Krupa Abel, Jaba Deva ; Karuna, Yepuganti ; Ramachandra Reddy, G. ; Dhuli, Ravindra
Author_Institution :
VIT Univ., Vellore, India
Abstract :
Multicarrier modulation (MCM) is a popularly used transmission technique. This paper aims at designing the multicarrier modulation pulse for communication over a Doubly Dispersive (DD) channel. For a DD channel, Inter Symbol Interference (ISI)Inter Carrier Interference (ICI) can be completely eliminated only when we design the pulses with the knowledge of the channel state. But for a quickly varying doubly dispersive channel, the channel state cannot be tracked by the transmitter. So instead of designing a pulse which suppresses all the ISIICI, the proposed technique designs the MCM pulses which allows a tolerable ISIICI within the target pattern and eliminates all the ISIICI outside the target pattern. By properly selecting the target pattern, it is possible to treat the allowed ISIICI by using simple equalization/decoding techniques.
Keywords :
intercarrier interference; interference suppression; intersymbol interference; quadrature amplitude modulation; wireless channels; ICI; ISI; MCM; SINR; doubly dispersive channel; intercarrier interference; intersymbol interference; multicarrier modulation pulse; target pattern; Dispersion; Interference; Modulation; Receivers; Shape; Signal to noise ratio; Transmitters; Doubly Dispersive Channel; Inter Carrier Interference (ICI); Inter Symbol Interference (ISI); Multicarrier Modulation;
Conference_Titel :
Communications and Signal Processing (ICCSP), 2014 International Conference on
Conference_Location :
Melmaruvathur
Print_ISBN :
978-1-4799-3357-0
DOI :
10.1109/ICCSP.2014.6950061