Title :
Dispensing with Channel Estimation…
Author :
El-Hajjar, Mohammed ; Hanzo, Lajos
Author_Institution :
Imagination Technol. Ltd., Chepstow, UK
fDate :
6/1/2010 12:00:00 AM
Abstract :
In this article, we investigate the feasibility of noncoherent detection schemes in wireless communication systems as a low-complexity alternative to the family of coherent schemes. The noncoherent schemes require no channel knowledge at the receiver for the detection of the received signal, while the coherent schemes require channel inherently complex estimation, which implies that pilot symbols have to be transmitted resulting in a wastage of the available bandwidth as well as the transmission power.
Keywords :
MIMO communication; channel estimation; coherence; radiocommunication; signal detection; channel inherently complex estimation; low-complexity noncoherent virtual MIMO scheme; multiple-input multiple-output; noncoherent detection; signal detection; transmission power; wireless communication systems; Bandwidth; Channel estimation; Differential quadrature phase shift keying; Digital video broadcasting; MIMO; Performance loss; Phase detection; Quadrature amplitude modulation; Receiving antennas; Wireless communication;
Journal_Title :
Vehicular Technology Magazine, IEEE
DOI :
10.1109/MVT.2010.936644
