Title :
A Real-Time Wireless Channel Emulator for MIMO Systems
Author :
Eslami, Hamid ; Eltawil, Ahmed M.
Abstract :
The improvement in channel capacity hailed by MIMO systems is directly related to intricate details of the wireless channel such as the degree of correlation between the multiple channels established due to a MIMO configuration. Capturing these details in real time emulation systems becomes absolutely essential to validate theoretical results in a controlled setting. This paper presents methods to achieve significant improvements in speed and complexity for real time channel emulation maintaining high resolutions in time and frequency. In particular, this paper presents a frequency domain emulation technique that reduces add/multiply operations by 54% compared to conventional FIR emulation. A comprehensive complexity analysis is performed to compare the complexity of different techniques.
Keywords :
MIMO systems; channel capacity; convolution; frequency-domain analysis; wireless LAN; wireless channels; MIMO systems; channel capacity; convex convolution; degree of correlation; frequency domain emulation; wireless LAN; wireless channel emulator; wireless channels; Algorithm design and analysis; Channel capacity; Control systems; Emulation; Finite impulse response filter; Frequency domain analysis; MIMO; Performance analysis; Real time systems; System testing;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.19
