Behaviors of MIMO UWB-IR transceiver for statistical wireless channels

Multi-antenna-based multi-input multi-output (MIMO) communications becomes the next revolution in wireless data communications. MIMO has gone through the adoption curve for commercial wireless systems to the point that today, all high throughput commercial standards, i.e. WiMax, Wi-Fi, cellular, etc., have adopted MIMO as part of the optional. This paper is to present our investigations of the behaviors of the MIMO Ultra-Wide-Band-Impulse Radio (UWB-IR) systems, which will contribute to optimal designs for the low-power high-speed data communication over unlicensed bandwidth spanning several GHz, such as IEEE 802.15 families. Our investigations are based on that without requiring any channel estimation procedure we develop and analyze three no coherent transceiver models. The simulations for our investigations show (a) the Poisson distribution of the path arriving will affect the signal-noise ratio (SNR) and (b) for the Nakagami distributed multipath fading channel the “m” factor will impact on the SNR on the MIMO UWB-IR systems.