Sub-band Analysis in Uwb Radio Channel Modeling
نویسندگان
چکیده
The paper presents ultra wideband (UWB) channel measurements from 3.1 to 8.0 GHz in office and lecture hall environments carried out at the premises of University of Oulu. Both line-of-sight (LOS) and non-LOS (NLOS) channels were measured having transmitter-receiver separation from 4 to 10 m. Channel parameters that are corresponding to the modified IEEE 802.15.3a model are extracted from the measurement data. In addition, delay spread and path loss are studied. In the study, the measured frequency band is divided into sub-bands and analysed separately. The effect of frequency over the UWB band on the channel statistics is pointed out.
منابع مشابه
An Overview of Modeling of Ultra Wide Band Indoor Channels
In this paper an overview of the reported parameters of the Ultra Wide Band (UWB) indoor wireless channel is presented. First, an introduction to UWB technology as well as UWB wireless channels is provided. Then, impulse response model for the wireless indoor channel is introduced. The available UWB channel measurements results in indoor environments are consulted and accordingly, the major UWB...
متن کاملOn the Spatial and Temporal Degrees of Freedom of UWB Communications
Ultra-Wide Band (UWB) was presented as a promising radio technology. Because of their large bandwidth, UWB networks are supposed able to deliver high data rates at short ranges. But after analyzing measurements many works observed saturation of the number of channel Degrees of Freedom (DoF) versus bandwidth. This motivates the work presented in this paper where we focus on sub space behavior to...
متن کامل0 Ultra - Wideband ( UWB ) Communications Channel – Theory and Measurements
The most recent increase in demand within the wireless user community for short-range, very high rate data and video transmission devices has motivated the growth of a new generation of broadband wireless access communication systems, i.e. Ultra-Wideband (UWB) radio (1)-(4). UWB technology has been employed for several decades in military and commercial communications applications like high-spe...
متن کاملNarrow-Band Interference Suppression in Impulse Radio
Ultra Wide-band (UWB) radio systems have drawn attention during the last few years. These systems use low transmission power, spread over a bandwidth of several gigahertz, which enable them to co-exist with other narrow band systems over the same frequency band without interfering them. Nevertheless, the narrow band systems can cause interference which may jam the UWB receiver completely. This ...
متن کاملPerformance Evaluation of an Improved Multiband Impulse Radio UWB Communication System Based on Sub-Band Selection
Performance evaluation of an improved multiband impulse radio ultra-wideband (MIR UWB) system based on sub-band selection is proposed in this paper. In the improved scheme, a data mapping algorithm is introduced to a conventional MIR UWB system, and out of all the sub-bands, only partial ones are selected to transmit information data, which can improve the flexibility of sub-bands/spectrum allo...
متن کامل