Evaluation of DTTV Transmission for SFN with Minimum Threshold in Thailand

Wireless Personal Communications - The digital terrestrial television (DTTV) transmission based on digital video broadcasting-terrestrial second generation (DVB-T2) for a single frequency network...     

Measurement and Modeling of DTTV–SFN Propagation in Thailand

Wireless Personal Communications - Digital terrestrial television (DTTV) with a single frequency network (SFN) in Thailand is based on digital video broadcasting-terrestrial second generation...     

Evaluation of Weighted Impulse Radio for Ultra-Wideband Localization

This research paper presents indoor localization using weighted localization algorithm (WLA) with impulse radio for ultra-windband. The ultra-wide band is wireless technology short range system, especially in, an indoor localization. In this paper, the proposed process consists of two parts: Firstly, a data collected by measurement environment in a Line-of-Sight using impulse radio and secondly extension weighted localization algorithm with wireless ultra-wideband (WUWB) for localization short-range system in an indoor environment. Its can be improve the distance error. The results are evaluated by the cumulative distribution function to check a probability of distance error. The results provided good improvement which increase the wireless indoor localization precision less than 1 m. The proposed WLA for WUWB localization can be used in various applications for the wireless indoor environment.

     

A Monolithic Patch Antenna on a Semi-insulated Alumina ( $$Al_{2}O_{3}$$ A l 2 O 3 ) Substrate for Active Integrated Antenna

Wireless Personal Communications - Small antenna technology is very important for monolithic patch antenna on semiconductor substrate. The active integrated antenna is analyzed by using cavity...