Analysis of LTE-A Signal Strength in Indoor Mobility Environment

Wireless communication network seems to be the highest interest by the research communities. One of the challenges areas is signal propagation spatially in 4.5G Long-Term Evolution-Advanced (LTE-A) mobility indoor environment. This paper presents a study on signal strength with frequency approaches from 1.8 GHz to 2.2 GHz in indoor environments. It focuses more on mobility of the receiver device, where there will be different distances. In this paper, an USRP (Universal Software Radio Peripheral) device is used as base stations to transmit the desired frequency as well as to receive the signal strength at certain distances in the indoor environment. The collected data showed the signal strength is inversely proportional to distance and frequency. Overall, the lower frequency band gives a good penetration of an object in radio wave in indoor environment. Furthermore, an algorithm is developed for spectrum mobility in LTE-A environment. By using our proposed scheme, the user able to adjust its transmission power with sufficient protection to licensed user instead of carrying out spectrum handoff. This investigation is found important for predicting indoor signal loss in LTE-A system and is useful for telecommunication providers to improve their service for better capacity and mobile user satisfaction.