A study for 2-D indoor localization using multiple leaky coaxial cables

Abstract

Indoor localization technology, which can provide the location information of the target object or stochastic things, is becoming essential requirement for many applications and services such as Internet-of-Things (IoT), real-time control in the development of Fifth-generation (5G) technology. Leaky coaxial cable which can be used as antennas is able to detect the location of the user in a simple way due to its potential property. In this paper, we proposes a simple method to improve the localization accuracy of 2-D indoor localization using multiple LCX cables. In addition, we also evaluate the channel capacity loss due to the localization error of the LCX-MIMO using our proposed method.

Capacity Loss From Localization Error in MIMO Channel Using Leaky Coaxial Cable

“…We can measure the difference time of arrival (DToA) of both signals to estimate the user's location. For time arrival estimation, the method based on multiple signal classification (MUSIC) algorithm is used in LCX-MIMO system in our recent researches [26]- [28]. We used the orthogonality between the signal and noise to analyze the signal samples from the limited bandwidth and then employed the MUSIC method to estimate the ToA of signal.…”

“…References [26] and [27] show a localization detection method in LCX-MIMO using the multiple signal classification (MUSIC) algorithm. Reference [28] provided a different LCX combination for higher localization precision. With these good properties, LCX can be employed for many scenarios such as logistics management systems and manufacturing.…”

Two-Dimensional RSSI-Based Indoor Localization Using Multiple Leaky Coaxial Cables With a Probabilistic Neural Network

“…After that, reference [21] presents a 4-by-4 LCX-MIMO system using one composite LCX. In addition to the usage for wireless communication, LCX is available for localization in indoor environments [22]- [24]. References [22] and [23] propose the localization methods with time of arrival (TOA) and time difference of arrival (TDOA) in LCX systems.…”

“…References [22] and [23] propose the localization methods with time of arrival (TOA) and time difference of arrival (TDOA) in LCX systems. In [24], authors develop a different combination of multiple LCXs to achieve higher accuracy in localization. On the other hand, due to the constant power loss in the cable, LCX can easily improve the channel capacity by transmitting power allocation using the user's position information [25].…”