Open AccessImplementation of 4x4 Mimo with Zigbee
Author(s) -
T. Monish,
B. Rupekeshan,
B. Rajamanikkam,
V. Jeyaramya
Publication year - 2019
Publication title -
international journal of scientific research in science, engineering and technology
Language(s) - English
Resource type - Journals
eISSN - 2395-1990
pISSN - 2394-4099
DOI - 10.32628/ijsrset196231
Subject(s) - multipath propagation , mimo , computer science , transmitter , antenna (radio) , electronic engineering , smart antenna , wireless , multi user mimo , 3g mimo , antenna array , transmission (telecommunications) , data transmission , telecommunications , computer network , directional antenna , engineering , channel (broadcasting)
MIMO (multiple inputs, multiple outputs) is an antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver). The antennas at each end of the communications circuit are combined to minimize errors and optimize data speed. MIMO is one of several forms of smart antenna technology, the others being MISO (multiple inputs, single output) and SIMO (single input, multiple outputs). In conventional wireless communications, a single antenna is used at the source, and another single antenna is used at the destination. In some cases, this gives rise to problems with multipath effects. In digital communications systems such as wireless Internet, it can cause a reduction in data speed and an increase in the number of errors. The use of two or more antennas, along with the transmission of multiple signals (one for each antenna) at the source and the destination, eliminates the trouble caused by multipath wave propagation, and can even take advantage of this effect.This was only the first step as system then started to utilize the multipath propagation to advantage, turning the additional signal paths effectively be considered as additional channels to carry additional data.