Enhancing Signal Reception in Wireless Communication Systems using Antenna Diversity
- Post by: ejees
- January 27, 2020
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ABSTRACT
Wireless communication services have been growing at a rapid pace in recent years. As the number of network users increases, the demand for reliable signal reception also increases. So, there is an increasing need for efficient link performance. Therefore, antenna diversity is very efficient in mitigating the effect of multi-path fading. The field data measurement of received signal strength from a transmitting base station which was collected using spectrum analyzer of Model AT5011. The distances of the measurement points from the transmitting base station was recorded using the global positioning system. Also, in this research work the received signal strength using two antenna systems were obtained from simulation. Result obtained from the field data showed that the path loss exponent of the characterized environment was 3.70 while the result obtained using antenna diversity resulted in path loss exponent of 2.61. Also this research work presents a two-branch transmit diversity scheme using two transmit antennas and one receive antenna. It is also shown that the scheme may easily be generalized to two transmit antennas and M receive antennas to provide a diversity order of 2M. This scheme does not require any bandwidth expansion or feedback from the receiver to the transmitter.
Keywords: Signal Reception; Signal Attenuation; Antenna Diversity; Wireless Communication Systems
Authored by
1Alor, Chidinma Grace and 2Nnaji, Anthony Chidolue
FULL PDF | DOI: 10.5281/zenodo.7682387