Author(s)

Abu Sayed Md. Mostafizur Rahaman¹, Jesmin Akhter², Md. Rafsan Jani¹, Md. Imdadul Islam¹

¹Department of Computer Science and Engineering, Jahangirnagar University, Savar, Dhaka, Bangladesh.
²Institute of Information Technology, Jahangirnagar University, Savar, Dhaka, Bangladesh.

In adaptive beamforming system adaptive algorithm of digital filter is applied to update the weighting vector of the antenna elements to get antenna gain along the desired direction and attenuation along the jammer. The objective of the paper is to evaluate the threshold gain of the adaptive beam former along the line of sight (LOS) between the transmitter and the receiver (including jammer suppression) to make the single hop link comparable with 2-hop link. The single hop and 2-hop communication systems are compared in context of symbol error rate (SER) under fading condition theoretically and verified by simulation. Finally we evaluate the numerical value of threshold gain of adaptive beamformer of two antenna elements under Rayleigh and Nakagami-m fading conditions.

Array Antenna System, BER, Threshold Array Gain, Side Lobe Canceller, Path Loss

Rahaman, A. , Akhter, J. , Jani, M. and Islam, M. (2018) Determination of Array Gain of Single Hop to Achieve the Performance of a 2-Hop Wireless Link. Journal of Computer and Communications, 6, 84-98. doi: 10.4236/jcc.2018.67008.