—Wireless link in mobile cellular communication system is experienced by large and small scale fading. Since the link is non line of sight (NLOS), therefore, severely affected by multipath fading. In a two-hop wireless links, each link is affected by fading and noise degrades the overall performance of the communication system. In this paper, performance of two- hop links is analyzed under Rayleigh and Nakagami-m fading environments separately for QPSK and 8-PSK modulation schemes. In this paper zero-forcing adaptive equalizer is used on two-hop wireless links to enhance the performance of the system. Here we find that zero-forcing adaptive equalizer works better for QPSK scheme and Nakagami-m fading channel compared to 8-PSK scheme and the Rayleigh fading channel.
—Probability of symbol error, NLOS, Nakagami-m and Rayleigh fading, Coherent demodulator, MMSE and Gaussian Q function.
Abu Sayed Md. Mostafizur Rahaman and Md. Imdadul Islam are with the Department of Computer Science and Engineering, Jahangirnagar University, Dhaka 1342, Bangladesh. Md. Imdadul Islam works also as an adjunct professor of Electronics and Communications Engineering Department at East West University, 43 Mohakhali, Dhaka 1212, Bangladesh (e-mail: firstname.lastname@example.org).
M. R. Amin is with the Electronics and Communications Engineering Department, East West University, 43 Mohakhali, Dhaka 1212, Bangladesh (e-mail: email@example.com).
Cite:Abu Sayed Md. Mostafizur Rahaman, Md. Imdadul Islam, and M. R. Amin, "Application of Zero-Forcing Adaptive Equalization in Compensation of Fading Effect of Two-hop Wireless Link," International Journal of Engineering and Technology vol. 3, no. 6, pp. 628-631, 2011.