Abstract—One of the major challenges in wireless communications, especially in urban area, is to detect the digital data under different fading environment and additive white Gaussian noise (AWGN). In a two-hop wireless links, each link is affected by fading and noise which degrades the overall performance of the communication system. In this paper performance of two-hop link is analyzed under Rayleigh and Nakagami-m fading environments separately for 8-PSK and 16-QAM modulation schemes. The objective of the paper is to observe the relative impact of two fading environments on the two above mentioned modulation schemes if no combining scheme or error correction measure is taken on the repeater station.
Index Terms—Probability of symbol error, AWGN, coherent demodulator, channel state information (CSI), average power scaling (APS), 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 (e-mail: email@example.com).
M. R. Amin is with the Department of Electronics and Communications Engineering, East West University, 43 Mohakhali, Dhaka 1212, Bangladesh (corresponding author, phone: +880-1715296735; fax: +880-2-8812336;e-mail: ramin@ ewubd.edu).
Cite: Abu Sayed Md. Mostafizur Rahaman, Md. Imdadul Islam and M. R. Amin, "Performance Evaluation of Two-Hop Wireless Link under Rayleigh and Nakagami-m Fading Channel for 8-PSK and 16-QAM," International Journal of Engineering and Technology vol. 3, no. 5, pp. 454-459, 2011.