Date of Award
Master of Science in Electrical Engineering - (M.S.)
Electrical and Computer Engineering
Ali N. Akansu
Yun Q. Shi
Multi-user codes are a widely used in transmitting user data from base station to mobile station and vice versa. In wireless communications a signal received by a mobile station goes through different fading channels resulting. These multi-paths add constructively and destructively with different delays and attenuation at the mobile station. The autocorrelation and cross correlation properties of the Multi-user codes play a significant role in extracting the user data from the signal corrupted by multipath fading channel.
The thesis presents a comparison of different Multi-user codes based on their autocorrelation and cross correlation properties. These codes are passed through a multipath fading models and their performance is evaluated based on the Bit Error Rate (BER). The performance for the Multi-user codes is compared both in synchronous and asynchronous mode of transmission to the base station. The model used for simulating multipath fading channel is Clark model.
Ulislam, Muhammad Tauseef, "Performance of multi-user codes in wireless communications" (2005). Theses. 486.