American Journal of Information Science and Computer Engineering
Articles Information
American Journal of Information Science and Computer Engineering, Vol.1, No.1, May 2015, Pub. Date: May 14, 2015
Interference Management in MIMO-OFDM-Based Emerging Wireless Systems
Pages: 1-9 Views: 1933 Downloads: 663
Authors
[01] Isiaka A. Alimi, Department of Electrical and Electronics Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Akure, Nigeria.
[02] Jide J. Popoola, Department of Electrical and Electronics Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Akure, Nigeria.
[03] Kayode F. Akingbade, Department of Electrical and Electronics Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Akure, Nigeria.
[04] Michael O. Kolawole, Department of Electrical and Electronics Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Akure, Nigeria.
Abstract
Despite the limited bandwidth resource and exponential growth in the number of subscribers, the requirement for high quality wireless communication coupled with higher data rates increases with various emerging multimedia applications. In the light of this, the challenge is managing the available spectrum efficiently. As such, an increase in the spectral efficiency implies ability to have greater throughput in the same amount of spectrum, and by implementing appropriate advanced technologies; the spectrum efficiency of wireless communication systems can be improved. It has been established that technologies such as orthogonal frequency division multiplexing (OFDM) and multiple input, multiple output (MIMO) systems, can enhance the performance of the emerging wireless communication systems significantly in terms of data rates and channel capacity in rich-scattering environments. To achieve the required efficiency, multi-user detection is of paramount importance in MIMO-OFDM systems to reduce signal interference such as multiuser interference. In this paper, both linear and nonlinear detection algorithms are broadly analysed and low-complex hybrid interference detection (HID) scheme is proposed. The proposed algorithm performance is estimated in terms of bit error rate (BER) and simulation results show near optimal performance.
Keywords
BER, HID, ICD, MUD, SIC, SQRD
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