Performance Analysis of SNR Based Scheduling Scheme for MIMO OSFBC-OFDM Systems in η–µ Fading Channels

Abstract

High performance of MIMO-OFDM wireless systems is very much desirable. In this paper, we study the performance analysis of scheduling schemes for multiuser MIMO-OFDM systems employing Orthogonal Space-Frequency Block Coding in g-l fading scenario over frequency selective fading channels. We analyze the advantages of user scheduling in MIMO-OFDM systems employing OSFBC and adaptive modulation schemes. It can be noted that g-l distribution includes Nakagami-m and Hoyt distributions as special cases. Analytical expressions for average spectral efficiency (ASE), average bit error rate (BER), and outage probability for scheduling schemes are derived. Both full-feedback and limitedfeedback channel information scenarios are considered. Using the results obtained from both mathematical expressions and numerical simulations, the ASE and BER are compared and discussed.

Performance Enhancement in SU and MU MIMO-OFDM Technique for Wireless Communication: A Review

“…OFDM with 16-QAM increases spectral efficiency but still fading is the major issue. Further Uma Raj and Vidhyacharan Bhaskar [26] has studied the performance analysis of scheduling schemes for multiuser MIMO-OFDM systems employing Orthogonal Space-Frequency Block Coding in η-μ fading scenario over frequency selective fading channels and On basis of this ASE and BER are compared and presented advantages of SNR based scheduling in MIMO-OFDM system employing OSFBC and adaptive modulation and discussed but they never checked system for real application which is main disadvantage. Introduced a linear technique [27] that performs successive MMSE prefiltering in order to reduce the performance loss due to the zero MUI constraint and the cancellation of the interference between the antennas located at the same terminal.…”