Performance analysis of scheduling schemes for MIMO OSFBC-OFDM system in α-μ fading channel scenarios

Abstract

High performance for MIMO-OFDM wireless systems is very much desirable. In this paper, we study performance analysis of scheduling schemes for multiuser MIMO-OFDM systems employing Orthogonal Space-Frequency Block Coding (OSFBC) in α-μ fading scenario over frequency selective fading channels. We analyze the advantages of using user scheduling in MIMO-OFDM systems employing OSFBC and adaptive modulation schemes. α-μ distribution includes Nakagami-m and Weibull distribution as special cases. Analytical expressions for Average Spectral Efficiency (ASE), average Bit Error Rate (BER), and outage probability for the scheduling scheme are derived. Both full feedback and limited-feedback channel information scenarios are considered. Using the results obtained from both mathematical expressions and numerical simulations, the ASE will be compared.Index Terms-Adaptive Modulation; α−μ fading channel; Spectral Efficiency; User Scheduling; Outage probability; Limited and full feedback.

Security in Spatially Correlated MIMO OSFBC OFDM Multicast System over Frequency Selective Fading Channel

“…They derived SOP, SPSC and ASC and demonstrated the impact of fading parameters. In the literature [3], [11]- [13], authors considered OSFBC -OFDM system. Employing OSFBC in MIMO-OFDM system, the system performance can be significantly improved which is shown in [3].…”

“…In the literature [3], [11]- [13], authors considered OSFBC -OFDM system. Employing OSFBC in MIMO-OFDM system, the system performance can be significantly improved which is shown in [3]. The MIMO-OFDM system was considered in [11] to investigate the secrecy performance.…”

“…Moreover, the medium of wireless multicasting is open which is vulnerable to eavesdropping and fraud [2]. But the system performance can significantly be improved by employing OSFBC with OFDM, because it reduces the complexity in the receivers [3].…”

Performance analysis of MIMO system over α-μ fading channel for full scheduling scheme

“…Outage probability is defined as the probability that instantaneous SNR falls below a specified threshold γ th [23] and is given as In this paper, the performance is evaluated in term of BER and outage probability for full feedback scheduling scheme. Simulation parameters are as follows: R c =0.75, μ=1, α=2, n t =2, k=16, and M=16.…”