Mobile WiMAX is a broadband wireless access based on OFDM/OFDMA technology which employs Adaptive Modulation and Coding (AMC) scheme to attain higher data rates. In this paper, a selection strategy is incorporated with GNU Radio for the determination of Modulation and Coding Scheme (MCS) level dependent upon channel estimation parameter over AWGN and Rayleigh fading channels. MCS level choice has been done for different threshold values by varying channel model and FFT size. BER (Bit Error Rate) execution of WiMAX physical layer is investigated utilizing Convolutional coder, RMG (Reed-Muller-Golay) coder and RM (Reed-Muller) coders over AWGN and Binary Symmetric Channels by changing number of bits for every byte and modulation schemes in GNU Radio Companion. In this paper, various 2×2 MIMO frameworks are analysed under digital modulations and Convolutional code rates. The aim of this paper is to provide a thought about the benefits of multiple antenna systems over single antenna systemsdeployments using GNU Radio.
展开▼
机译：移动WiMAX是基于OFDM / OFDMA技术的宽带无线接入，该技术采用自适应调制和编码（AMC）方案来获得更高的数据速率。在本文中，一种选择策略与GNU Radio结合在一起，用于根据AWGN和瑞利衰落信道上的信道估计参数确定调制和编码方案（MCS）级别。通过更改通道模型和FFT大小，已为不同的阈值完成了MCS级别选择。通过在每个WWGN和二进制对称信道上使用卷积编码器，RMG（Reed-Muller-Golay）编码器和RM（Reed-Muller）编码器，通过更改每个字节的位数和调制来研究WiMAX物理层的BER（误码率）执行情况GNU Radio Companion中的方案。在本文中，在数字调制和卷积码率下分析了各种2×2 MIMO框架。本文的目的是提供有关使用GNU Radio的多天线系统优于单天线系统部署的好处的思考。
展开▼
