  By using experimental measurements of smart grid applications compliant with
IEC 61850 in trace-driven WiMAX simulations, we show that the WiMAX MAC
protocol efficiency decreases as a function of the number of stations. To avoid
this shortcoming, we propose and analyze a novel WiMAX MAC protocol for smart
grid applications, which uses lattice correlators to improve the
throughput-delay performance significantly. For the considered configurations,
the obtained maximum throughput of the proposed MAC protocol outperforms the
current WiMAX MAC protocol by up to 41%.
