Abstract
UWB(Ultra Wide Band) is a radio technology that transmits information spread over a large bandwidth. These systems share the radio frequency spectrum with narrowband signals and also provide high data rates, greater bandwidth and improved channel capacity. Hence it has attracted a lot of interest in researchers worldwide. The various design challenges include channel estimation and interference mitigation. MAI (Multiple Access Interference) degrades the performance of UWB systems. To suppress the multiple access interference, an α-stable model along with Fama/Roll-McCulloch parameter estimation technique is proposed. This model adapts to the noise and interference in the environment and hence it forms a robust technique for adaptive receiver designs. From simulation results, it is verified that the proposed method provides better Bit Error Rate and capacity performance than the linear detectors.
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